NUVEEN TAX EXEMPT UNIT TRUST SERIES 823
S-6EL24/A, 1995-09-07
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<PAGE>


                                                      File No. 33-62325
                                                      40 Act File No. 811-2271


                       SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549

                                AMENDMENT NO. 1
                                       TO
                                    FORM S-6

For Registration under the Securities Act of 1933 of Securities of Unit
Investment Trusts Registered on Form N-8B-2

A.  Exact name of Trust:     NUVEEN TAX-EXEMPT UNIT TRUST, SERIES 823

B.  Name of Depositor:       JOHN NUVEEN & CO. INCORPORATED

C.  Complete address of Depositor's principal executive offices:

                             333 West Wacker Drive
                             Chicago, Illinois  60606

D.  Name and complete address of agents for service:

                             JOHN NUVEEN & CO. INCORPORATED
                             Attn:  James J. Wesolowski
                             333 West Wacker Drive
                             Chicago, Illinois 60606

                             CHAPMAN AND CUTLER
                             Attn:  Eric F. Fess
                             111 West Monroe Street
                             Chicago, Illinois  60603

It is proposed that this filing will become effective (check appropriate box)

- -----
- -----    immediately upon filing pursuant to paragraph (b)

- -----
- -----    on (date) pursuant to paragraph (b)

- -----
- -----    60 days after filing pursuant to paragraph (a)

- -----
- -----    on (date) pursuant to paragraph (a) of rule 485 or 486

E.  Title and amount of securities being registered:  An indefinite number of
    Units as permitted by Rule 24f-2.

F.  Proposed maximum offering price to the public of the securities being
    registered:  Not presently determinable.

G.  Amount of filing fee:  $500 in accordance with Rule 24f-2.*

H.  Approximate date of proposed sale to the public:

    As soon as practicable after the effective date of the Registration
    Statement.

*Previously Paid
______
          Check box if it is proposed that this filing will become effective
          on 9/07/95 at 1:30 p.m. pursuant to Rule 487.
______


<PAGE>

                 NUVEEN TAX-EXEMPT UNIT TRUST, SERIES 823

                             Cross-Reference Sheet

                     Pursuant to Rule 404(c) of Regulation C
                        under the Securities Act of 1933

               (Form N-8B-2 Items Required by Instruction 1 as
                           to Prospectus on Form S-6)


FORM N-8B-2                                      FORM S-6
ITEM NUMBER                                      HEADING IN PROSPECTUS

    I.   ORGANIZATION AND GENERAL INFORMATION

1.  (a)  Name of trust                    )   Prospectus Part-A Cover Page
    (b)  Title of securities issued       )

2.  Name and address of Depositor         )   Information About the Sponsor

3.  Name and address of Trustee           )   Information About the Trustee

4.  Name and address of principal         )   Information About the Sponsor
    Underwriter                           )

5.  Organization of trust                 )   What Is The Nuveen Tax-Exempt
                                          )   Unit Trust?

6.  Execution and termination of          )   What Is The Nuveen Tax-Exempt
    Trust Agreement                       )   Unit Trust?
                                          )   Information About the Trustee
                                          )   Other Information

7.  Changes of Name                                    *

8.  Fiscal Year

9.  Litigation

    II.  GENERAL DESCRIPTION OF THE TRUST AND SECURITIES OF THE TRUST

10. General Information regarding         )   Summary of Portfolios
    trust's securities                    )   Why and How are the Bonds
                                              Insured?
                                              When Are Distributions
                                              Made to Unitholders?
                                          )   Ownership and Transfer of Units
                                          )   How Units May Be Redeemed
                                              Without Charge
                                          )   How Bonds May Be Removed From
                                          )   The Trusts
                                          )   Information About the Trustee
                                          )   Information About the Sponsor
                                          )   Other Information

                                          )   What Is The Tax Status of
                                          )   Unitholders?

11. Type of securities comprising         )   What Is The Nuveen Tax-Exempt
    units                                 )   Unit Trust?
                                          )   Summary of Portfolios
                                          )   Composition of Trusts
                                          )   What Are The Objectives Of
                                          )   The Trusts?
                                              Why and How are the Bonds
                                              Insured?

12. Certain information regarding         )   *
    periodic payment certificates         )

13. (a)Load, fees, expenses, etc.         )   Part A - Essential Information 
                                          )   How Is The Public Offering Price
                                          )   Determined?
                                          )   Market For Units
                                          )   What Is Accrued Interest?
                                          )   What Are Estimated Long Term 
                                          )   Return And Estimated Current 
                                          )   Return?
                                          )   How Was The Price Of The Bonds
                                          )   Determined At The Date of Deposit?
                                          )   What Are Normal Trust Operating
                                          )   Expenses?
                                          )   Summary of Portfolios
                                          )   When Are Distributions Made
                                          )   To Unitholders?
                                          )   How Detailed Are Reports To
                                              Unitholders?


<PAGE>


    (b)Certain information regarding      )   *
       periodic payment certificates      )


    (c)Certain percentages                )   How Is the Public Offering Price
                                          )   Determined?
                                          )   Market For Units
                                          )   What Are Estimated Long Term 
                                          )   Return And Estimated Current 
                                          )   Return?
                                          )   How Was The Price of the Bonds
                                          )   Determined At The Date of Deposit?
                                          )   What is Accrued Interest?

    (d)Certain other fees, etc.           )   How Was The Price Of The Bonds
       payable by holders                 )   Determined At The Date of Deposit?
                                          )   What Are Normal Trust Operating
                                          )   Expenses?
                                          )   Ownership and Transfer of Units

    (e)Certain profits receivable         )   Composition of Trusts
       by depositor, principal under-     )
       writer, trustee or affiliated      )   How Units May Be Purchased By
       persons                            )   The Sponsor

    (f)Ratio of annual charges
       to income                                *

14. Issuance of trust's securities        )   Summary of Portfolios
                                          )   When Are Distributions Made
                                          )   To Unitholders?
                                          )   Ownership and Transfer of Units
                                          )   How Units May Be Redeemed
                                          )   Without Charge

15. Receipt and handling of payments      )   *
    from purchasers                       )

16. Acquisition and Disposition of        )   What Is The Nuveen Tax-Exempt
    Underlying Securities                 )   Unit Trust?
                                          )   Summary of Portfolios
                                          )   Composition of Trusts
                                          )   Why and How are the Bonds
                                              Insured?
                                          )   How Units May Be Redeemed
                                              Without Charge
                                          )   How Bonds May Be Removed From
                                          )   The Trusts
                                          )   Other Information

17. Withdrawal or redemption              )   Market For Units
                                          )   How Units May Be Redeemed
                                          )   Without Charge
                                          )   How Units May Be Purchased By
                                          )   The Sponsor

18. (a)Receipt and disposition of income  )   Summary of Portfolios
                                          )   When Are  Distributions
                                              Made To Unitholders?
                                          )   How Detailed Are Reports To
                                          )   Unitholders?

    (b)Reinvestment of distributions      )   Accumulation Plan

    (c)Reserves or special funds          )   Summary of Portfolios
                                          )   When Are Distributions
                                          )   Made To Unitholders?

    (d)Schedule of distributions          )   *

19. Records, accounts and reports         )   When Are Distributions Made
                                          )   To Unitholders?
                                          )   How Detailed Are Reports To
                                          )   Unitholders?

20. Certain miscellaneous provisions of   )   Information About the Trustee
    Trust Agreement                       )   Information About the Sponsor
                                          )   Other Information


<PAGE>


21. Loans to security holders             )   *

22. Limitations on liability              )   Summary of Portfolios
                                          )   Composition of Trusts
                                          )   Information About The Trustee

23. Bond arrangements                     )   *

24. Other material provisions of Trust    )   *
    Agreement.                            )

    III. ORGANIZATION, PERSONNEL AND AFFILIATED PERSONS OF DEPOSITOR

25. Organization of Depositor             )   Information About the Sponsor

26. Fees received by Depositor            )   *

27. Business of Depositor                 )   Information About the Sponsor

28. Certain information as to officials   )  *
    and affiliated persons of Depositor   )

29. Voting Securities of Depositor        )   Information About the Sponsor

30. Persons controlling Depositor         )
                                          )
31. Payments by Depositor for certain     )
    services rendered to trust            )
                                          )   *
32. Payments by Depositor for certain     )
    other services rendered to trust      )
                                          )
33. Remuneration of employees of Depositor)
    for certain services rendered to trust)
                                          )
34. Remuneration of other persons for     )
    certain services rendered to trust    )

<PAGE>


    IV.  DISTRIBUTION AND REDEMPTION OF SECURITIES

35. Distribution of trust's securities by )
    states                                )
                                          )   *
36. Suspension of sales of trust's        )
    securities                            )
                                          )
37. Revocation of authority to distribute )

38. (a)Method of distribution             )
                                          )
    (b)Underwriting agreements            )   How Units of The Trusts Are
                                          )   Distributed To The Public
    (c)Selling agreements                 )

39. (a)Organization of principal          )
         underwriter                      )
                                          )   Information About The Sponsor
    (b)NASD membership of principal       )
         underwriter                      )

40. Certain fees received by principal    )   *
    underwriter


41. (a)Business of principal underwriter  )
                                          )
    (b)Branch offices of principal under- )    *
       writer                             )
                                          )
    (c)Salesmen of principal underwriter  )

42. Ownership of trust's securities by    )   *
    certain persons                       )
                                          )
43. Certain brokerage commissions received)   *
    by principal underwriter              )

44. (a)Method of valuation                )   Part A - Essential Information 
                                          )   How Is The Public Offering Price
                                          )   Determined?
                                          )   How Was The Price Of The Bonds
                                          )   Determined At The Date of Deposit?
                                          )   What Are Normal Trust Operating
                                          )   Expenses?


    (b)Schedule as to offering price      )   *

    (c)Variation in offering price to     )   How Is the Public Offering Price
       certain persons                    )   Determined?
                                          )   What Is Accrued Interest?
                                          )   How Was The Price Of The Bonds
                                          )   Determined At The Date of Deposit?

<PAGE>

45. Suspension of redemption rights       )   *

46. (a)Redemption valuation               )   Unit Value and Evaluation
                                          )   How Units May Be Redeemed
                                          )   Without Charge
                                          )   How Units May Be Purchased By
                                          )   The Sponsor

    (b)Schedule as to redemption price    )   *

47. Maintenance of position in underlying )   How Is the Public Offering Price
    securities                            )   Determined?
                                          )   How Units May Be Purchased By
                                          )   The Sponsor

    V.   INFORMATION CONCERNING THE TRUSTEE OR CUSTODIAN

48. Organization and regulation of Trustee)   Information About The Trustee

49. Fees and expenses of Trustee          )   Part A - Essential Information
                                          )   What Are Normal Trust Operating
                                          )   Expenses?

50. Trustee's lien                        )   What Are Normal Trust Operating
                                          )   Expenses?
                                          )   When Are Distributions Made
                                          )   To Unitholders?

    VI.  INFORMATION CONCERNING INSURANCE OF HOLDERS OF SECURITIES

51. Insurance of holders of trust's       )   *
    securities                            )

                        VII.  POLICY OF REGISTRANT

52. (a)Provisions of trust agreement with )   What Are Normal Trust Operating
       respect to selection or elimination)   Expenses?
       of underlying securities           )   How Units May Be Redeemed With-
                                          )   out Charge
                                          )   How Bonds May Be Removed From
                                          )   The Trusts

    (b)Transactions involving elimination )   *
       of underlying securities           )

    (c)Policy regarding substitution or   )   Summary of Portfolio
       elimination of underlying          )   Composition of Trusts
       securities                         )   How Bonds May Be Removed From
                                          )   The Trusts

    (d)Fundamental policy not otherwise   )   *
       covered                            )

53. Tax status of trust                   )   What Is The Tax Status Of
                                          )   Unitholders?

    VIII. FINANCIAL AND STATISTICAL INFORMATION

54. Trust's securities during last ten years)   *

55.)                                      )   *
56.)Certain information regarding         )
57.)periodic payment certificates         )
58.)                                      )

__________

*Inapplicable, omitted, answer negative or not required.

<PAGE>
                                           A
   
NUVEEN               NUVEEN MARYLAND TRADITIONAL TRUST 310
                   (NUVEEN TAX EXEMPT UNIT TRUSTS SERIES 823)
    
 
                                                CUSIP NUMBERS:
                                                   Monthly:           67102E 220
                                                   Quarterly:         67102E 238
                                                   Semi-Annually:     67102E 246
 
   
            PROSPECTUS--PART A (SPECIFIC TERMS) -- SEPTEMBER 7, 1995
              THIS PART A OF THE PROSPECTUS MAY NOT BE DISTRIBUTED
              UNLESS ACCOMPANIED BY THE PART B OF THE PROSPECTUS.
     BOTH PARTS OF THE PROSPECTUS SHOULD BE RETAINED FOR FUTURE REFERENCE.
    
 
    Maryland  Traditional Trust,  Series 310 (the  "Maryland Traditional Trust")
consists of a portfolio of interest-bearing  obligations issued by or on  behalf
of  the State  of Maryland, certain United  States Territories or authorities
and political subdivisions thereof which, in the
opinion of recognized bond  counsel to the  issuing authorities, provide  income
which  is exempt from Federal income tax,  Maryland income tax and local tax, to
the extent indicated below.
    The objectives of the  Trust are income  exempt from Federal income tax and
state income taxes, and conservation of capital. The objectives are, of
course,  dependent upon the  continuing ability of  the issuers, obligors and/or
insurers to meet their respective obligations.
    The Portfolio of Maryland  Traditional Trust 310  consists of 6  obligations
issued  by entities located in Maryland and  two obligations issued by entities
located in the District of Columbia and the Territory of Puerto Rico, 
respectively. The  Bonds in  the Trust are either general  obligations of the 
governmental entity issuing
them and are backed by the taxing  power thereof or are payable as to  principal
and  interest from  the income of  a specific  project or authority  and are not
supported by the issuer's power  to levy taxes. The  sources of payment for  the
Bonds,  other than  general obligation Bonds  and Bonds escrowed  to maturity or
optional redemption date, are divided as follows:
 
<TABLE>
<CAPTION>
 NUMBER OF                                                                                    PORTFOLIO
  ISSUES                                   PURPOSE OF ISSUE                                  PERCENTAGE
- -----------  -----------------------------------------------------------------------------  -------------
<C>          <S>                                                                            <C>
     1       Electrical System Revenue                                                             14%
     1       Health Care Facility Revenue                                                          14
     1       Water and/or Sewer Revenue                                                            14
     1       Dedicated-Tax Supported Revenue                                                        7
     1       Transportation Facility Revenue                                                        7
</TABLE>
 
    Approximately 43.0% of the  aggregate principal amount of  the Bonds in  the
Trust (accounting for approximately 42.1% of the aggregate offering price of the
Bonds) are original issue discount bonds. See "RISK FACTORS" for a discussion of
the characteristics of such obligations and of the risks associated therewith.
    For  a discussion of the  risks associated with investments  in the bonds of
various issuers, see "RISK FACTORS" in Part B of this Prospectus. Certain of the
Bonds may be insured by a commercial insurer, see "Schedule of Investments"  and
"WHY AND HOW ARE THE BONDS INSURED?" in Part B of this Prospectus.
 
   
                             ESSENTIAL INFORMATION
              REGARDING THE NUVEEN MARYLAND TRADITIONAL TRUST 310
      ON THE BUSINESS DAY PRIOR TO THE DATE OF DEPOSIT, SEPTEMBER 6, 1995
    
          Sponsor and Evaluator........ John Nuveen & Co. Incorporated
          Trustee...................... The Chase Manhattan Bank, N.A.
                ------------------------------------------------
 
The  income, expense and distribution data  set forth below have been calculated
for  Unitholders  receiving  monthly,  quarterly  or  semi-annual   distribution
options.
 
<TABLE>
<S>                                                   <C>
Principal Amount of Bonds in Trust..................  $     3,500,000
Number of Units.....................................           35,000
Fractional Undivided Interest in Trust Per Unit.....         1/35,000
Public Offering Price--Less than 500 Units
    Aggregate Offering Price of Bonds in Trust......  $     3,357,003
    Divided by Number of Units......................  $         95.91
    Plus Sales Charge 4.9% (5.152% of the Aggregate
     Offering Price of the Bonds per Unit)..........  $          4.94
    Public Offering Price Per Unit(1)...............  $        100.85
Redemption Price Per Unit (exclusive of accrued
  interest).........................................  $         95.45
Sponsor's Initial Repurchase Price Per Unit
  (exclusive of accrued interest)...................  $         95.91
Excess of Public Offering Price Per Unit over
  Redemption Price Per Unit.........................  $          5.40
Excess of Public Offering Price Per Unit over
  Sponsor's Repurchase Price Per Unit...............  $          4.94
Average Maturity of Bonds in the Trust(2)...........       23.7 years
</TABLE>
 
- ----------
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE COMMISSION OR ANY  STATE SECURITIES COMMISSION  NOR HAS THE  SECURITIES
AND  EXCHANGE  COMMISSION OR  ANY STATE  SECURITIES  COMMISSION PASSED  UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
                                     1 of 6
<PAGE>
                         ESSENTIAL INFORMATION (CONT.)
 
   
<TABLE>
<CAPTION>
                                                  MONTHLY        QUARTERLY      SEMI-ANNUAL
                                                -----------     -----------     -----------
  <S>                                           <C>             <C>             <C>
  Calculation of Estimated Net Annual
    Interest Income Per Unit
      Annual Interest Income(3)............        $ 5.4145        $ 5.4145       $ 5.4145
      Less Estimated Annual Expense........         $ .2402         $ .2082        $ .1892
                                                -----------     -----------     -----------
      Estimated Net Annual Interest
        Income(4)..........................        $ 5.1743        $ 5.2063       $ 5.2253
  Daily Rate of Accrual Per Unit...........        $ .01437        $ .01446       $ .01451
  ESTIMATED CURRENT RETURN(5)..............            5.13%           5.16%          5.18 %
  ESTIMATED LONG TERM RETURN(5)............            5.15%           5.19%          5.21 %
  Trustee's Annual Fees(6).................        $ 1.5193        $ 1.1993       $ 1.0093
Date of Deposit..................................................................................September 7, 1995
Settlement Date.................................................................................September 12, 1995
Mandatory Termination Date....................................See "OTHER INFORMATION" in Part B of this Prospectus
Minimum Value of Each Trust...................................See "OTHER INFORMATION" in Part B of this Prospectus
Sponsor's Annual Evaluation Fee.........................................$0.17 per $1,000 principal amount of Bonds
Estimated Annual Organizational Expenses(7).......................................................$.03086 per Unit
- ----------
<FN>
Evaluations for purpose of sale,  purchase or redemption of  Units are made as of  4 p.m. Eastern time  on the business day  next
following  receipt of an order by the Sponsor  or Trustee. (See "HOW IS THE PUBLIC  OFFERING PRICE DETERMINED?" in Part B of this
Prospectus.)
(1) Units are offered at the Public  Offering Price plus accrued interest from the  preceding Record Date to, but not  including,
    the  date of settlement (normally three business days after purchase). The Date of Deposit of the Fund has been designated as
    the First Record  Date for  all plans of  distribution of  the Trust and,  accordingly, for  Units purchased on  the Date  of
    Deposit,  $.07 of accrued interest to the  Settlement Date will be added to the  Public Offering Price. (See "WHAT IS ACCRUED
    INTEREST?" in Part B of this Prospectus.)
(2) The Average Maturity of Bonds in the Trust is calculated based upon the stated maturities of the Bonds in the Trust (or, with
    respect to Bonds for which funds or securities have been placed  in escrow to redeem such Bonds on a stated call date,  based
    upon  such call date). The Average Maturity of Bonds in the Trust  may increase or decrease from time to time as Bonds mature
    or are called or sold.
(3) Assumes delivery of all Bonds. (See "COMPOSITION OF TRUSTS" appearing in Part B of this Prospectus.) Interest income does not
    include accretion of original issue discount  on "zero coupon" Bonds, Stripped  Obligations or other original issue  discount
    Bonds. (See "RISK FACTORS" in Part B of this Prospectus.)
(4)  The amount and timing of interest distributions from the Trust  under the various plans of distribution are set forth below.
    It is anticipated that the amount of  interest to be distributed per Unit in  each year under each plan of distribution  will
    initially  be substantially equal to the Estimated Net Annual Interest  Income per Unit for that plan. The amount of interest
    to be distributed annually per Unit, will generally change as Bonds are redeemed, mature or are sold or as fees and  expenses
    increase or decrease.
(5)  Estimated Long Term  Return for the Trust  represents the average of  the yields to  maturity (or call) of  the Bonds in the
    Trust's portfolio  calculated in  accordance with  accepted bond  practices and  adjusted to  reflect a  compounding  factor,
    expenses  and sales charges. Estimated Current Return is computed by  dividing the Net Annual Interest Income per Unit by the
    Public Offering  Price, and  in contrast  to Estimated  Long Term  Return does  not reflect  the amortization  of premium  or
    accretion  of discount, if any. For more information see "WHAT  ARE ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN?"
    in Part B of this Prospectus.
(6) Each Trustee annual fee is  per $1,000 principal amount of  the underlying Bonds in the Trust  for that portion of the  Trust
    that represents a particular plan of distribution.
(7)  The Trust (and therefore Unit holders) will bear all or  a portion of its organizational costs (including costs of preparing
    the registration statements,  the trust  indenture and other  closing documents,  registering Units with  the Securities  and
    Exchange Commission and states, the initial audit of the Trust portfolio, legal fees and the initial fees and expenses of the
    Trustee  but not including the  expenses incurred in the  printing of preliminary and final prospectuses,  and expenses 
    incurred in the
    preparation and printing of brochures and other advertising materials and any other selling expenses) as is common for mutual
    funds. Total  organizational expenses  will be  amortized over  a five  year period.  See "WHAT  ARE NORMAL  TRUST  OPERATING
    EXPENSES?"  in Part B and  "Statement of Condition." Historically, the  sponsors of unit investment  trusts have paid all the
    costs of establishing such trusts.
</TABLE>
    
 
                             INTEREST DISTRIBUTION
 
    Details of interest distributions per Unit of the Maryland Traditional Trust
under the various plans appear in  the following table based upon estimated  Net
Annual Interest Income at the Date of Deposit:
 
<TABLE>
<CAPTION>
                                                                                                          NORMAL
                                                                                                      DISTRIBUTIONS
                                                  1995                             1996                  PER YEAR
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................       10/1           11/1            2/1            5/1
Distribution Date.....................      10/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3448(1)                                                  $  5.1743
                                                          --------  $.4311 every month  --------
Quarterly Distribution Plan...........  $   .3448(1)   $   .4338(2)   $  1.3014      $  1.3014        $  5.2063
Semi-Annual Distribution Plan.........  $   .3448(1)   $   .4353(3)                  $  2.6118        $  5.2253
- --------------------------------------------------------------------------------------------------------------------
<FN>
 *  Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
   August 1 and November 1. Record Dates for monthly distributions are the first day of each month. Distribution Dates under each
   distribution plan are the fifteenth day of the month in which the respective Record Date occurred. For additional  information
   see "WHEN ARE DISTRIBUTIONS MADE TO UNITHOLDERS?" in Part B of this Prospectus.
(1)  The first distribution will be paid to all Unitholders,  regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The  second distribution  under the  quarterly  distribution plan  represents a  1-month distribution;  subsequent  quarterly
    distributions will be regular 3-month distributions.
(3)  The second distribution  under the semi-annual distribution  plan represents a  1-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
                                     2 of 6
<PAGE>
                             MARYLAND RISK FACTORS
 
    The financial condition  of the  State of  Maryland is  affected by  various
national,   economic,   social  and   environmental  policies   and  conditions.
Additionally, Constitutional and statutory limitations imposed on the State  and
its  local governments concerning taxes, bond indebtedness and other matters may
constrain the revenue-generating capacity of the State and its local governments
and, therefore,  the  ability of  the  issuers of  the  Bonds to  satisfy  their
obligations.
 
    The  economic vitality of the State  and its various regions and, therefore,
the ability of the  State and its  local governments to  satisfy the Bonds,  are
affected  by  numerous  factors.  The  State's  economic  base  is  diversified,
consisting of manufacturing, construction  and service industries,  supplemented
by rural areas with selective commercial agriculture. The State has a relatively
high  wage  labor  market which  has  resulted  in the  State's  business sector
becoming more vulnerable to competitive pressures.
 
    The State is a party to numerous lawsuits in which an adverse final decision
could materially affect the State's governmental operations and consequently its
ability to pay debt service on its obligations.
 
    The State of  Maryland currently  maintains a  "triple A"  bond rating  from
Standard & Poor's, Moody's and Fitch Investors Service on its general obligation
indebtedness.
 
    Further  information concerning Maryland  risk factors may  be obtained upon
written  or  telephonic  request   to  the  Trustee   as  described  in   "OTHER
INFORMATION--Supplemental Information" appearing in Part B of this Prospectus.
 
                     TAX STATUS--MARYLAND TRADITIONAL TRUST
 
    For  a discussion  of the  Federal tax status  of income  earned on Maryland
Traditional Trust Units, see "WHAT IS THE TAX STATUS OF UNITHOLDERS?" in Part B
of this Prospectus.
 
    The  assets   of   the   Maryland  Traditional   Trust   will   consist   of
interest-bearing  obligations issued by  or on behalf of  the State of Maryland,
its political subdivisions and authorities and, provided the interest thereon is
exempt from State income  taxes by the  laws or treaties  of the United  States,
obligations  issued  by  or  on  behalf of  the  United  States'  territories or
possessions, including Puerto Rico, Guam and the Virgin Islands, their political
subdivisions and authorities (the "Maryland Bonds").
 
    In the  opinion of  Venable, Baetjer  and Howard,  special counsel  for  the
Series for Maryland tax matters, under existing law:
 
        For   Maryland  state  and  local  income  tax  purposes,  the  Maryland
    Traditional Trust will not be taxable  as an association, and the income  of
    the  Maryland  Traditional  Trust  will  be treated  as  the  income  of the
    Unitholders.
 
        For Maryland  state and  local tax  purposes, interest  on the  Maryland
    Bonds which is exempt from Maryland state and local income tax when received
    by  the Maryland Traditional Trust, and  which would be exempt from Maryland
    state and local income tax if received directly by a Unitholder, will retain
    its status as tax-exempt interest when received by the Maryland  Traditional
    Trust and distributed to the Unitholders.
 
        Interest  derived from  the Maryland  Traditional Trust  by a Unitholder
    with respect to the Maryland Bonds will not be subject to Maryland state  or
    local  income  taxes;  provided that  interest  or profit  derived  from the
    Maryland Traditional Trust by a financial institution, as defined in Section
    8-101(c) of the Tax-General Article of the Annotated Code of Maryland,  will
    be  subject to the  Maryland state franchise  tax on financial institutions,
    except to the  extent such interest  is expressly exempt  from the  Maryland
    state  franchise tax  by the statutes  which authorize the  issuance of such
    Maryland Bonds  (See  Section  8-204  of the  Tax  General  Article  of  the
    Annotated Code of Maryland).
 
        A  Unitholder will not be subject to  Maryland state or local income tax
    with respect  to gain  realized when  Maryland Bonds  held in  the  Maryland
    Traditional  Trust  are sold,  redeemed, or  paid  at maturity,  except with
    respect to gain realized upon a  sale, redemption or payment at maturity  of
    such  Maryland  Bonds  as  are  issued by  or  on  behalf  of  United States
    territories or possessions,  their political  subdivisions and  authorities;
    such  gain will equal the proceeds of  sale, redemption or payment, less the
    tax basis of the Maryland Bonds (adjusted to reflect (a) the amortization of
    Bond premium or discount,  and (b) the deposit  in the Maryland  Traditional
    Trust  after the Unitholder's settlement date of Maryland Bonds with accrued
    interest).
 
        Although the  matter  is  not  free  from  doubt,  gain  realized  by  a
    Unitholder  from the  redemption, sale  or other  disposition of  a Maryland
    Traditional Trust Unit  (i) will  be subject  to Maryland  state income  tax
    except in the case of individual Unitholders who are not Maryland residents,
    and  (ii)  will be  subject  to Maryland  local income  tax  in the  case of
    individual Unitholders who are Maryland residents.
 
        If interest on  indebtedness incurred  or continued by  a Unitholder  to
    purchase  Units  in the  Maryland Traditional  Trust  is not  deductible for
    Federal income  tax purposes,  it will  also be  nondeductible for  Maryland
    state income tax purposes and, if applicable, local income tax purposes.
 
        Maryland Traditional Trust Units will be subject to Maryland inheritance
    and  estate tax  only if  held by  Maryland residents.  Neither the Maryland
    Bonds nor the Maryland Traditional Trust  Units will be subject to  Maryland
    personal property tax, sales tax or use tax.
 
                                     3 of 6
<PAGE>
   
                     NUVEEN MARYLAND TRADITIONAL TRUST 310
                   (NUVEEN TAX-EXEMPT UNIT TRUST SERIES 823)
         SCHEDULE OF INVESTMENTS AT THE DATE OF DEPOSIT, SEPTEMBER 7, 1995
    
 
   
<TABLE>
<CAPTION>
                                                                                          Ratings(3)           Trustee's
                                                                      Optional       ---------------------   Determination
 Aggregate        Name of Issuer and Title of Issue Represented      Redemption       Standard                of Offering
  Principal        by Sponsor's Contracts to Purchase Bonds(1)      Provisions(2)     & Poor's    Moody's        Price
<C>          <C> <S>                                              <C>                <C>         <C>        <C>
- ---------------------------------------------------------------------------------------------------------------------------
$   245,000      Washington Metropolitan Area Transit Authority      2004 at 102        AAA         Aaa     $       233,713
                   (District of Columbia), Gross Revenue Transit
                   Refunding Bonds, Series 1993, 5.25% Due
                   7/1/14. (FGIC Insured.)
    500,000      Anne Arundel County, Maryland, Pollution            2004 at 102         A          A2              507,790
                   Control Revenue Refunding Bonds (Baltimore
                   Gas and Electric Company Project), Series
                   1994, 6.00% Due 4/1/24.
    250,000      City of Baltimore, Maryland (Mayor and City         2004 at 100        AAA         Aaa             255,000
                   Council of Baltimore), Convention Center
                   Revenue Bonds, Series 1994, 6.00% Due 9/1/17.
                   (FGIC Insured.)
    500,000      City of Baltimore, Maryland (Mayor and City      No Optional Call      AAA         Aaa             452,155
                   Council of Baltimore), Refunding Revenue
                   Bonds (Wastewater Projects), Series 1994-A,
                   5.00% Due 7/1/22. (Original issue discount
                   bonds delivered on or about February 24, 1994
                   at a price of 94.22% of principal
                   amount.)(FGIC Insured.)
    500,000      Harford County, Maryland, Consolidated Public       2003 at 102        AA-         Aa              460,450
                   Improvement and Refunding Bonds, Series 1993,
                   4.90% Due 12/1/11. (General Obligation
                   Bonds.)
    500,000      Howard County, Maryland, Metropolitan District      2003 at 102        AA+         Aa1             486,295
                   Project and Refunding Bonds, 1993 Series A,
                   5.50% Due 8/15/22. (General Obligation
                   Bonds.)
    500,000      City of Takoma Park, Maryland, Hospital             2005 at 102        AAA         Aaa             482,380
                   Facilities Refunding and Improvement Revenue
                   Bonds (Washington Adventist Hospital), Series
                   1995, 5.50% Due 9/1/15. (Original issue
                   discount bonds delivered on or about June 27,
                   1995 at a price of 93.63% of principal
                   amount.)(FSA Insured.)
    505,000      Commonwealth of Puerto Rico, Public Improvement   2005 at 101 1/2      AAA         Aaa             479,220
                   Bonds of 1995 (General Obligation Bonds.),
                   5.375% Due 7/1/22. (Original issue discount
                   bonds delivered on or about May 4, 1995 at a
                   price of 93.916% of principal amount.)(MBIA
                   Insured.)
- -----------                                                                                                 ---------------
$ 3,500,000                                                                                                 $     3,357,003
- -----------                                                                                                 ---------------
- -----------                                                                                                 ---------------
</TABLE>
    
 
- ------------
 
    (1)  The Sponsor's contracts to purchase  Bonds were entered into during the
period from September 5, 1995 to September 6, 1995. Other information  regarding
the Bonds in the Trust on the initial Date of Deposit is as follows:
 
<TABLE>
<CAPTION>
                                             ANNUAL
                                 PROFIT     INTEREST
                    COST TO    (OR LOSS)   INCOME TO   BID PRICE
       TRUST        SPONSOR    TO SPONSOR    TRUST      OF BONDS
  ---------------  ----------  ----------  ----------  ----------
  <S>              <C>         <C>         <C>         <C>
  MARYLAND
  TRADITIONAL
  TRUST 310......  $3,346,963  $  10,040   $ 189,506   $3,341,059
</TABLE>
 
In  addition,  the difference  between the  Trustee's determination  of Offering
Price and Bid Price (as a percentage of principal amount) is .46%. Neither  cost
to  Sponsor nor  profit (or  loss) to  Sponsor reflects  underwriting profits or
losses received  or  incurred  by  the  Sponsor  through  its  participation  in
underwriting  syndicates. The  Sponsor did  not participate  as either  the sole
underwriter or as a manager or member of a syndicate that acted as the  original
underwriter of any of the Bonds.
 
    (2)  The Bonds are first subject to optional redemption in the years, and at
the prices,  shown. Unless  otherwise  indicated, the  Bonds, except  for  Bonds
issued  at a  substantial original issue  discount, are  redeemable at declining
prices (but not below  par value) in subsequent  years. Original issue  discount
bonds,  including zero coupon bonds, are generally redeemable at prices based on
the issue  price  plus  the  amount  of  original  issue  discount  accreted  to
redemption  plus, if applicable, some premium,  the amount of which will decline
in subsequent years. The  Bonds may also be  subject to sinking fund  redemption
without  premium  prior to  the dates  shown.  Certain Bonds  may be  subject to
redemption without  premium prior  to  the date  shown  pursuant to  special  or
mandatory  call provisions specified in the  instruments setting forth the terms
and provisions of  such Bonds.  See "COMPOSITION OF  TRUSTS", "WHAT  IS THE  TAX
STATUS OF UNITHOLDERS?" and "RISK FACTORS" in Part B of this Prospectus.
 
    (3)  Certain of the Bonds in a  Traditional Trust, as insured by an Insurer,
may be rated AAA by Standard &  Poor's and/or Aaa by Moody's. The insurance on 
such Bonds guarantees the payment of interest and
principal  on  such Bonds  when  due but  does  not cover  certain  market risks
associated with fixed income securities such as accelerated payments,  mandatory
redemptions or interest rate risks. (See "WHY AND HOW ARE THE BONDS INSURED?" in
Part  B  of this  Prospectus  and "Description  of  Ratings" in  the Information
Supplement.)
 
                                     4 of 6
<PAGE>
                             Statement of Condition
 
                     NUVEEN MARYLAND TRADITIONAL TRUST 310
 
   
                   (Nuveen Tax-Exempt Unit Trust, Series 823)
    
 
   
                            AS OF SEPTEMBER 7, 1995
    
 
   
<TABLE>
<S>                                                 <C>
    TRUST PROPERTY
Sponsor's contracts to purchase Tax-Exempt Bonds,
  backed by an irrevocable letter of
  credit(1)(2)....................................  $    3,357,003
Accrued interest to September 7, 1995 on
  underlying Bonds(1).............................          39,570
Organizational costs(3)...........................           5,400
                                                    --------------
            Total.................................  $    3,401,973
                                                    --------------
                                                    --------------
   LIABILITIES AND INTEREST OF UNITHOLDERS
LIABILITIES:
    Accrued interest to September 7, 1995 on
     underlying Bonds(4)..........................  $       39,570
    Accrued organizational costs(3)...............           5,400
                                                    --------------
            Total.................................  $       44,970
                                                    --------------
                                                    --------------
INTEREST OF UNITHOLDERS:
    Units of fractional undivided interest
     outstanding (35,000)
      Cost to investors(5)........................  $    3,529,956
        Less: Gross underwriting commission(6)....        (172,953)
                                                    --------------
    Net amount applicable to investors............  $    3,357,003
                                                    --------------
            Total.................................  $    3,401,973
                                                    --------------
                                                    --------------
- ------------
(1) Represented by  contracts to purchase  Tax-Exempt Bonds  which
    include  "when issued" or "regular  way" or "delayed delivery"
    contracts for which an irrevocable letter of credit issued  by
    a major commercial bank has been deposited with the Trustee on
    the  Date of Deposit. The amount  of such letter of credit and
    any cash  deposited  exceeds  the  amount  necessary  for  the
    purchase  of the  Bonds plus accrued  interest to  the Date of
    Deposit. At the Date of Deposit, Bonds may have been delivered
    to the Sponsor  pursuant to  certain of  these contracts;  the
    Sponsor  has assigned to the Trustee  all of its rights, title
    and interest in and to such Bonds.
(2) Aggregate value (at offering prices) as of the Date of Deposit
    of the Bonds  listed under "Schedule  of Investments"  herein,
    and  their  aggregate cost  to the  Trust  are the  same. Such
    offering  prices  were  determined  by  Kenny  S&P  Evaluation
    Services,  a division of J.J. Kenny Co., Inc., as of the close
    of business on the business day prior to the Date of  Deposit.
    (See "HOW WAS THE PRICE OF THE BONDS DETERMINED AT THE DATE OF
    DEPOSIT?"  in Part  B of this  Prospectus.) Insurance coverage
    providing for the timely payment,  when due, of all  principal
    of and interest on certain of the Bonds in a Traditional Trust
    may  have been  obtained by  the issuers  of such  Bonds. Such
    insurance, if any, does not guarantee the market value of  the
    Bonds or the value of the Units. Both the bid and the offering
    prices  of the underlying  Bonds and of  the Units may include
    value attributable to such policies of insurance, if any.
(3) The  Trust (and  therefore  Unitholders) will  bear all  or  a
    portion  of its  estimated organizational costs  which will be
    deferred and  amortized  over  five years  from  the  Date  of
    Deposit.
(4)  Representing, as set forth in  "WHAT IS ACCRUED INTEREST?" in
    Part B of this  Prospectus, advancement by  the Trustee of  an
    amount  equal to the  accrued Bond interest as  of the Date of
    Deposit.
(5)  Aggregate  Public  Offering   Price  (exclusive  of   accrued
    interest)  computed  as set  forth  under "HOW  IS  THE PUBLIC
    OFFERING PRICE DETERMINED?" in Part B of this Prospectus.
(6) The  gross  underwriting commission  of  4.90% of  the  Public
    Offering  Price has been calculated on the assumption that the
    Units sold are not subject to a reduction of sales charge  for
    quantity purchases. In single transactions involving 500 Units
    or  more, the sales charge is reduced. (See "HOW IS THE PUBLIC
    OFFERING PRICE DETERMINED?" in Part B of this Prospectus.)
</TABLE>
    
 
                                     5 of 6
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
TO THE BOARD OF DIRECTORS OF JOHN  NUVEEN & CO. INCORPORATED AND UNITHOLDERS  OF
MARYLAND TRADITIONAL TRUST 310:
 
   
    We  have audited the accompanying statement of condition and the schedule of
investments at  date of  deposit (included  in  Part A  of this  Prospectus)  of
Maryland  Traditional  Trust 310  (contained  in Nuveen  Tax-Exempt  Unit Trust,
Series 823),  as  of September  7,  1995.  These financial  statements  are  the
responsibility  of the Sponsor.  Our responsibility is to  express an opinion on
these financial statements based on our audit.
    
 
    We conducted  our  audit  in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the amounts and disclosures in the financial statements. Our procedures included
confirmation of the irrevocable letter of credit arrangement for the purchase of
securities,   described  in  Note   (1)  to  the   statement  of  condition,  by
correspondence with the Trustee. An audit also includes assessing the accounting
principles used  and significant  estimates  made by  the  Sponsor, as  well  as
evaluating  the overall  financial statement  presentation. We  believe that our
audit provides a reasonable basis for our opinion.
 
   
    In our  opinion, the  statement of  condition and  the related  schedule  of
investments at date of deposit referred to above present fairly, in all material
respects,  the  financial  position  of Maryland  Traditional  Trust  310  as of
September 7, 1995, in conformity with generally accepted accounting principles.
    
 
                                                             ARTHUR ANDERSEN LLP
 
   
Chicago, Illinois,
September 7, 1995.
    
 
                                     6 of 6
<PAGE>
                                           A
   
NUVEEN                  NUVEEN COLORADO INSURED TRUST 60
                   (NUVEEN TAX EXEMPT UNIT TRUSTS SERIES 823)
    
                                                CUSIP NUMBERS:
                                                   Monthly:           6706E9 317
                                                   Quarterly:         6706E9 325
                                                   Semi-Annually:     6706E9 333
 
   
            PROSPECTUS--PART A (SPECIFIC TERMS) -- SEPTEMBER 7, 1995
              THIS PART A OF THE PROSPECTUS MAY NOT BE DISTRIBUTED
              UNLESS ACCOMPANIED BY THE PART B OF THE PROSPECTUS.
     BOTH PARTS OF THE PROSPECTUS SHOULD BE RETAINED FOR FUTURE REFERENCE.
    
 
    Colorado Insured Trust, Series 60 (the "Colorado Insured Trust") consists of
a  portfolio of interest-bearing obligations issued by or on behalf of the State
of Colorado, certain  United  States Territories or authorities and political 
subdivisions thereof which,  in the  opinion  of
recognized  bond counsel  to the  issuing authorities,  provide income  which is
exempt from Federal income tax and Colorado  income tax, to the extent indicated
below.
 
    The  objectives of the  Trust are income exempt from Federal income tax and 
state income taxes, and conservation of capital. The objectives are, of
course, dependent upon the  continuing ability of  the issuers, obligors  and/or
insurers to meet their respective obligations.
 
    The  Portfolio of Colorado Insured Trust 60 consists of 8 obligations issued
by entities located in Colorado and  one obligation issued by an entity  located
in  the Territory  of Puerto  Rico. The  Bonds in  the Trust  are either general
obligations of the governmental entity issuing them and are backed by the taxing
power thereof or are payable as to  principal and interest from the income of  a
specific  project or authority  and are not  supported by the  issuer's power to
levy taxes. The sources of payment for the Bonds, other than general  obligation
Bonds and Bonds escrowed to maturity or optional redemption date, are divided as
follows:
 
<TABLE>
<CAPTION>
 NUMBER OF                                                                                    PORTFOLIO
  ISSUES                                   PURPOSE OF ISSUE                                  PERCENTAGE
- -----------  -----------------------------------------------------------------------------  -------------
<C>          <S>                                                                            <C>
     2       Health Care Facility Revenue                                                          29%
     1       Dedicated-Tax Supported Revenue                                                       15
     1       Transportation Facility Revenue                                                       14
     1       Combination Utility Revenue                                                           14
     1       Water and/or Sewer Revenue                                                             8
     1       College and University Revenue                                                         6
</TABLE>
 
    Approximately  33.0% of the  aggregate principal amount of  the Bonds in the
Trust (accounting for approximately 31.3% of the aggregate offering price of the
Bonds) are original issue discount bonds. See "RISK FACTORS" for a discussion of
the characteristics of such obligations and of the risks associated therewith.
 
    All of the Bonds in  the Colorado Insured Trust  are covered by policies  of
insurance  obtained from the MBIA  Insurance Corporation guaranteeing payment of
principal and interest when due. As a result of such insurance, the Bonds in the
Trust have received  a rating of  "Aaa" by Moody's   and
both the Bonds in the Trust and the Units of the Trust have received a rating of
"AAA" by Standard & Poor's.
 
    For  a discussion of the  risks associated with investments  in the bonds of
various issuers, see "RISK FACTORS" in Part B of this Prospectus.
   
                             ESSENTIAL INFORMATION
                 REGARDING THE NUVEEN COLORADO INSURED TRUST 60
      ON THE BUSINESS DAY PRIOR TO THE DATE OF DEPOSIT, SEPTEMBER 6, 1995
    
          Sponsor and Evaluator........ John Nuveen & Co. Incorporated
          Trustee...................... The Chase Manhattan Bank, N.A.
                ------------------------------------------------
 
The income, expense and distribution data  set forth below have been  calculated
for   Unitholders  receiving  monthly,  quarterly  or  semi-annual  distribution
options.
 
<TABLE>
<S>                                                   <C>
Principal Amount of Bonds in Trust..................  $     3,500,000
Number of Units.....................................           35,000
Fractional Undivided Interest in Trust Per Unit.....         1/35,000
Public Offering Price--Less than 500 Units
    Aggregate Offering Price of Bonds in Trust......  $     3,337,208
    Divided by Number of Units......................  $         95.35
    Plus Sales Charge 4.9% (5.152% of the Aggregate
     Offering Price of the Bonds per Unit)..........  $          4.91
    Public Offering Price Per Unit(1)...............  $        100.26
Redemption Price Per Unit (exclusive of accrued
  interest).........................................  $         94.88
Sponsor's Initial Repurchase Price Per Unit
  (exclusive of accrued interest)...................  $         95.35
Excess of Public Offering Price Per Unit over
  Redemption Price Per Unit.........................  $          5.38
Excess of Public Offering Price Per Unit over
  Sponsor's Repurchase Price Per Unit...............  $          4.91
Average Maturity of Bonds in the Trust(2)...........       25.1 years
</TABLE>
 
- ----------
THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
EXCHANGE  COMMISSION OR ANY  STATE SECURITIES COMMISSION  NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE 
ACCURACY OR ADEQUACY  OF THIS PROSPECTUS. ANY REPRESENTATION  TO
THE CONTRARY IS A CRIMINAL OFFENSE.
 
                                     1 of 7
<PAGE>
                         ESSENTIAL INFORMATION (CONT.)
 
   
<TABLE>
<CAPTION>
                                                  MONTHLY        QUARTERLY      SEMI-ANNUAL
                                                -----------     -----------     -----------
  <S>                                           <C>             <C>             <C>
  Calculation of Estimated Net Annual
    Interest Income Per Unit
      Annual Interest Income(3)............        $ 5.5121        $ 5.5121       $ 5.5121
      Less Estimated Annual Expense........         $ .2435         $ .2115        $ .1925
                                                -----------     -----------     -----------
      Estimated Net Annual Interest
        Income(4)..........................        $ 5.2686        $ 5.3006       $ 5.3196
  Daily Rate of Accrual Per Unit...........        $ .01463        $ .01472       $ .01477
  ESTIMATED CURRENT RETURN(5)..............            5.25%           5.29%          5.31 %
  ESTIMATED LONG TERM RETURN(5)............            5.29%           5.32%          5.34 %
  Trustee's Annual Fees(6).................        $ 1.5467        $ 1.2267       $ 1.0367
Date of Deposit..................................................................................September 7, 1995
Settlement Date.................................................................................September 12, 1995
Mandatory Termination Date....................................See "OTHER INFORMATION" in Part B of this Prospectus
Minimum Value of Each Trust...................................See "OTHER INFORMATION" in Part B of this Prospectus
Sponsor's Annual Evaluation Fee.........................................$0.17 per $1,000 principal amount of Bonds
Estimated Annual Organizational Expenses(7).......................................................$.03143 per Unit
- ----------
 
<FN>
Evaluations  for purpose of sale,  purchase or redemption of  Units are made as of  4 p.m. Eastern time  on the business day next
following receipt of an order by the Sponsor  or Trustee. (See "HOW IS THE PUBLIC  OFFERING PRICE DETERMINED?" in Part B of  this
Prospectus.)
(1)  Units are offered at the Public  Offering Price plus accrued interest from the  preceding Record Date to, but not including,
    the date of settlement (normally three business days after purchase). The Date of Deposit of the Fund has been designated  as
    the  First Record  Date for all  plans of  distribution of the  Trust and,  accordingly, for Units  purchased on  the Date of
    Deposit, $.07 of accrued interest to the  Settlement Date will be added to the  Public Offering Price. (See "WHAT IS  ACCRUED
    INTEREST?" in Part B of this Prospectus.)
(2) The Average Maturity of Bonds in the Trust is calculated based upon the stated maturities of the Bonds in the Trust (or, with
    respect  to Bonds for which funds or securities have been placed in  escrow to redeem such Bonds on a stated call date, based
    upon such call date). The Average Maturity of Bonds in the  Trust may increase or decrease from time to time as Bonds  mature
    or are called or sold.
(3) Assumes delivery of all Bonds. (See "COMPOSITION OF TRUSTS" appearing in Part B of this Prospectus.) Interest income does not
    include  accretion of original issue discount  on "zero coupon" Bonds, Stripped  Obligations or other original issue discount
    Bonds. (See "RISK FACTORS" in Part B of this Prospectus.)
(4) The amount and timing of interest distributions from the  Trust under the various plans of distribution are set forth  below.
    It  is anticipated that the amount of interest  to be distributed per Unit in each  year under each plan of distribution will
    initially be substantially equal to the Estimated Net Annual Interest  Income per Unit for that plan. The amount of  interest
    to  be distributed annually per Unit, will generally change as Bonds are redeemed, mature or are sold or as fees and expenses
    increase or decrease.
(5) Estimated Long Term  Return for the Trust  represents the average  of the yields to  maturity (or call) of  the Bonds in  the
    Trust's  portfolio  calculated in  accordance with  accepted bond  practices and  adjusted to  reflect a  compounding factor,
    expenses and sales charges. Estimated Current Return is computed by  dividing the Net Annual Interest Income per Unit by  the
    Public  Offering Price,  and in  contrast to  Estimated Long  Term Return  does not  reflect the  amortization of  premium or
    accretion of discount, if any. For more information see  "WHAT ARE ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT  RETURN?"
    in Part B of this Prospectus.
(6)  Each Trustee annual fee is  per $1,000 principal amount of the  underlying Bonds in the Trust  for that portion of the Trust
    that represents a particular plan of distribution.
(7) The Trust (and therefore Unit holders) will bear all  or a portion of its organizational costs (including costs of  preparing
    the  registration statements,  the trust indenture  and other  closing documents, registering  Units with  the Securities and
    Exchange Commission and states, the initial audit of the Trust portfolio, legal fees and the initial fees and expenses of the
    Trustee but not including the  expenses incurred in the  printing of preliminary and final prospectuses,  and expenses 
    incurred in  the
    preparation and printing of brochures and other advertising materials and any other selling expenses) as is common for mutual
    funds.  Total  organizational expenses  will be  amortized over  a five  year period.  See "WHAT  ARE NORMAL  TRUST OPERATING
    EXPENSES?" in Part B and  "Statement of Condition." Historically,  the sponsors of unit investment  trusts have paid all  the
    costs of establishing such trusts.
</TABLE>
    
 
                                     2 of 7
<PAGE>
                             INTEREST DISTRIBUTION
 
    Details  of interest  distributions per Unit  of the  Colorado Insured Trust
under the various plans appear in  the following table based upon estimated  Net
Annual Interest Income at the Date of Deposit:
 
<TABLE>
<CAPTION>
                                                                                                          NORMAL
                                                                                                      DISTRIBUTIONS
                                                  1995                             1996                  PER YEAR
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................       10/1           11/1            2/1            5/1
Distribution Date.....................      10/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3511(1)                                                  $  5.2686
                                                          --------  $.4389 every month  --------
Quarterly Distribution Plan...........  $   .3511(1)   $   .4416(2)   $  1.3248      $  1.3248        $  5.3006
Semi-Annual Distribution Plan.........  $   .3511(1)   $   .4431(3)                  $  2.6586        $  5.3196
- --------------------------------------------------------------------------------------------------------------------
<FN>
 *  Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
   August 1 and November 1. Record Dates for monthly distributions are the first day of each month. Distribution Dates under each
   distribution plan are the fifteenth day of the month in which the respective Record Date occurred. For additional  information
   see "WHEN ARE DISTRIBUTIONS MADE TO UNITHOLDERS?" in Part B of this Prospectus.
(1)  The first distribution will be paid to all Unitholders,  regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The  second distribution  under the  quarterly  distribution plan  represents a  1-month distribution;  subsequent  quarterly
    distributions will be regular 3-month distributions.
(3)  The second distribution  under the semi-annual distribution  plan represents a  1-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
                             COLORADO RISK FACTORS
 
    The financial condition  of the  State of  Colorado is  affected by  various
national,   economic,   social  and   environmental  policies   and  conditions.
Additionally, Constitutional and statutory limitations imposed on the State  and
its  local governments concerning taxes, bond indebtedness and other matters may
constrain the revenue-generating capacity of the State and its local governments
and, therefore,  the  ability of  the  issuers of  the  Bonds to  satisfy  their
obligations.   Historically,  the  State  has  experienced  significant  revenue
shortfalls. A recently passed,  but somewhat ambiguous Constitutional  Amendment
requires  voter approval prior to tax increases, creation of debt, or until levy
or valuation for assessment ratio increases. The Amendment also limits increases
in government spending and property tax revenues to specified percentages.
 
    The economic vitality of the State  and its various regions and,  therefore,
the  ability of the  State and its  local governments to  satisfy the Bonds, are
affected by numerous factors. The economy of the State continues to be dependent
on tourism and its position  as a transportation hub.  These sectors tend to  be
cyclical.
 
    The State is a party to numerous lawsuits in which an adverse final decision
could materially affect the State's governmental operations and consequently its
ability to pay debt service on its obligations.
 
    Further  information concerning Colorado  risk factors may  be obtained upon
written or telephonic request to the Trustee as described in "OTHER  INFORMATION
- -- Supplemental Information" appearing in Part B of this Prospectus.
 
                       TAX STATUS--COLORADO INSURED TRUST
 
    For  a discussion  of the  Federal tax status  of income  earned on Colorado
Insured Trust Units, see "WHAT IS THE TAX STATUS OF UNITHOLDERS?" in Part B of 
this Prospectus.
 
    In the opinion of Sherman &  Howard L.L.C., special Colorado counsel to  the
Series, under existing law:
 
        A  Colorado Insured Trust will consist  of obligations which were issued
    by the State  of Colorado  or its political  subdivisions or  by the  United
    States or possessions of the United States including Puerto Rico, the Virgin
    Islands and Guam ("Colorado Bonds").
 
        Because  Colorado income tax  law is based  upon the Federal  law and in
    light of the opinion  of Chapman and Cutler,  the Colorado Insured Trust  is
    not  an association taxable as a corporation for purposes of Colorado income
    taxation.
 
        With respect  to  Colorado  Unitholders, in  view  of  the  relationship
    between  Federal  and  Colorado  tax computations  described  above  and the
    opinion of Chapman and Cutler referred to above:
 
        Each Colorado Unitholder will be treated as owning a share of each asset
    of the  Colorado Insured  Trust for  Colorado income  tax purposes,  in  the
    proportion  that the number of Units of such  Trust held by him bears to the
    total number of  outstanding Units of  the Colorado Insured  Trust, and  the
    income of the Colorado Insured Trust will therefore be treated as the income
    of each Colorado Unitholder under Colorado law in the proportion described.
 
                                     3 of 7
<PAGE>
        Interest  on Colorado Bonds that would not be subject to Colorado income
    tax or Colorado  alternative minimum tax  when paid directly  to a  Colorado
    Unitholder will not be subject to Colorado income tax or alternative minimum
    tax  when  received by  the Colorado  Insured Trust  and attributed  to such
    Colorado Unitholder and when distributed to such Colorado Unitholder.
 
        Any proceeds paid under an insurance policy issued to the issuer of  the
    Colorado  Bonds involved, to the Depositor  prior to deposit of the Colorado
    Bonds in the Colorado Insured Trust, or to the Colorado Insured Trust, which
    proceeds represent maturing interest on  defaulted Colorado Bonds and  which
    proceeds  would not be subject to Colorado income tax or alternative minimum
    tax when  paid directly  to a  Colorado Unitholder  will not  be subject  to
    Colorado  income and alternative  minimum tax when  received by the Colorado
    Insured  Trust  and  attributed  to   such  Colorado  Unitholder  and   when
    distributed to such Colorado Unitholder.
 
        Each  Colorado Unitholder will realize gain  or loss taxable in Colorado
    when the Colorado  Insured Trust  disposes of  a Colorado  Bond (whether  by
    sale,  exchange, redemption  or payment  at maturity)  or when  the Colorado
    Unitholder redeems or sells Units at a price that differs from original cost
    as adjusted for  amortization of bond  discount or premium  and other  basis
    adjustments (including any basis reduction that may be required to reflect a
    Colorado  Unitholder's share of interest, if any, accruing on Colorado Bonds
    during the interval  between the Colorado  Unitholder's settlement date  and
    the date such Colorado Bonds are delivered to the Colorado Insured Trust, if
    later).
 
        Tax cost reduction requirements relating to amortization of bond premium
    may, under some circumstances, result in Colorado Unitholders realizing gain
    taxable  in Colorado  when their  Units are sold  or redeemed  for an amount
    equal to or less than their original cost.
 
        If  interest  on  indebtedness  incurred  or  continued  by  a  Colorado
    Unitholder to purchase Units in the Colorado Insured Trust is not deductible
    for  Federal income  tax purposes,  it will  not be  deductible for Colorado
    income tax purposes.
 
                                     4 of 7
<PAGE>
   
                        NUVEEN COLORADO INSURED TRUST 60
                   (NUVEEN TAX-EXEMPT UNIT TRUST SERIES 823)
         SCHEDULE OF INVESTMENTS AT THE DATE OF DEPOSIT, SEPTEMBER 7, 1995
    
 
   
<TABLE>
<CAPTION>
                                                                                          Ratings(3)           Trustee's
                                                                      Optional       ---------------------   Determination
 Aggregate        Name of Issuer and Title of Issue Represented      Redemption       Standard                of Offering
  Principal        by Sponsor's Contracts to Purchase Bonds(1)      Provisions(2)     & Poor's    Moody's        Price
<C>          <C> <S>                                              <C>                <C>         <C>        <C>
- ---------------------------------------------------------------------------------------------------------------------------
$   200,000      Colorado Postsecondary Educational Facilities       2005 at 100        AAA         Aaa     $       202,240
                   Authority, Revenue Bonds (The Auraria
                   Foundation Project), Series 1995, 6.00% Due
                   9/1/15. (When issued.)
    120,000      Adams County School District No. 1 (Mapleton        2003 at 100        AAA         Aaa             111,196
                   Public Schools), Adams County, Colorado,
                   General Obligation Refunding Bonds, Series
                   1993, 5.25% Due 6/1/17.
    525,000      E-470 Public Highway Authority, Arapahoe            2005 at 103        AAA         Aaa
                   County, Colorado, Capital Improvement Trust
                   Fund Highway Revenue Bonds (E-470 Project),
                   Vehicle Registration Fee Bonds,
                 275M-6.05% Due 8/31/15,                                                                            279,947
                 250M-6.15% Due 8/31/26.                                                                            255,608
    500,000      City of Colorado Springs, Colorado, Utilities       2004 at 100        AAA         Aaa             450,185
                   System Improvement and Refunding Revenue
                   Bonds, Series 1994A, 5.125% Due 11/15/23.
    500,000      City and County of Denver, Colorado, Airport        2005 at 102        AAA         Aaa             487,500
                   System Revenue Bonds, Series 1995A, 5.70% Due
                   11/15/25.
    500,000      City and County of Denver, Colorado, Hospital       2003 at 102        AAA         Aaa             505,620
                   Revenue Bonds (The Children's Hospital
                   Association Project), Series 1993, 6.00% Due
                   10/1/15.
    500,000      City and County of Denver, Colorado, Revenue        2003 at 102        AAA         Aaa             438,450
                   Bonds, Series 1994 (Sisters of Charity of
                   Leavenworth Health Services Corporation),
                   5.00% Due 12/1/23. (Original issue discount
                   bonds delivered on or about February 2, 1994
                   at a price of 94.00% of principal amount.)
    275,000      Metro Wastewater Reclamation District,              2003 at 100        AAA         Aaa             245,861
                   Colorado, Sewer Refunding Bonds, Series
                   1993B, 4.75% Due 4/1/12. (Original issue
                   discount bonds delivered on or about December
                   29, 1993 at a price of 94.39% of principal
                   amount.)
    380,000      Commonwealth of Puerto Rico, Public Improvement   2005 at 101 1/2      AAA         Aaa             360,601
                   Bonds of 1995 (General Obligation Bonds.),
                   5.375% Due 7/1/22. (Original issue discount
                   bonds delivered on or about May 4, 1995 at a
                   price of 93.916% of principal amount.)
- -----------                                                                                                 ---------------
$ 3,500,000                                                                                                 $     3,337,208
- -----------                                                                                                 ---------------
- -----------                                                                                                 ---------------
</TABLE>
    
 
- ------------
 
    (1) The Sponsor's contracts to purchase  Bonds were entered into during  the
period  from September 5, 1995 to September 6, 1995. Other information regarding
the Bonds in the Trust on the initial Date of Deposit is as follows:
 
<TABLE>
<CAPTION>
                                             ANNUAL
                                 PROFIT     INTEREST
                    COST TO    (OR LOSS)   INCOME TO   BID PRICE
       TRUST        SPONSOR    TO SPONSOR    TRUST      OF BONDS
  ---------------  ----------  ----------  ----------  ----------
  <S>              <C>         <C>         <C>         <C>
  COLORADO
  INSURED TRUST
  60.............  $3,317,098  $  20,110   $ 192,925   $3,320,645
</TABLE>
 
In addition,  the difference  between the  Trustee's determination  of  Offering
Price  and Bid Price (as a percentage of principal amount) is .47%. Neither cost
to Sponsor nor  profit (or  loss) to  Sponsor reflects  underwriting profits  or
losses  received  or  incurred  by  the  Sponsor  through  its  participation in
underwriting syndicates.  The Sponsor  did not  participate as  either the  sole
underwriter  or as a manager or member of a syndicate that acted as the original
underwriter of any of the Bonds.
 
    (2) The Bonds are first subject to optional redemption in the years, and  at
the  prices,  shown. Unless  otherwise indicated,  the  Bonds, except  for Bonds
issued at a  substantial original  issue discount, are  redeemable at  declining
prices  (but not below  par value) in subsequent  years. Original issue discount
bonds, including zero coupon bonds, are generally redeemable at prices based  on
the  issue  price  plus  the  amount  of  original  issue  discount  accreted to
redemption plus, if applicable, some premium,  the amount of which will  decline
in  subsequent years. The Bonds  may also be subject  to sinking fund redemption
without premium  prior to  the dates  shown.  Certain Bonds  may be  subject  to
redemption  without  premium prior  to  the date  shown  pursuant to  special or
mandatory call provisions specified in  the instruments setting forth the  terms
and  provisions of  such Bonds.  See "COMPOSITION OF  TRUSTS", "WHAT  IS THE TAX
STATUS OF UNITHOLDERS?" and "RISK FACTORS" in Part B of this Prospectus.
 
    (3) All the  Bonds in the  Insured Trusts,  as insured by  the Insurer,  are
rated AAA by Standard & Poor's and Aaa by Moody's.  The insurance obtained by 
the Trust guarantees the payment of interest and
principal on  the  Bonds  when due  but  does  not cover  certain  market  risks
associated  with fixed income securities  such as accelerated payments, premiums
payable on mandatory redemptions or interest  rate risks. (See "WHY AND HOW  ARE
THE BONDS INSURED?" in Part B of this Prospectus and "Description of Ratings" in
the Information Supplement.)
 
                                     5 of 7
<PAGE>
                             Statement of Condition
 
                        NUVEEN COLORADO INSURED TRUST 60
 
   
                   (Nuveen Tax-Exempt Unit Trust, Series 823)
    
 
   
                            AS OF SEPTEMBER 7, 1995
    
 
   
<TABLE>
<S>                                                 <C>
    TRUST PROPERTY
Sponsor's contracts to purchase Tax-Exempt Bonds,
  backed by an irrevocable letter of
  credit(1)(2)....................................  $    3,337,208
Accrued interest to September 7, 1995 on
  underlying Bonds(1).............................          51,458
Organizational costs(3)...........................           5,500
                                                    --------------
            Total.................................  $    3,394,166
                                                    --------------
                                                    --------------
   LIABILITIES AND INTEREST OF UNITHOLDERS
LIABILITIES:
    Accrued interest to September 7, 1995 on
     underlying Bonds(4)..........................  $       51,458
    Accrued organizational costs(3)...............           5,500
                                                    --------------
            Total.................................  $       56,958
                                                    --------------
                                                    --------------
INTEREST OF UNITHOLDERS:
    Units of fractional undivided interest
     outstanding (35,000)
      Cost to investors(5)........................  $    3,509,141
        Less: Gross underwriting commission(6)....        (171,933)
                                                    --------------
    Net amount applicable to investors............  $    3,337,208
                                                    --------------
            Total.................................  $    3,394,166
                                                    --------------
                                                    --------------
- ------------
(1)  Represented by  contracts to purchase  Tax-Exempt Bonds which
    include "when issued" or  "regular way" or "delayed  delivery"
    contracts  for which an irrevocable letter of credit issued by
    a major commercial bank has been deposited with the Trustee on
    the Date of Deposit. The amount  of such letter of credit  and
    any  cash  deposited  exceeds  the  amount  necessary  for the
    purchase of the  Bonds plus  accrued interest to  the Date  of
    Deposit. At the Date of Deposit, Bonds may have been delivered
    to  the Sponsor  pursuant to  certain of  these contracts; the
    Sponsor has assigned to the  Trustee all of its rights,  title
    and interest in and to such Bonds.
(2) Aggregate value (at offering prices) as of the Date of Deposit
    of  the Bonds  listed under "Schedule  of Investments" herein,
    and their  aggregate cost  to  the Trust  are the  same.  Such
    offering  prices  were  determined  by  Kenny  S&P  Evaluation
    Services, a division of J.J. Kenny Co., Inc., as of the  close
    of  business on the business day prior to the Date of Deposit.
    (See "HOW WAS THE PRICE OF THE BONDS DETERMINED AT THE DATE OF
    DEPOSIT?" in Part  B of this  Prospectus.) Insurance  coverage
    providing  for the timely payment,  when due, of all principal
    of and interest  on the  Bonds in  an Insured  Trust has  been
    obtained  by the Sponsor or by the issuers of such Bonds. Such
    insurance does not guarantee the market value of the Bonds  or
    the  value of the Units. Both  the bid and the offering prices
    of the underlying  Bonds and  of the Units  may include  value
    attributable to such policies of insurance.
(3)  The  Trust (and  therefore Unitholders)  will  bear all  or a
    portion of its  estimated organizational costs  which will  be
    deferred  and  amortized  over  five years  from  the  Date of
    Deposit.
(4) Representing, as set forth  in "WHAT IS ACCRUED INTEREST?"  in
    Part  B of this  Prospectus, advancement by  the Trustee of an
    amount equal to the  accrued Bond interest as  of the Date  of
    Deposit.
(5)   Aggregate  Public  Offering   Price  (exclusive  of  accrued
    interest) computed  as  set forth  under  "HOW IS  THE  PUBLIC
    OFFERING PRICE DETERMINED?" in Part B of this Prospectus.
(6)  The  gross underwriting  commission  of 4.90%  of  the Public
    Offering Price has been calculated on the assumption that  the
    Units  sold are not subject to a reduction of sales charge for
    quantity purchases. In single transactions involving 500 Units
    or more, the sales charge is reduced. (See "HOW IS THE  PUBLIC
    OFFERING PRICE DETERMINED?" in Part B of this Prospectus.)
</TABLE>
    
 
                                     6 of 7
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
TO  THE BOARD OF DIRECTORS OF JOHN  NUVEEN & CO. INCORPORATED AND UNITHOLDERS OF
COLORADO INSURED TRUST 60:
 
   
    We have audited the accompanying statement of condition and the schedule  of
investments  at  date of  deposit (included  in  Part A  of this  Prospectus) of
Colorado Insured Trust  60 (contained  in Nuveen Tax-Exempt  Unit Trust,  Series
823), as of September 7, 1995. These financial statements are the responsibility
of  the Sponsor. Our responsibility is to  express an opinion on these financial
statements based on our audit.
    
 
    We conducted  our  audit  in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the amounts and disclosures in the financial statements. Our procedures included
confirmation of the irrevocable letter of credit arrangement for the purchase of
securities,   described  in  Note   (1)  to  the   statement  of  condition,  by
correspondence with the Trustee. An audit also includes assessing the accounting
principles used  and significant  estimates  made by  the  Sponsor, as  well  as
evaluating  the overall  financial statement  presentation. We  believe that our
audit provides a reasonable basis for our opinion.
 
   
    In our  opinion, the  statement of  condition and  the related  schedule  of
investments at date of deposit referred to above present fairly, in all material
respects, the financial position of Colorado Insured Trust 60 as of September 7,
1995, in conformity with generally accepted accounting principles.
    
 
                                                             ARTHUR ANDERSEN LLP
 
   
Chicago, Illinois,
September 7, 1995.
    
 
                                     7 of 7
<PAGE>
                                           A
   
NUVEEN                  NUVEEN MICHIGAN INSURED TRUST 62
                   (NUVEEN TAX EXEMPT UNIT TRUSTS SERIES 823)
    
                                                CUSIP NUMBERS:
                                                   Monthly:           67095E 377
                                                   Quarterly:         67095E 385
                                                   Semi-Annually:     67095E 393
 
   
            PROSPECTUS--PART A (SPECIFIC TERMS) -- SEPTEMBER 7, 1995
              THIS PART A OF THE PROSPECTUS MAY NOT BE DISTRIBUTED
              UNLESS ACCOMPANIED BY THE PART B OF THE PROSPECTUS.
     BOTH PARTS OF THE PROSPECTUS SHOULD BE RETAINED FOR FUTURE REFERENCE.
    
 
    Michigan Insured Trust, Series 62 (the "Michigan Insured Trust") consists of
a  portfolio of interest-bearing obligations issued by or on behalf of the State
of Michigan, certain  United  States Territories or authorities and political
subdivisions thereof which,  in the  opinion  of
recognized  bond counsel  to the  issuing authorities,  provide income  which is
exempt from Federal income tax and Michigan  income, intangible and local taxes,
to the extent indicated below.
 
    The  objectives of the  Trust are income exempt from Federal income tax, 
state income taxes and state intangible taxes, and conservation of capital.
The objectives are, of
course, dependent upon the  continuing ability of  the issuers, obligors  and/or
insurers to meet their respective obligations.
 
    The  Portfolio of Michigan Insured Trust 62 consists of 8 obligations issued
by entities located in Michigan and  one obligation issued by an entity  located
in  the Territory  of Puerto  Rico. The  Bonds in  the Trust  are either general
obligations of the governmental entity issuing them and are backed by the taxing
power thereof or are payable as to  principal and interest from the income of  a
specific  project or authority  and are not  supported by the  issuer's power to
levy taxes. The sources of payment for the Bonds, other than general  obligation
Bonds and Bonds escrowed to maturity or optional redemption date, are divided as
follows:
 
<TABLE>
<CAPTION>
 NUMBER OF                                                                                    PORTFOLIO
  ISSUES                                   PURPOSE OF ISSUE                                  PERCENTAGE
- -----------  -----------------------------------------------------------------------------  -------------
<C>          <S>                                                                            <C>
     2       Health Care Facility Revenue                                                          25%
     1       College and University Revenue                                                        14
     1       Miscellaneous Revenue                                                                  6
</TABLE>
 
    Approximately  30.6% of the  aggregate principal amount of  the Bonds in the
Trust (accounting for approximately 27.2% of the aggregate offering price of the
Bonds) are original issue discount obligations. Certain of these original  issue
discount  obligations, amounting to  5.7% of the  aggregate principal amount and
1.8% of  the aggregate  offering price  of the  Bonds in  the Trust,  are  "zero
coupon"  bonds. See  "RISK FACTORS" for  a discussion of  the characteristics of
such obligations and of the risks associated therewith.
 
    All of the Bonds in  the Michigan Insured Trust  are covered by policies  of
insurance  obtained from the MBIA  Insurance Corporation guaranteeing payment of
principal and interest when due. As a result of such insurance, the Bonds in the
Trust have received  a rating of  "Aaa" by Moody's  and
both the Bonds in the Trust and the Units of the Trust have received a rating of
"AAA" by Standard & Poor's.
 
    For  a discussion of the  risks associated with investments  in the bonds of
various issuers, see "RISK FACTORS" in Part B of this Prospectus.
   
                             ESSENTIAL INFORMATION
                 REGARDING THE NUVEEN MICHIGAN INSURED TRUST 62
      ON THE BUSINESS DAY PRIOR TO THE DATE OF DEPOSIT, SEPTEMBER 6, 1995
    
          Sponsor and Evaluator........ John Nuveen & Co. Incorporated
          Trustee...................... The Chase Manhattan Bank, N.A.
                ------------------------------------------------
 
The income, expense and distribution data  set forth below have been  calculated
for   Unitholders  receiving  monthly,  quarterly  or  semi-annual  distribution
options.
 
<TABLE>
<S>                                                   <C>
Principal Amount of Bonds in Trust..................  $     3,500,000
Number of Units.....................................           35,000
Fractional Undivided Interest in Trust Per Unit.....         1/35,000
Public Offering Price--Less than 500 Units
    Aggregate Offering Price of Bonds in Trust......  $     3,293,641
    Divided by Number of Units......................  $         94.10
    Plus Sales Charge 4.9% (5.152% of the Aggregate
     Offering Price of the Bonds per Unit)..........  $          4.85
    Public Offering Price Per Unit(1)...............  $         98.95
Redemption Price Per Unit (exclusive of accrued
  interest).........................................  $         93.67
Sponsor's Initial Repurchase Price Per Unit
  (exclusive of accrued interest)...................  $         94.10
Excess of Public Offering Price Per Unit over
  Redemption Price Per Unit.........................  $          5.28
Excess of Public Offering Price Per Unit over
  Sponsor's Repurchase Price Per Unit...............  $          4.85
Average Maturity of Bonds in the Trust(2)...........       23.5 years
</TABLE>
 
- ----------
THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
EXCHANGE  COMMISSION OR ANY  STATE SECURITIES COMMISSION  NOR HAS THE SECURITIES
AND EXCHANGE  COMMISSION OR  ANY  STATE SECURITIES  COMMISSION PASSED  UPON  THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
                                     1 of 7
<PAGE>
                         ESSENTIAL INFORMATION (CONT.)
 
   
<TABLE>
<CAPTION>
                                                  MONTHLY        QUARTERLY      SEMI-ANNUAL
                                                -----------     -----------     -----------
  <S>                                           <C>             <C>             <C>
  Calculation of Estimated Net Annual
    Interest Income Per Unit
      Annual Interest Income(3)............        $ 5.3706        $ 5.3706       $ 5.3706
      Less Estimated Annual Expense........         $ .2407         $ .2087        $ .1897
                                                -----------     -----------     -----------
      Estimated Net Annual Interest
        Income(4)..........................        $ 5.1299        $ 5.1619       $ 5.1809
  Daily Rate of Accrual Per Unit...........        $ .01424        $ .01433       $ .01439
  ESTIMATED CURRENT RETURN(5)..............            5.19%           5.22%          5.24 %
  ESTIMATED LONG TERM RETURN(5)............            5.30%           5.33%          5.35 %
  Trustee's Annual Fees(6).................        $ 1.5413        $ 1.2213       $ 1.0313
Date of Deposit..................................................................................September 7, 1995
Settlement Date.................................................................................September 12, 1995
Mandatory Termination Date....................................See "OTHER INFORMATION" in Part B of this Prospectus
Minimum Value of Each Trust...................................See "OTHER INFORMATION" in Part B of this Prospectus
Sponsor's Annual Evaluation Fee.........................................$0.17 per $1,000 principal amount of Bonds
Estimated Annual Organizational Expenses(7).......................................................$.02914 per Unit
- ----------
 
BECAUSE CERTAIN OF THE BONDS IN THE TRUST WILL NOT BE DELIVERED TO THE TRUSTEE UNTIL AFTER THE SETTLEMENT DATE FOR
A  PURCHASE OF UNITS MADE ON THE DATE OF DEPOSIT, INTEREST THAT ACCRUES ON THOSE BONDS BETWEEN THE DATE OF DEPOSIT
AND SUCH DELIVERY DATE WILL BE TREATED  AS A RETURN OF PRINCIPAL RATHER  THAN AS TAX-EXEMPT INCOME. THE AMOUNT  OF
ANY  SUCH RETURN  OF PRINCIPAL  IS NOT  INCLUDED IN THE  ANNUAL INTEREST  INCOME SHOWN  ABOVE. FOR  THE TRUST, THE
FOLLOWING SETS FORTH THE LATEST SCHEDULED BOND DELIVERY DATE, THE AMOUNT PER UNIT THAT WILL BE TREATED AS A RETURN
OF PRINCIPAL TO  UNITHOLDERS WHO  PURCHASE ON THE  DATE OF  DEPOSIT, AND THE  ESTIMATED CURRENT  RETURN UNDER  THE
MONTHLY  DISTRIBUTION PLAN AFTER THE FIRST YEAR, ASSUMING THE  PORTFOLIO AND ESTIMATED ANNUAL EXPENSES DO NOT VARY
FROM THAT SET FORTH ABOVE (SEE "WHAT  ARE NORMAL TRUST OPERATING EXPENSES?" IN  PART B OF THIS PROSPECTUS AND  THE
"SCHEDULE  OF INVESTMENTS").  THE ESTIMATED  CURRENT RETURN  AFTER THE FIRST  YEAR WILL  ALSO BE  HIGHER UNDER THE
QUARTERLY AND SEMI-ANNUAL DISTRIBUTION PLANS:
 
                                   LATEST SCHEDULED         PER UNIT         ESTIMATED CURRENT RETURN
                                    DELIVERY DATE     RETURN OF PRINCIPAL      AFTER THE FIRST YEAR
                                  ------------------  --------------------   -------------------------
  MICHIGAN INSURED TRUST........  SEPTEMBER 21, 1995  $           .02                     5.21        %
 
<FN>
Evaluations for purpose of sale,  purchase or redemption of  Units are made as of  4 p.m. Eastern time  on the business day  next
following  receipt of an order by the Sponsor  or Trustee. (See "HOW IS THE PUBLIC  OFFERING PRICE DETERMINED?" in Part B of this
Prospectus.)
(1) Units are offered at the Public  Offering Price plus accrued interest from the  preceding Record Date to, but not  including,
    the  date of settlement (normally three business days after purchase). The Date of Deposit of the Fund has been designated as
    the First Record  Date for  all plans of  distribution of  the Trust and,  accordingly, for  Units purchased on  the Date  of
    Deposit,  $.07 of accrued interest to the  Settlement Date will be added to the  Public Offering Price. (See "WHAT IS ACCRUED
    INTEREST?" in Part B of this Prospectus.)
(2) The Average Maturity of Bonds in the Trust is calculated based upon the stated maturities of the Bonds in the Trust (or, with
    respect to Bonds for which funds or securities have been placed  in escrow to redeem such Bonds on a stated call date,  based
    upon  such call date). The Average Maturity of Bonds in the Trust  may increase or decrease from time to time as Bonds mature
    or are called or sold.
(3) Assumes delivery of all Bonds. (See "COMPOSITION OF TRUSTS" appearing in Part B of this Prospectus.) Interest income does not
    include accretion of original issue discount  on "zero coupon" Bonds, Stripped  Obligations or other original issue  discount
    Bonds. (See "RISK FACTORS" in Part B of this Prospectus.)
(4)  The amount and timing of interest distributions from the Trust  under the various plans of distribution are set forth below.
    It is anticipated that the amount of  interest to be distributed per Unit in  each year under each plan of distribution  will
    initially  be substantially equal to the Estimated Net Annual Interest  Income per Unit for that plan. The amount of interest
    to be distributed annually per Unit, will generally change as Bonds are redeemed, mature or are sold or as fees and  expenses
    increase or decrease.
(5)  Estimated Long Term  Return for the Trust  represents the average of  the yields to  maturity (or call) of  the Bonds in the
    Trust's portfolio  calculated in  accordance with  accepted bond  practices and  adjusted to  reflect a  compounding  factor,
    expenses  and sales charges. Estimated Current Return is computed by  dividing the Net Annual Interest Income per Unit by the
    Public Offering  Price, and  in contrast  to Estimated  Long Term  Return does  not reflect  the amortization  of premium  or
    accretion  of discount, if any. For more information see "WHAT  ARE ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN?"
    in Part B of this Prospectus.
(6) Each Trustee annual fee is  per $1,000 principal amount of  the underlying Bonds in the Trust  for that portion of the  Trust
    that represents a particular plan of distribution.
(7)  The Trust (and therefore Unit holders) will bear all or  a portion of its organizational costs (including costs of preparing
    the registration statements,  the trust  indenture and other  closing documents,  registering Units with  the Securities  and
    Exchange Commission and states, the initial audit of the Trust portfolio, legal fees and the initial fees and expenses of the
    Trustee  but not including the  expenses incurred in the  printing of preliminary and final prospectuses,  and expenses 
    incurred in the
    preparation and printing of brochures and other advertising materials and any other selling expenses) as is common for mutual
    funds. Total  organizational expenses  will be  amortized over  a five  year period.  See "WHAT  ARE NORMAL  TRUST  OPERATING
    EXPENSES?"  in Part B and  "Statement of Condition." Historically, the  sponsors of unit investment  trusts have paid all the
    costs of establishing such trusts.
</TABLE>
    
 
                                     2 of 7
<PAGE>
                             INTEREST DISTRIBUTION
 
    Details of interest  distributions per  Unit of the  Michigan Insured  Trust
under  the various plans appear in the  following table based upon estimated Net
Annual Interest Income at the Date of Deposit:
 
<TABLE>
<CAPTION>
                                                                                                          NORMAL
                                                                                                      DISTRIBUTIONS
                                                  1995                             1996                  PER YEAR
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................       10/1           11/1            2/1            5/1
Distribution Date.....................      10/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3434(1)                                                  $  5.1523
                                                          --------  $.4293 every month  --------
Quarterly Distribution Plan...........  $   .3434(1)   $   .4320(2)   $  1.2960      $  1.2960        $  5.1843
Semi-Annual Distribution Plan.........  $   .3434(1)   $   .4335(3)                  $  2.6010        $  5.2033
- --------------------------------------------------------------------------------------------------------------------
<FN>
 * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May  1,
   August 1 and November 1. Record Dates for monthly distributions are the first day of each month. Distribution Dates under each
   distribution  plan are the fifteenth day of the month in which the respective Record Date occurred. For additional information
   see "WHEN ARE DISTRIBUTIONS MADE TO UNITHOLDERS?" in Part B of this Prospectus.
(1) The first distribution will be paid to all  Unitholders, regardless of the distribution plan selected. Such distribution  may
    be more or less than a regular monthly distribution.
(2)  The  second distribution  under the  quarterly distribution  plan  represents a  1-month distribution;  subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution  under the semi-annual  distribution plan represents a  1-month distribution; subsequent  semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
                             MICHIGAN RISK FACTORS
 
    The  financial condition  of the  State of  Michigan is  affected by various
national,  economic,   social  and   environmental  policies   and   conditions.
Additionally,  Constitutional and statutory limitations imposed on the State and
its local governments concerning taxes, bond indebtedness and other matters  may
constrain the revenue-generating capacity of the State and its local governments
and,  therefore,  the ability  of  the issuers  of  the Bonds  to  satisfy their
obligations.  Historically,  the  State  has  experienced  significant   revenue
shortfalls.  The State's Constitution limits the  amount of total State revenues
that may  be raised  from taxes  and other  sources. State  revenues  (excluding
federal  aid and revenues used for payment  of principal and interest on general
obligation bonds) in any  fiscal year are limited  to a specified percentage  of
State  personal income in the prior calendar  year or average of the prior three
calendar years, whichever is greater. The State may raise taxes in excess of the
limit in emergency situations.
 
    The economic vitality of the State  and its various regions and,  therefore,
the  ability of the  State and its  local governments to  satisfy the Bonds, are
affected by numerous factors. The economy of the State continues to be dependent
on manufacturing, tourism, and  agriculture. These sectors  tend to be  cyclical
and are facing increasing competition from foreign producers.
 
    The State is a party to numerous lawsuits in which an adverse final decision
could materially affect the State's governmental operations and consequently its
ability to pay debt service on its obligations.
 
    All  outstanding general  obligation bonds  of the  State are  rated "AA" by
Standard and Poor's and "A1" by Moody's.
 
    Further information concerning  Michigan risk factors  may be obtained  upon
written  or telephonic request to the Trustee as described in "OTHER INFORMATION
- -- Supplemental Information" appearing in Part B of this Prospectus.
 
                       TAX STATUS--MICHIGAN INSURED TRUST
 
    For a discussion  of the  Federal tax status  of income  earned on  Michigan
Insured Trust Units, see "WHAT IS THE TAX STATUS OF UNITHOLDERS?" in Part B of
this Prospectus. 
 
    In  the opinion  of Dickinson,  Wright, Moon,  Van Dusen  & Freeman, special
Michigan counsel to the Series, under existing law:
 
        The  assets  of  a  Michigan  Trust  will  consist  of  interest-bearing
    obligations  issued by or on behalf of  the State of Michigan, and counties,
    municipalities, authorities  and  political subdivisions  thereof,  and,  in
    limited  instances, bonds issued  by Puerto Rico,  the Virgin Islands, Guam,
    the Northern  Mariana  Islands or  possessions  of the  United  States  (the
    "Michigan Bonds").
 
        Under the Michigan income tax act, the Michigan single business tax act,
    the  Michigan intangibles tax  act, the Michigan city  income tax act (which
    authorizes the only income  tax ordinance that may  be adopted by cities  in
    Michigan),  and  under  the  law which  authorizes  a  "first  class" school
    district to levy an  excise tax upon income,  the Michigan Insured Trust  is
    not  subject  to tax.  The  income of  the  Michigan Insured  Trust  will be
 
                                     3 of 7
<PAGE>
    treated as the income of the Unitholders and be deemed to have been received
    by them when received by the Michigan Insured Trust.
 
        Interest on the Michigan  Bonds in the Michigan  Insured Trust which  is
    exempt  from  Federal income  tax is  exempt from  Michigan state  and local
    income taxes and from the Michigan single business tax. Further, any amounts
    paid  under  the  insurance  representing  maturing  interest  on  defaulted
    obligations  held by the Trustee will  be excludable from Michigan state and
    local income taxes and from the Michigan single business tax if, and to  the
    same  extent as,  such interest  would have been  excludable if  paid by the
    respective issuer.
 
        For purposes  of  the  foregoing Michigan  tax  laws  (corporations  and
    financial  institutions are  not subject to  the Michigan  income tax), each
    Unitholder will  be  considered to  have  received  his pro  rata  share  of
    Michigan  Bond interest when  it is received by  the Michigan Insured Trust,
    and each Unitholder  will have  a taxable  event when  the Michigan  Insured
    Trust  disposes of a Michigan Bond (whether by sale, exchange, redemption or
    payment at maturity) or when the  Unitholder redeems or sells Units. Due  to
    the  requirement that  tax cost be  reduced to reflect  amortization of bond
    premium, under some circumstances a Unitholder may realize taxable gain when
    Units are sold  or redeemed  for an  amount equal  to, or  less than,  their
    original  cost. The tax cost of each  Unit to a Unitholder will be allocated
    for purposes of these Michigan  tax laws in the same  manner as the cost  is
    allocated for Federal income tax purposes.
 
        Pursuant  to the  position of the  Michigan Department of  Treasury in a
    bulletin dated December 19, 1986, reaffirmed  in a bulletin dated March  31,
    1989,  the portion of the Michigan Insured Trust represented by the Michigan
    Bonds will be exempt  from the Michigan Intangibles  Tax. The Department  of
    Treasury  has not indicated a position  with respect to treatment of amounts
    paid under  a policy  of  insurance with  respect  to maturing  interest  on
    defaulted  obligations (which amounts would have  been excludable if paid by
    the respective issuer) for purposes of  determining the income base for  the
    Michigan Intangibles Tax.
 
        If a Unitholder is subject to the Michigan single business tax (i.e., is
    engaged  in a "business activity" as defined in the Michigan single business
    tax act), and has a taxable event  for Federal income tax purposes when  the
    Michigan  Insured Trust sells or exchanges  Michigan Bonds or the Unitholder
    sells or exchanges  Units, such event  may impact on  the adjusted tax  base
    upon  which the single  business tax is  computed. Any capital  gain or loss
    realized from such taxable  event which was included  in the computation  of
    the  Unitholder's Federal taxable income, plus  the portion, if any, of such
    capital gain excluded in such computation and minus the portion, if any,  of
    such  capital loss not  deducted in such  computation for the  year the loss
    occurred, will be included in the  adjusted tax base. The adjusted tax  base
    of  any person  other than  a corporation  is affected  by any  gain or loss
    realized from  the taxable  event  only to  the  extent that  the  resulting
    Federal taxable income is derived from "business activity."
 
                                     4 of 7
<PAGE>
   
                        NUVEEN MICHIGAN INSURED TRUST 62
                   (NUVEEN TAX-EXEMPT UNIT TRUST SERIES 823)
         SCHEDULE OF INVESTMENTS AT THE DATE OF DEPOSIT, SEPTEMBER 7, 1995
    
 
   
<TABLE>
<CAPTION>
                                                                                          Ratings(3)           Trustee's
                                                                      Optional       ---------------------   Determination
 Aggregate        Name of Issuer and Title of Issue Represented      Redemption       Standard                of Offering
  Principal        by Sponsor's Contracts to Purchase Bonds(1)      Provisions(2)     & Poor's    Moody's        Price
<C>          <C> <S>                                              <C>                <C>         <C>        <C>
- ---------------------------------------------------------------------------------------------------------------------------
$   500,000      Michigan State Hospital Finance Authority,          2003 at 102        AAA         Aaa     $       480,000
                   Hospital Revenue Refunding Bonds (Oakwood
                   Hospital Obligated Group), Series 1993A,
                   5.50% Due 11/1/13.
    370,000      Michigan State Hospital Finance Authority           2003 at 102        AAA         Aaa             362,600
                   (Michigan), Hospital Revenue Refunding Bonds
                   (St. John Hospital), Series 1993A, 5.75% Due
                   5/15/16. (Original issue discount bonds
                   delivered on or about January 14, 1993 at a
                   price of 93.313% of principal amount.)
    200,000      Michigan Municipal Bond Authority, Local         No Optional Call      AAA         Aaa              59,000
                   Government Loan Program, Revenue Bonds,
                   Series 1994G, 0.00% Due 5/1/16. (Original
                   issue discount bonds delivered on or about
                   December 21, 1994 at a price of 22.999% of
                   principal amount.)
    240,000      Leslie Public Schools, Counties of Ingham and       2005 at 101        AAA         Aaa             241,978
                   Jackson, State of Michigan, 1995 School
                   Building and Site and Refunding Bonds, 6.00%
                   Due 5/1/15. (General Obligation Bonds.)
    500,000      Board of Trustees of Oakland University,            2005 at 102        AAA         Aaa             489,370
                   Michigan, General Revenue Bonds, Series 1995,
                   5.75% Due 5/15/26.
    535,000     * County of Ottawa, State of Michigan, Ottawa        2005 at 100        AAA         Aaa             535,000
                   County Refunding Bonds (Northwest Ottawa
                   Water-1976-Second Refunding), 5.875% Due
                   1/1/15. (General Obligation Bonds.) (When
                   issued.)
    500,000      Reeths-Puffer Schools, County of Muskegon,          2005 at 101        AAA         Aaa             502,030
                   State of Michigan, 1995 School Building and
                   Site and Refunding Bonds, 6.00% Due 5/1/25.
                   (General Obligation Bonds.)
    155,000      Warren Consolidated Schools, Counties of Macomb     2003 at 102        AAA         Aaa             149,188
                   and Oakland, State of Michigan, 1993
                   Refunding Bonds, 5.50% Due 5/1/14. (General
                   Obligation Bonds.)
    500,000      Commonwealth of Puerto Rico, Public Improvement   2005 at 101 1/2      AAA         Aaa             474,475
                   Bonds of 1995 (General Obligation Bonds.),
                   5.375% Due 7/1/22. (Original issue discount
                   bonds delivered on or about May 4, 1995 at a
                   price of 93.916% of principal amount.)
- -----------                                                                                                 ---------------
$ 3,500,000                                                                                                 $     3,293,641
- -----------                                                                                                 ---------------
- -----------                                                                                                 ---------------
</TABLE>
    
 
* These  Bonds,  or a  portion thereof,  have delivery  dates beyond  the normal
  settlement date. Their expected delivery date is September 21, 1995. Contracts
  relating to  Bonds  with delivery  dates  after  the date  of  settlement  for
  purchase  made  on the  Date of  Deposit constitute  approximately 15%  of the
  aggregate principal amount of the Trust. (See "COMPOSITION OF TRUSTS" in  Part
  B of this Prospectus.)
 
- ------------
 
    (1)  The Sponsor's contracts to purchase  Bonds were entered into during the
period from September 5, 1995 to September 6, 1995. Other information  regarding
the Bonds in the Trust on the initial Date of Deposit is as follows:
 
<TABLE>
<CAPTION>
                                             ANNUAL
                                 PROFIT     INTEREST
                    COST TO    (OR LOSS)   INCOME TO   BID PRICE
       TRUST        SPONSOR    TO SPONSOR    TRUST      OF BONDS
  ---------------  ----------  ----------  ----------  ----------
  <S>              <C>         <C>         <C>         <C>
  MICHIGAN
  INSURED TRUST
  62.............  $3,282,267  $  11,374   $ 188,756   $3,278,428
</TABLE>
 
In  addition,  the difference  between the  Trustee's determination  of Offering
Price and Bid Price (as a percentage of principal amount) is .43%. Neither  cost
to  Sponsor nor  profit (or  loss) to  Sponsor reflects  underwriting profits or
losses received  or  incurred  by  the  Sponsor  through  its  participation  in
underwriting  syndicates. The  Sponsor did  not participate  as either  the sole
underwriter or as a manager or member of a syndicate that acted as the  original
underwriter of any of the Bonds.
 
    (2)  The Bonds are first subject to optional redemption in the years, and at
the prices,  shown. Unless  otherwise  indicated, the  Bonds, except  for  Bonds
issued  at a  substantial original issue  discount, are  redeemable at declining
prices (but not below  par value) in subsequent  years. Original issue  discount
bonds,  including zero coupon bonds, are generally redeemable at prices based on
the issue  price  plus  the  amount  of  original  issue  discount  accreted  to
redemption  plus, if applicable, some premium,  the amount of which will decline
in subsequent years. The  Bonds may also be  subject to sinking fund  redemption
without  premium  prior to  the dates  shown.  Certain Bonds  may be  subject to
redemption without  premium prior  to  the date  shown  pursuant to  special  or
mandatory  call provisions specified in the  instruments setting forth the terms
and provisions of  such Bonds.  See "COMPOSITION OF  TRUSTS", "WHAT  IS THE  TAX
STATUS OF UNITHOLDERS?" and "RISK FACTORS" in Part B of this Prospectus.
 
    (3)  All the  Bonds in the  Insured Trusts,  as insured by  the Insurer, are
rated AAA by Standard & Poor's and Aaa by Moody's. The insurance obtained by the
Trust guarantees the payment of interest  and
principal  on  the  Bonds when  due  but  does not  cover  certain  market risks
associated with fixed income securities  such as accelerated payments,  premiums
payable  on mandatory redemptions or interest rate  risks. (See "WHY AND HOW ARE
THE BONDS INSURED?" in Part B of this Prospectus and "Description of Ratings" in
the Information Supplement.)
 
                                     5 of 7
<PAGE>
                             Statement of Condition
 
                        NUVEEN MICHIGAN INSURED TRUST 62
 
   
                   (Nuveen Tax-Exempt Unit Trust, Series 823)
    
 
   
                            AS OF SEPTEMBER 7, 1995
    
 
   
<TABLE>
<S>                                                 <C>
    TRUST PROPERTY
Sponsor's contracts to purchase Tax-Exempt Bonds,
  backed by an irrevocable letter of
  credit(1)(2)....................................  $    3,293,641
Accrued interest to September 7, 1995 on
  underlying Bonds(1).............................          51,059
Organizational costs(3)...........................           5,100
                                                    --------------
            Total.................................  $    3,349,800
                                                    --------------
                                                    --------------
   LIABILITIES AND INTEREST OF UNITHOLDERS
LIABILITIES:
    Accrued interest to September 7, 1995 on
     underlying Bonds(4)..........................  $       51,059
    Accrued organizational costs(3)...............           5,100
                                                    --------------
            Total.................................  $       56,159
                                                    --------------
                                                    --------------
INTEREST OF UNITHOLDERS:
    Units of fractional undivided interest
     outstanding (35,000)
      Cost to investors(5)........................  $    3,463,329
        Less: Gross underwriting commission(6)....        (169,688)
                                                    --------------
    Net amount applicable to investors............  $    3,293,641
                                                    --------------
            Total.................................  $    3,349,800
                                                    --------------
                                                    --------------
- ------------
(1) Represented by  contracts to purchase  Tax-Exempt Bonds  which
    include  "when issued" or "regular  way" or "delayed delivery"
    contracts for which an irrevocable letter of credit issued  by
    a major commercial bank has been deposited with the Trustee on
    the  Date of Deposit. The amount  of such letter of credit and
    any cash  deposited  exceeds  the  amount  necessary  for  the
    purchase  of the  Bonds plus accrued  interest to  the Date of
    Deposit. At the Date of Deposit, Bonds may have been delivered
    to the Sponsor  pursuant to  certain of  these contracts;  the
    Sponsor  has assigned to the Trustee  all of its rights, title
    and interest in and to such Bonds.
(2) Aggregate value (at offering prices) as of the Date of Deposit
    of the Bonds  listed under "Schedule  of Investments"  herein,
    and  their  aggregate cost  to the  Trust  are the  same. Such
    offering  prices  were  determined  by  Kenny  S&P  Evaluation
    Services,  a division of J.J. Kenny Co., Inc., as of the close
    of business on the business day prior to the Date of  Deposit.
    (See "HOW WAS THE PRICE OF THE BONDS DETERMINED AT THE DATE OF
    DEPOSIT?"  in Part  B of this  Prospectus.) Insurance coverage
    providing for the timely payment,  when due, of all  principal
    of  and interest  on the  Bonds in  an Insured  Trust has been
    obtained by the Sponsor or by the issuers of such Bonds.  Such
    insurance  does not guarantee the market value of the Bonds or
    the value of the Units. Both  the bid and the offering  prices
    of  the underlying  Bonds and of  the Units  may include value
    attributable to such policies of insurance.
(3) The  Trust (and  therefore  Unitholders) will  bear all  or  a
    portion  of its  estimated organizational costs  which will be
    deferred and  amortized  over  five years  from  the  Date  of
    Deposit.
(4)  Representing, as set forth in  "WHAT IS ACCRUED INTEREST?" in
    Part B of this  Prospectus, advancement by  the Trustee of  an
    amount  equal to the  accrued Bond interest as  of the Date of
    Deposit.
(5)  Aggregate  Public  Offering   Price  (exclusive  of   accrued
    interest)  computed  as set  forth  under "HOW  IS  THE PUBLIC
    OFFERING PRICE DETERMINED?" in Part B of this Prospectus.
(6) The  gross  underwriting commission  of  4.90% of  the  Public
    Offering  Price has been calculated on the assumption that the
    Units sold are not subject to a reduction of sales charge  for
    quantity purchases. In single transactions involving 500 Units
    or  more, the sales charge is reduced. (See "HOW IS THE PUBLIC
    OFFERING PRICE DETERMINED?" in Part B of this Prospectus.)
</TABLE>
    
 
                                     6 of 7
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
TO THE BOARD OF DIRECTORS OF JOHN  NUVEEN & CO. INCORPORATED AND UNITHOLDERS  OF
MICHIGAN INSURED TRUST 62:
 
   
    We  have audited the accompanying statement of condition and the schedule of
investments at  date of  deposit (included  in  Part A  of this  Prospectus)  of
Michigan  Insured Trust  62 (contained in  Nuveen Tax-Exempt  Unit Trust, Series
823), as of September 7, 1995. These financial statements are the responsibility
of the Sponsor. Our responsibility is  to express an opinion on these  financial
statements based on our audit.
    
 
    We  conducted  our  audit  in accordance  with  generally  accepted auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. Our procedures included
confirmation of the irrevocable letter of credit arrangement for the purchase of
securities,  described  in  Note   (1)  to  the   statement  of  condition,   by
correspondence with the Trustee. An audit also includes assessing the accounting
principles  used  and significant  estimates  made by  the  Sponsor, as  well as
evaluating the overall  financial statement  presentation. We  believe that  our
audit provides a reasonable basis for our opinion.
 
   
    In  our  opinion, the  statement of  condition and  the related  schedule of
investments at date of deposit referred to above present fairly, in all material
respects, the financial position of Michigan Insured Trust 62 as of September 7,
1995, in conformity with generally accepted accounting principles.
    
 
                                                             ARTHUR ANDERSEN LLP
 
   
Chicago, Illinois,
September 7, 1995.
    
 
                                     7 of 7
<PAGE>
                                                                               B
                               SEPTEMBER 1, 1995
                             SUBJECT TO COMPLETION
 
NUVEEN  Tax-Exempt Unit Trusts
             PROSPECTUS -- PART B
            (GENERAL TERMS)
   
              SEPTEMBER 1, 1995
    
 
THIS  PART B OF THE PROSPECTUS MAY NOT BE DISTRIBUTED UNLESS ACCOMPANIED BY PART
A. BOTH PARTS OF THIS PROSPECTUS SHOULD BE RETAINED FOR FUTURE REFERENCE.
FURTHER DETAIL REGARDING CERTAIN OF  THE INFORMATION PROVIDED IN THE  PROSPECTUS
MAY  BE OBTAINED WITHIN FIVE  BUSINESS DAYS OF WRITTEN  OR TELEPHONIC REQUEST TO
THE TRUSTEE AT 770 BROADWAY, NEW YORK, NY 10003 OR (800) 257-8787.
 
INTEREST INCOME TO A TRUST AND TO UNITHOLDERS, IN THE OPINION OF COUNSEL,  UNDER
EXISTING  LAW IS  EXEMPT FROM  FEDERAL INCOME  TAX. CAPITAL  GAINS, IF  ANY, ARE
SUBJECT TO TAX. IN ADDITION, INTEREST INCOME OF STATE TRUSTS IS, IN THE  OPINION
OF  COUNSEL,  EXEMPT,  TO THE  EXTENT  INDICATED,  FROM STATE  AND  LOCAL TAXES.
INTEREST INCOME OF ANY TRUST  OTHER THAN A STATE TRUST  MAY BE SUBJECT TO  STATE
AND LOCAL TAXES.
 
CURRENTLY  OFFERED AT PUBLIC OFFERING PRICE PLUS INTEREST ACCRUED TO THE DATE OF
SETTLEMENT. MINIMUM PURCHASE-- EITHER $5,000 OR 50 UNITS, WHICHEVER IS LESS.
 
THIS NUVEEN TAX-EXEMPT  UNIT TRUST  SERIES consists of  the underlying  separate
unit  investment  trust set  forth  in Part  A  to this  Prospectus.  Each Trust
initially consists  of delivery  statements relating  to contracts  to  purchase
Bonds  and, thereafter, will  consist of a  diversified portfolio of obligations
issued by  or on  behalf of  states and  territories of  the United  States  and
authorities  and political  subdivisions thereof (see  "Schedule of Investments"
appearing in Part A of this  Prospectus). Except in specific instances as  noted
in  Part A of  this Prospectus, the  information contained in  this Part B shall
apply to each Trust in its  entirety. All obligations in each Traditional  Trust
are  rated in the category "A" or better by Standard & Poor's, a division of the
McGraw Hill Companies ("Standard &  Poor's") or Moody's Investors Service,  Inc.
("Moody's")  on the Date of  Deposit. All obligations in  each Insured Trust are
covered by policies of  insurance obtained from  the MBIA Insurance  Corporation
guaranteeing  payment of principal  and interest when due.  All such policies of
insurance remain effective  so long  as the  obligations are  outstanding. As  a
result of such insurance, the Bonds in each portfolio of the Insured Trusts have
received  a rating of "Aaa"  by Moody's and the Bonds  in the Insured Trusts and
the Units of  each such  Trust have  received a rating  of "AAA"  by Standard  &
Poor's. INSURANCE RELATES ONLY TO THE BONDS IN THE INSURED TRUSTS AND NOT TO THE
UNITS  OFFERED HEREBY OR TO THEIR MARKET VALUE.  (See "WHY AND HOW ARE THE BONDS
INSURED?".)
 
THE OBJECTIVES of  a Trust  are tax-exempt  income and  conservation of  capital
through  a diversified investment  in tax-exempt Bonds.  The payment of interest
and the preservation of principal are, of course, dependent upon the  continuing
ability  of  the issuers  of  Bonds and  of any  insurer  thereof to  meet their
obligations thereunder. There is no guarantee that a Trust's objectives will  be
achieved. (See "RISK FACTORS".)
 
DISTRIBUTIONS  of interest received by a Trust will be made semi-annually unless
the Unitholder  elects to  receive them  monthly or  quarterly. (See  "WHEN  ARE
DISTRIBUTIONS  MADE TO  UNITHOLDERS?".) Distribution  of funds  in the Principal
Account, if any, will ordinarily be made semi-annually.
 
FOR ESTIMATED LONG TERM RETURNS AND ESTIMATED CURRENT RETURNS to Unitholders  in
each Trust on the business day prior to the Date of Deposit. (See Part A of this
Prospectus  and  "WHAT  ARE ESTIMATED  LONG  TERM RETURN  AND  ESTIMATED CURRENT
RETURN?".)
 
THE PUBLIC OFFERING  PRICE per Unit  of each Trust  during the initial  offering
period  is equal to a pro rata share of the OFFERING prices of the Bonds in such
Trust's portfolio plus  a sales charge  of up  to 4.90% of  the Public  Offering
Price  (equivalent to 5.152%  of the net  amount invested); the  sales charge is
somewhat lower on Trusts with lesser average maturities. (See "HOW IS THE PUBLIC
OFFERING PRICE DETERMINED?".)  The Secondary  Market Public  Offering Price  per
Unit  for each Trust will be equal to a  pro rata share of the sum of BID prices
of the Bonds in such Trust plus the sales charges determined based on the number
of years  remaining to  the maturity  of each  Bond. Accrued  interest from  the
preceding Record Date to, but not including, the settlement date (normally three
business  days after purchase) is added to  the Public Offering Price. The sales
charge is reduced on a graduated scale  for sales involving at least $50,000  or
500  Units  and will  be applied  on whichever  basis is  more favorable  to the
purchaser. (See "HOW IS THE PUBLIC OFFERING PRICE DETERMINED?".)
 
A UNITHOLDER MAY REDEEM UNITS at the office of the Trustee at prices based  upon
the  BID prices of the Bonds. The price  received upon redemption may be more or
less than the amount paid by Unitholders, depending upon the value of the  Bonds
on  the date of tender  for redemption. (See "HOW  UNITS MAY BE REDEEMED WITHOUT
CHARGE?".) The  Sponsor, although  not required  to  do so,  intends to  make  a
secondary market for the Units of the Trusts at prices based upon the BID prices
of  the Bonds in  the respective Trusts.  (See "MARKET FOR  UNITS".) RETAIN BOTH
PART A AND PART B OF THIS PROSPECTUS FOR FUTURE REFERENCE.
 
RISK FACTORS. An investment in a Trust  should be made with an understanding  of
the risks associated therewith, including, among other factors, the inability of
the issuer or an insurer to pay the principal of or interest on a bond when due,
volatile interest rates, early call provisions, and changes to the tax status of
the Bonds. See Part A of this Prospectus and "RISK FACTORS."
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE COMMISSION OR ANY  STATE SECURITIES COMMISSION  NOR HAS THE  SECURITIES
AND  EXCHANGE  COMMISSION OR  ANY STATE  SECURITIES  COMMISSION PASSED  UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
<PAGE>
  NUVEEN  Tax-Exempt Unit Trusts
 
<TABLE>
<CAPTION>
      INDEX                                                             PAGE
<C>   <S>                                              <C>        <C>
      WHAT IS THE NUVEEN TAX-EXEMPT UNIT TRUST?                            3
      WHAT ARE THE OBJECTIVES OF THE TRUSTS?                               3
      SUMMARY OF PORTFOLIOS                                                3
      RISK FACTORS                                                         4
      COMPOSITION OF TRUSTS                                                6
      WHY AND HOW ARE THE BONDS INSURED?                                   7
      HOW IS THE PUBLIC OFFERING PRICE DETERMINED?                         8
      MARKET FOR UNITS                                                    11
      WHAT IS ACCRUED INTEREST?                                           11
      WHAT ARE ESTIMATED LONG TERM RETURN AND ESTIMATED
      CURRENT RETURN?                                                     12
      HOW WAS THE PRICE OF THE BONDS DETERMINED AT THE
      DATE
      OF DEPOSIT?                                                         12
      WHAT IS THE TAX STATUS OF UNITHOLDERS?                              13
      WHAT ARE NORMAL TRUST OPERATING EXPENSES?                           14
      WHEN ARE DISTRIBUTIONS MADE TO UNITHOLDERS?                         15
      ACCUMULATION PLAN                                                   16
      HOW DETAILED ARE REPORTS TO UNITHOLDERS?                            17
      UNIT VALUE AND EVALUATION                                           17
      HOW UNITS OF THE TRUSTS ARE DISTRIBUTED TO THE
      PUBLIC                                                              17
      OWNERSHIP AND TRANSFER OF UNITS                                     19
      HOW UNITS MAY BE REDEEMED WITHOUT CHARGE                            19
      HOW UNITS MAY BE PURCHASED BY THE SPONSOR                           20
      HOW BONDS MAY BE REMOVED FROM THE TRUSTS                            20
      INFORMATION ABOUT THE TRUSTEE                                       21
      INFORMATION ABOUT THE SPONSOR                                       22
      OTHER INFORMATION                                                   22
</TABLE>
 
                  2
<PAGE>
WHAT IS THE NUVEEN TAX-EXEMPT UNIT TRUST?
 
This Nuveen Tax-Exempt Unit  Trust is one  of a series  of separate but  similar
investment  companies created by the  Sponsor, each of which  is designated by a
different Series number. The underlying unit investment trusts contained in this
Series  are  combined  under  one   Trust  Indenture  and  Agreement.   Specific
information  regarding this Trust is set forth in Part A of this Prospectus. The
various Nuveen Tax-Exempt Unit Trusts are collectively referred to herein as the
"Trusts"; the trusts in which few or none of the Bonds are insured are sometimes
referred to as the "Traditional  Trusts", the trusts in  which all of the  Bonds
are  insured  as described  herein  are sometimes  referred  to as  the "Insured
Trusts", and  the state  trusts  (both Traditional  and Insured)  are  sometimes
referred to as the "State Trusts." This Series was created under the laws of the
State  of New York pursuant to a Trust Indenture and Agreement dated the Date of
Deposit (the "Indenture") between John Nuveen & Co. Incorporated (the "Sponsor")
and The Chase Manhattan Bank, N.A. (the "Trustee").
 
    The Sponsor has deposited with  the Trustee delivery statements relating  to
contracts  for the  purchase of municipal  debt obligations  together with funds
represented by an irrevocable letter of credit issued by a major commercial bank
in the amount, including accrued interest,  required for their purchase (or  the
obligations  themselves) (the "Bonds"). See "Schedule  of Investments" in Part A
of this Prospectus, for  a description of the  Securities deposited in a  Trust.
See  "SUMMARY OF PORTFOLIOS" and "RISK FACTORS"  for a discussion of zero coupon
bonds and  stripped obligations  included in  the Trusts,  if any.  Some of  the
delivery statements may relate to contracts for the purchase of "when issued" or
other Bonds with delivery dates after the date of settlement for a purchase made
on  the Date  of Deposit. See  the "Schedule of  Investments" in Part  A of this
Prospectus and  "COMPOSITION  OF TRUSTS".  For  a discussion  of  the  Sponsor's
obligations in the event of a failure of any contract for the purchase of any of
the  Bonds and its limited right to substitute other bonds to replace any failed
contract, see "COMPOSITION OF TRUSTS."
 
    Payment of interest on the Bonds in each Insured Trust, and of principal  at
maturity,  is guaranteed under policies of  insurance obtained by the Sponsor or
by the issuers of the  Bonds. (See "WHY AND HOW  ARE THE BONDS INSURED?".) AS  A
GENERAL  MATTER, NEITHER THE ISSUER NOR  THE SPONSOR HAS OBTAINED INSURANCE WITH
RESPECT TO THE BONDS IN ANY TRADITIONAL TRUST.
 
    The Trustee has delivered  to the Sponsor  registered Units which  represent
ownership  of  the  entire  Trust,  and  which  are  offered  for  sale  by this
Prospectus. Each Unit of a Trust  represents a fractional undivided interest  in
the  principal and net income of such Trust in the ratio set forth in "Essential
Information" in Part A of this Prospectus.  Units may only be sold in states  in
which  they  are registered.  To  the extent  that any  Units  of any  Trust are
redeemed by the Trustee, the aggregate value of the Trust's assets will decrease
by the amount  paid to the  redeeming Unitholder, but  the fractional  undivided
interest  of each unredeemed  Unit in such  Trust will increase proportionately.
The Sponsor will  initially, and  from time to  time thereafter,  hold Units  in
connection with their offering.
 
WHAT ARE THE OBJECTIVES OF THE TRUSTS?
 
The  objectives of the Trusts are income  exempt from Federal income tax and, in
the case of State Trusts, where applicable, state income and intangibles  taxes,
and  conservation of capital, through an  investment in obligations issued by or
on behalf of  states and territories  of the United  States and authorities  and
political  subdivisions thereof,  the interest  on which  is, in  the opinion of
recognized bond counsel  to the  issuing governmental  authorities, exempt  from
Federal  income  tax  under  existing  law  and  certain  state  income  tax and
intangibles taxes, if any, for purchasers who qualify as residents of that State
in which Bonds are issued. Insurance guaranteeing the timely payment, when  due,
of  all  principal and  interest on  the Bonds  in each  Insured Trust  has been
obtained by the  Sponsor or by  the issuers  of such Bonds  from MBIA  Insurance
Corporation,  and as a result  of such insurance the  obligations in the Insured
Trusts are rated "Aaa" by Moody's and "AAA" by Standard & Poor's. (See "WHY  AND
HOW  ARE THE  BONDS INSURED?".)  All obligations  in each  Traditional Trust are
rated in the category  "A" or better  (SP-1 or MIG  2 or better  in the case  of
short term obligations included in a Short Term Traditional Trust) by Standard &
Poor's  or Moody's (including provisional  or conditional ratings). In addition,
certain Bonds  in  certain  Traditional  Trusts  may  be  covered  by  insurance
guaranteeing  the timely payment, when due, of all principal and interest. There
is, of course, no guarantee that the Trusts' objectives will be achieved. For  a
comparison  of net  after-tax return for  various tax brackets  see the "TAXABLE
EQUIVALENT ESTIMATED CURRENT RETURN  TABLES" included in  the Appendices to  the
Information Supplement of this Prospectus.
 
SUMMARY OF PORTFOLIOS
 
In  selecting  Bonds for  the respective  Trusts,  the following  factors, among
others, were considered:  (i) the Standard  & Poor's Corporation  rating of  the
Bonds  or the Moody's Investors Service, Inc. rating of the Bonds (see "WHAT ARE
THE OBJECTIVES OF THE TRUSTS?" for  a description of minimum rating  standards),
(ii)  the prices of the Bonds relative  to other bonds of comparable quality and
maturity, (iii) the diversification of Bonds as to purpose of issue and location
of issuer, (iv)  the maturity dates  of the Bonds,  and (v) in  the case of  the
Insured Trusts only, the availability of MBIA Insurance Corporation insurance on
such Bonds. (See "WHY AND HOW ARE THE BONDS INSURED?".)
 
                                       3
<PAGE>
RISK FACTORS
 
    An  investment in Units of any Trust should be made with an understanding of
the risks that such an investment may entail. Each Trust consists of  fixed-rate
municipal  debt  obligations. As  such, the  value of  the debt  obligations and
therefore of  the  Units will  decline  with  increases in  interest  rates.  In
general,  the longer the period until the maturity of a Bond, the more sensitive
its value will be to fluctuations in interest rates. The Sponsor cannot  predict
the  extent or timing  of such fluctuations and,  accordingly, their effect upon
the value of the debt obligations.  Additional risk factors include the  ability
of  the issuer, or, if applicable, an  insurer, to make payments of interest and
principal when  due, "mandatory  put" features,  early call  provisions and  the
potential  for changes in the tax status of the Bonds. As set forth in Part A of
this Prospectus, the Trusts may contain or be concentrated in one or more of the
types of bonds discussed below. The following paragraphs briefly discuss certain
circumstances which may adversely affect the ability of issuers of Bonds held in
the portfolio of a Trust to make payment of principal and interest thereon,  and
which  also  therefore may  adversely  affect the  ratings  of such  Bonds. With
respect to Insured  Trusts, however, because  of the insurance  obtained by  the
Sponsor or by the issuers of the Bonds, such changes should not adversely affect
an  Insured Trust's receipt of principal and interest, the Standard & Poor's AAA
or Moody's Aaa  ratings of  the Bonds  in the  Insured Trust  portfolio, or  the
Standard  & Poor's AAA rating of the Units of each such Insured Trust. The Bonds
described  below  may  be  subject   to  special  or  extraordinary   redemption
provisions.  For economic risks specific to the individual Trusts, see Part A of
this Prospectus  and  the  Appendices  to the  Information  Supplement  of  this
Prospectus.
 
    HEALTH  FACILITY OBLIGATIONS are  obligations of issuers  whose revenues are
derived from services  provided by  hospitals or other  health care  facilities,
including  nursing  homes. The  ability  of such  issuers  to make  debt service
payments on  these  obligations  is  dependent  on  various  factors,  including
occupancy  levels  of the  facility, demand  for  services, wages  of employees,
overhead  expenses,  competition  from   other  similar  providers,   government
regulation,  the cost of  malpractice insurance, and  the degree of governmental
financial assistance, including Medicare and Medicaid.
 
    HOUSING OBLIGATIONS are obligations of issuers whose revenues are  primarily
derived  from mortgage loans on single family residences or housing projects for
low to moderate income families. Housing obligations are generally prepayable at
any time and  therefore their average  life will ordinarily  be less than  their
stated  maturities. The ability of such issuers to make debt service payments on
these obligations is dependent on  various factors, including occupancy  levels,
rental  income, mortgage default rates,  taxes, operating expenses, governmental
regulations and the appropriation of subsidies.
 
    INDUSTRIAL  REVENUE  OBLIGATIONS  are  industrial  revenue  bonds  ("IRBs"),
including  pollution  control  revenue bonds,  which  are  tax-exempt securities
issued by  states, municipalities,  public authorities  or similar  entities  to
finance  the  cost of  acquiring, constructing  or improving  various industrial
projects. Debt  service  payment on  IRBs  is dependent  upon  various  factors,
including  the creditworthiness of the corporate operator of the project and, if
applicable, corporate guarantor, revenues  generated from the project,  expenses
associated with the project and regulatory and environmental restrictions.
 
    ELECTRIC  UTILITY OBLIGATIONS are obligations  of issuers whose revenues are
primarily derived from the sale of electric energy. The ability of such  issuers
to  make  debt service  payments on  these obligations  is dependent  on various
factors, including the rates  for electricity, the  demand for electricity,  the
degree  of competition, governmental regulation,  overhead expenses and variable
costs, such as fuel.
 
    TRANSPORTATION FACILITY REVENUE OBLIGATIONS are obligations of issuers which
are payable  from  and  secured  by revenues  derived  from  the  ownership  and
operation  of airports, public transit systems and ports. The ability of issuers
to make  debt  service payments  on  airport  obligations is  dependent  on  the
capability  of airlines to  meet their obligations under  use agreements. Due to
increased competition,  deregulation, increased  fuel costs  and other  factors,
many  airlines may  have difficulty  meeting their  obligations under  these use
agreements. Bonds  that are  secured primarily  by the  revenue collected  by  a
public  transit system typically  are additionally secured by  a pledge of sales
tax receipts collected  at the state  or local level,  or of other  governmental
financial  assistance. The revenue of issuers of transit system obligations will
be affected by variations in utilization, which  in turn may be affected by  the
degree  of  local governmental  subsidization, competition  from other  forms of
transportation, and  increased costs.  Port  authorities derive  their  revenues
primarily  from fees imposed  on ships using the  facilities which may fluctuate
depending on  the local  economy  and on  competition  from competing  forms  of
transportation  such  as air,  rail and  trucks. The  revenues of  issuers which
derive their  payments  from bridge,  road  or  tunnel toll  revenues  could  be
adversely  affected  by  increases  in fuel  costs,  competition  from toll-free
vehicular bridges and roads and alternative modes of transportation.
 
    WATER AND/OR SEWERAGE OBLIGATIONS are obligations of issuers whose  revenues
are  payable from user fees from the sale of water and/or sewerage services. The
problems   of   such    issuers   include   the    ability   to   obtain    rate
 
                                       4
<PAGE>
increases,  population  declines, the  limitations  on operations  and increased
costs and delays attributable to environmental considerations, the  difficulties
obtaining  new supplies of fresh water,  the effect of conservation programs and
in "no-growth" zoning ordinances.
 
    UNIVERSITY AND COLLEGE REVENUE OBLIGATIONS are obligations of issuers  whose
revenues  are  derived  mainly  from  tuition,  dormitory  revenues,  grants and
endowments. General  problems faced  by  such issuers  include declines  in  the
number  of "college" age  individuals, possible inability  to raise tuitions and
fees, the uncertainty of continued receipt of Federal grants and state  funding,
and  government  legislation  or  regulations  which  may  adversely  affect the
revenues or costs of such issuers.
 
    DEDICATED-TAX SUPPORTED  OBLIGATIONS are  obligations of  issuers which  are
payable  from  and  secured by  tax  revenues  from a  designated  source, which
revenues are pledged to secure the  bonds. The various types of Bonds  described
below  differ in structure and with respect  to the rights of the bondholders to
the underlying property. Each type of dedicated-tax supported Bond has  distinct
risks,  only  some of  which  are set  forth  below. One  type  of dedicated-tax
supported Bond  is  secured by  the  incremental  tax received  on  either  real
property  or on sales within a  specifically defined geographical area; such tax
generally will not provide bondholders with a lien on the underlying property or
revenues. Another type of dedicated-tax supported  Bond is secured by a  special
tax  levied on real property within a defined geographical area in such a manner
that the  tax is  levied  on those  who benefit  from  the project;  such  bonds
typically  provide for  a statutory lien  on the underlying  property for unpaid
taxes. A third  type of dedicated-tax  supported Bond  may be secured  by a  tax
levied  upon the  manufacture, sale  or consumption  of commodities  or upon the
license to  pursue certain  occupations or  upon corporate  privileges within  a
taxing  jurisdiction. As  to any  of these  types of  Bonds, the  ability of the
designated revenues to satisfy the interest and principal payments on such bonds
may be affected by changes  in the local economy,  the financial success of  the
enterprise  responsible for the payment of the  taxes, the value of any property
on which taxes may be assessed and the ability to collect such taxes in a timely
fashion. Each of  these factors will  have a different  affect on each  distinct
type of dedicated-tax supported bonds.
 
    MUNICIPAL  LEASE  OBLIGATIONS  are  obligations that  are  secured  by lease
payments of a  governmental entity  and are  normally subject  to annual  budget
appropriations  of the leasing  governmental entity. A  governmental entity that
enters into  such  a  lease  agreement cannot  obligate  future  governments  to
appropriate  for and make lease payments but covenants to take such action as is
necessary to include  any lease  payments due  in its  budgets and  to make  the
appropriations  therefor. A governmental entity's failure to appropriate for and
to make payments under its lease  obligation could result in insufficient  funds
available for payment of the obligations secured thereby.
 
    ORIGINAL ISSUE DISCOUNT OBLIGATIONS AND STRIPPED OBLIGATIONS are bonds which
were  issued with  nominal interest  rates less than  the rates  then offered by
comparable securities and as  a consequence were originally  sold at a  discount
from  their face,  or par,  values. In a  stable interest  rate environment, the
market value of  an original  issue discount bond  would tend  to increase  more
slowly in early years and in greater increments as the bond approached maturity.
 
    Certain  of the original issue  discount obligations in a  Trust may be zero
coupon bonds. Zero coupon bonds  do not provide for  the payment of any  current
interest;  the buyer receives only  the right to receive  a final payment of the
face amount  of the  bond at  its maturity.  Zero coupon  bonds are  subject  to
substantially  greater  price  fluctuations during  periods  of  changing market
interest rates  than are  securities  of comparable  quality that  pay  interest
currently.
 
    Original  issue discount  obligations, including  zero coupon  bonds, may be
subject to redemption  at prices based  on the  issue price plus  the amount  of
original  issue discount accreted to redemption  (the "accreted value") plus, if
applicable, some premium. Pursuant  to such call  provisions, an original  issue
discount  bond may be called prior to its maturity date at a price less than its
face value.  See the  "Schedule of  Investments"  appearing in  Part A  of  this
Prospectus for more information about the call provisions of portfolio Bonds.
 
    Certain of the Bonds in a Trust may be stripped obligations, which represent
evidences  of ownership  with respect  to either  the principal  amount of  or a
payment of interest  on a tax-exempt  obligation ("Stripped Obligations").  Each
Stripped  Obligation has been purchased at a discount from the amount payable at
maturity. A Stripped Obligation  therefore has economic characteristics  similar
to zero coupon bonds, as described above.
 
    Unitholders  should consult their own tax advisers with respect to the state
and local tax consequences of owning  original issue discount bonds or  Stripped
Obligations.  Under applicable  provisions governing determination  of state and
local taxes,  interest  on  original  issue  discount  obligations  or  Stripped
Obligations  may be  deemed to be  received in  the year of  accrual even though
there is no corresponding cash payment.
 
                                       5
<PAGE>
    Certain bonds may carry a "mandatory put" (also referred to as a  "mandatory
tender"  or "mandatory repurchase") feature pursuant to which the holder of such
bonds will receive payment of the full principal amount thereof on a stated date
prior to the maturity date unless  such holder affirmatively acts to retain  the
bond.  The Trustee does not have the authority  to act to retain Bonds with such
features; accordingly, it will receive payment  of the full principal amount  of
any  such Bonds on the stated put date and such date is therefore treated as the
maturity date of such Bonds in selecting Bonds for the respective Trusts and for
purposes of calculating the average maturity of the Bonds in any Trust.
 
COMPOSITION OF TRUSTS
 
Each Trust initially consists  of delivery statements  relating to contracts  to
purchase  Bonds (or of such Bonds) as are listed under "Schedule of Investments"
in Part A of this Prospectus and,  thereafter, of such Bonds as may continue  to
be  held from time to time (including  certain securities deposited in the Trust
in  substitution  for  Bonds  not  delivered  to  a  Trust  or  in  exchange  or
substitution  for  Bonds upon  certain  refundings), together  with  accrued and
undistributed  interest  thereon  and  undistributed  cash  realized  from   the
disposition of Bonds.
 
    "WHEN-ISSUED"  AND  "DELAYED  DELIVERY"  TRANSACTIONS.    The  contracts  to
purchase Bonds delivered to  the Trustee represent an  obligation by issuers  or
dealers  to deliver Bonds to  the Sponsor for deposit  in the Trusts. Certain of
the contracts relate  to Bonds  which have  not been issued  as of  the Date  of
Deposit  and which are commonly referred to as "when issued" or "when, as and if
issued" Bonds. Although  the Sponsor  believes it  unlikely, if  such Bonds,  or
replacement  bonds described  below, are  not acquired  by a  Trust or  if their
delivery is  delayed, the  Estimated  Current Returns  and Estimated  Long  Term
Returns  shown  in Part  A of  this Prospectus  may be  reduced. Certain  of the
contracts for the purchase of Bonds provide for delivery dates after the date of
settlement for purchases  made on the  Date of Deposit.  Interest on such  "when
issued"  and  "delayed delivery"  Bonds accrues  to  the benefit  of Unitholders
commencing with the first settlement date for the Units. However, in the opinion
of counsel, Unitholders who  purchase their Units prior  to the date such  Bonds
are  actually delivered to the Trustee must  reduce the tax basis of their Units
for interest accruing on such Bonds  during the interval between their  purchase
of  Units and the delivery of the Bonds because such amounts constitute a return
of principal. As a result of such adjustment, the Estimated Current Returns  set
forth in Part A of this Prospectus (which are based on the Public Offering Price
as  of the business day prior to the Date of Deposit) may be slightly lower than
Unitholders will receive after the first  year, assuming the Portfolio does  not
change  and estimated  annual expense  does not vary  from that  set forth under
"Essential Information" in Part A of this Prospectus. Those Bonds in each  Trust
purchased with delivery dates after the date of settlement for purchases made on
the  Date of Deposit are so noted in  the "Schedule of Investments" in Part A of
this Prospectus.
 
    LIMITED REPLACEMENT OF CERTAIN BONDS.   Neither the Sponsor nor the  Trustee
shall  be liable in any way  for any default, failure or  defect in any Bond. In
the event of a failure to deliver any  Bond that has been purchased for a  Trust
under  a contract, including those  Bonds purchased on a  when, as and if issued
basis ("Failed Bonds"), the Sponsor is authorized under the Indenture to  direct
the  Trustee to acquire  other specified Bonds ("Replacement  Bonds") to make up
the original corpus of the Trust within 20 days after delivery of notice of  the
failed  contract and the cost  to the Trust (exclusive  of accrued interest) may
not exceed the amount of  funds reserved for the  purchase of the Failed  Bonds.
The  Replacement Bonds  must satisfy the  criteria previously  described for the
Trusts and shall be substantially identical to the Failed Bonds they replace  in
terms  of (i) the exemption from federal  and state taxation; (ii) maturity and;
(iii) cost to the Trust. In addition,  Replacement Bonds shall not be "when,  as
and if issued" Bonds. Whenever a Replacement Bond has been acquired for a Trust,
the  Trustee shall, within five days after the delivery thereof, mail or deliver
a notice of such acquisition to all Unitholders of the Trust involved. Once  the
original corpus of the Trust is acquired, the Trustee will have no power to vary
the investment of the Trust.
 
    To  the extent Replacement Bonds are  not acquired, the Sponsor shall refund
to all Unitholders of the Trust  involved the sales charge attributable to  such
Failed  Bonds not replaced, and the  principal and accrued interest attributable
to such Bonds shall be distributed not more than 30 days after the determination
of such failure or at  such earlier time as the  Trustee in its sole  discretion
deems  to be in the interest of  the Unitholders. Any such accrued interest paid
to Unitholders will be paid by the Sponsor and, accordingly, will not be treated
as tax-exempt  income.  In the  event  Failed Bonds  in  a Trust  could  not  be
replaced,  the  Net Annual  Interest Income  per  Unit for  such Trust  would be
reduced and the Estimated Current Return thereon might be lowered.
 
    SALE, MATURITY AND REDEMPTION OF BONDS.  Certain of the Bonds may from  time
to  time  under certain  circumstances be  sold  or redeemed  or will  mature in
accordance with their terms. The proceeds from  such events will be used to  pay
for   Units  redeemed  or   distributed  to  Unitholders   and  not  reinvested;
accordingly, no assurance can be given that  a Trust will retain for any  length
of time its present size and composition.
 
    All  of the Bonds in  each Trust are subject to  being called or redeemed in
whole or  in part  prior to  their stated  maturities pursuant  to the  optional
redemption  provisions described in  the "Schedule of Investments"  in Part A of
 
                                       6
<PAGE>
this Prospectus  and  in  most  cases  pursuant  to  sinking  fund,  special  or
extraordinary  redemption provisions. See the discussion of the various types of
bond issues,  above, for  information  on the  call  provisions of  such  bonds,
particularly single family mortgage revenue bonds.
 
    The exercise of redemption or call provisions will (except to the extent the
proceeds of the called Bonds are used to pay for Unit redemptions) result in the
distribution  of  principal and  may  result in  a  reduction in  the  amount of
subsequent interest  distributions; it  may also  affect the  current return  on
Units  of the Trust involved.  The exercise of redemption  or call provisions is
more likely to occur in  situations where when the  Bonds have an offering  side
evaluation  which represents a premium  over par (as opposed  to a discount from
par). (In  the  case  of  original issue  discount  bonds,  such  redemption  is
generally  to  be made  at the  issue price  plus the  amount of  original issue
discount accreted to the date of redemption; such price is referred to herein as
"accreted value"). Because Bonds may have  been valued at prices above or  below
par  value or the then current accreted  value at the time Units were purchased,
Unitholders may realize  gain or loss  upon the redemption  of portfolio  Bonds.
(See  "WHAT IS THE TAX STATUS OF  UNITHOLDERS?" and "WHEN ARE DISTRIBUTIONS MADE
TO UNITHOLDERS?" in Part B and the  "Schedule of Investments" in Part A of  this
Prospectus.)
 
    CERTAIN  TAX  MATTERS;  LITIGATION.    Certain of  the  Bonds  in  a Trust's
portfolio may be subject  to continuing requirements such  as the actual use  of
bond proceeds, manner of operation of the project financed from bond proceeds or
rebate  of excess  earnings on  bond proceeds that  may affect  the exemption of
interest on such  Bonds from Federal  income taxation. Although  at the time  of
issuance  of each  of the  Bonds in each  Trust an  opinion of  bond counsel was
rendered as to the exemption of interest on such obligations from Federal income
taxation, and the issuers covenanted  to comply with all requirements  necessary
to retain the tax-exempt status of the Bonds, there can be no assurance that the
respective  issuers  or  other obligors  on  such obligations  will  fulfill the
various continuing  requirements  established  upon issuance  of  the  Bonds.  A
failure to comply with such requirements may cause a determination that interest
on  such  obligations  is  subject  to  Federal  income  taxation,  perhaps even
retroactively from the  date of  issuance of  such Bonds,  thereby reducing  the
value of the Bonds and subjecting Unitholders to unanticipated tax liabilities.
 
    To  the best knowledge of the Sponsor,  there is no litigation pending as of
the Date of Deposit in respect of  any Bonds which might reasonably be  expected
to  have a  material adverse effect  on any of  the Trusts. It  is possible that
after the Date of Deposit, litigation may be initiated with respect to Bonds  in
any  Trust. Any  such litigation may  affect the  validity of such  Bonds or the
tax-exempt nature of the interest thereon,  but while the outcome of  litigation
of  such nature can never be entirely predicted, the opinions of bond counsel to
the issuer of  each Bond  on the  date of issuance  state that  such Bonds  were
validly issued and that the interest thereon is, to the extent indicated, exempt
from Federal income tax.
 
WHY AND HOW ARE THE BONDS INSURED?
 
Insurance  guaranteeing  the  timely payment,  when  due, of  all  principal and
interest on the Bonds in each Insured Trust has been obtained by the Sponsor  or
by  the issuers or underwriters of the Bonds from the MBIA Insurance Corporation
(the "Insurer"). Certain of the  Bonds in an Insured Trust  may be covered by  a
policy  or policies of insurance obtained by  the issuers or underwriters of the
Bonds from  Municipal Bond  Insurance Association  (the "Association")  or  Bond
Investors  Guaranty Insurance Company ("BIG"). The claims-paying ability of both
the Insurer  and the  Association was  rated  "AAA Prime  Grade" by  Standard  &
Poor's.  Moody's rates  all bond  issuers insured by  either the  Insurer or the
Association "Aaa" and  short-term loans "MIG  1," both designated  to be of  the
highest  quality.  The Insurer  has  issued a  policy  or policies  of insurance
covering each of the Bonds in the Insured Trusts, each policy to remain in force
until the payment in full of such Bonds and whether or not the Bonds continue to
be held  by an  Insured Trust.  By the  terms of  each policy  the Insurer  will
unconditionally  guarantee to  the holders or  owners of the  Bonds the payment,
when due,  required of  the  issuer of  the  Bonds of  an  amount equal  to  the
principal of and interest on the Bonds as such payments shall become due but not
be  paid  (except that  in the  event of  any  acceleration of  the due  date of
principal by reason of mandatory  or optional redemption, default or  otherwise,
the  payments guaranteed will be made in such amounts and at such times as would
have been due had there not been an acceleration).
 
    Insurance guaranteeing the timely  payment, when due,  of all principal  and
interest  on certain Bonds in a Traditional  Trust may have been obtained by the
Sponsor, issuer or underwriter  of the particular Bonds  involved or by  another
party.  Such insurance, which  provides coverage substantially  the same as that
obtained with  respect  to  Bonds  in Insured  Trusts  as  described  above,  is
effective  so long as the insured Bond is outstanding and the insurer remains in
business. Insurance relates  only to the  particular Bond and  not to the  Units
offered hereby or to their market value. Insured Bonds have received a rating of
"Aaa"  by  Moody's and/or  "AAA" by  Standard  & Poor's  in recognition  of such
insurance.
 
                                       7
<PAGE>
    If a Bond in a Traditional  Trust is insured, the "Schedule of  Investments"
appearing in Part A of this Prospectus will identify the insurer. The Sponsor to
date  has purchased  and presently  intends to  purchase insurance  for Bonds in
Traditional Trusts exclusively from the Insurer. There can be no assurance  that
any  insurer listed therein will be able to satisfy its commitments in the event
claims are made in  the future. However, Standard  & Poor's and/or Moody's  have
rated the claims-paying ability of each insurer "AAA" or "Aaa," respectively.
 
    The  Insurer is the principal operating subsidiary of MBIA, Inc., a New York
Stock Exchange listed company. MBIA, Inc. is  not obligated to pay the debts  of
or  claims against the  Insurer. The Insurer is  a limited liability corporation
rather than a  several liability association.  The Insurer is  domiciled in  the
State  of New York and licensed to do business in all 50 states, the District of
Columbia, the  Commonwealth of  Puerto Rico,  the Commonwealth  of the  Northern
Mariana  Islands, the Virgin Islands  of the United States  and the Territory of
Guam. The Insurer has one European branch in the Republic of France.
 
    As of  June  30,  1995 the  Insurer  had  admitted assets  of  $3.6  billion
(unaudited),  total liabilities of  $2.4 billion (unaudited),  and total capital
and surplus of $1.2 billion (unaudited) determined in accordance with  statutory
accounting   practices   prescribed   or  permitted   by   insurance  regulatory
authorities. As of December  31, 1994, the Insurer  had admitted assets of  $3.4
billion  (audited),  total  liabilities  of $2.3  billion  (audited),  and total
capital and  surplus of  $1.1 billion  (audited) determined  in accordance  with
statutory  accounting practices prescribed or  permitted by insurance regulatory
authorities.
 
    The Association is comprised  of the five insurance  companies set forth  in
the following table, which provides certain unaudited financial information with
respect to each of the five insurance companies comprising the Association.
 
                      MUNICIPAL BOND INSURANCE ASSOCIATION
      FIVE MEMBER COMPANIES ASSETS AND POLICYHOLDERS' SURPLUS (UNAUDITED)
                           AS OF SEPTEMBER 30, 1994.
                                (000'S OMITTED)
 
<TABLE>
<CAPTION>
                                                                                   NEW YORK         NEW YORK         NEW YORK
                                                                                   STATUTORY        STATUTORY     POLICYHOLDERS
                                                                                    ASSETS         LIABILITIES       SURPLUS
                                                                                ---------------  ---------------  --------------
<S>                                                                             <C>              <C>              <C>
The AEtna Casualty & Surety Company...........................................  $    10,030,200  $     8,275,300   $  1,754,900
Fireman's Fund Insurance Company..............................................        6,815,775        4,904,534      1,911,241
The Travelers Indemnity Company...............................................       10,295,359        8,515,392      1,779,967
CIGNA Property and Casualty Company (formerly AEtna Insurance Company)........        5,112,251        4,842,235        270,016
The Continental Insurance Company.............................................        2,794,536        2,449,805        344,731
                                                                                ---------------  ---------------  --------------
        Total.................................................................  $    35,048,121  $    28,987,266   $  6,060,855
                                                                                ---------------  ---------------  --------------
                                                                                ---------------  ---------------  --------------
</TABLE>
 
    Insurance  companies  are subject  to  extensive regulation  and supervision
where they  do  business  by  state insurance  commissioners  who  regulate  the
standards of solvency which must be maintained, the nature of and limitations on
investments, reports of financial condition, and requirements regarding reserves
for  unearned premiums, losses  and other matters. A  significant portion of the
assets of insurance companies are required by law to be held in reserve  against
potential claims on policies and is not available to general creditors. Although
the  federal government  does not  regulate the  business of  insurance, federal
initiatives including  pension  regulation,  controls  on  medical  care  costs,
minimum  standards for no-fault automobile insurance, national health insurance,
tax law changes affecting life insurance  companies and repeal of the  antitrust
exemption  for  the insurance  business can  significantly impact  the insurance
business.
 
    The above ratings are  not recommendations to buy,  sell or hold the  Bonds,
and  such ratings may  be subject to revision  or withdrawal at  any time by the
rating agencies. Any downward revision or  withdrawal of either or both  ratings
may have an adverse effect on the market price of the Bonds. See the Information
Supplement--for further information concerning insurance.
 
    Because the insurance on the Bonds, if any, will be effective so long as the
Bonds  are outstanding, such insurance will be taken into account in determining
the market value  of the  Bonds and therefore  some value  attributable to  such
insurance  will be included in the value of the Units of the Insured Trusts. The
insurance does not, however, guarantee the market  value of the Bonds or of  the
Units.
 
HOW IS THE PUBLIC OFFERING PRICE DETERMINED?
 
The  Public Offering Price of the Units of  each Trust is equal to the Trustee's
determination of the aggregate  OFFERING prices of  the Bonds deposited  therein
(minus  any  advancement to  the  principal account  of  the Trust  made  by the
 
                                       8
<PAGE>
Trustee) plus a sales charge set forth  in "Essential Information" in Part A  of
this  Prospectus, in  each case  adding to  the total  thereof cash  held by the
Trust, if  any,  and  dividing the  sum  so  obtained by  the  number  of  Units
outstanding in the Trust. See "UNIT VALUE AND EVALUATION."
 
    The  sales charge applicable to quantity purchases is reduced on a graduated
scale for sales to any  purchaser of at least $50,000  or 500 Units and will  be
applied  on whichever basis is more favorable  to the purchaser. For purposes of
calculating the applicable  sales charge,  purchasers who  have indicated  their
intent  to purchase a specified  amount of Units of any  Trust in the primary or
secondary offering period by executing and delivering a letter of intent to  the
Sponsor,  which letter of intent must be in a form acceptable to the Sponsor and
shall have a maximum duration of thirteen months, will be eligible to receive  a
reduced  sales charge according to  the following tables based  on the amount of
intended aggregate  purchases as  expressed  in the  letter  of intent.  Due  to
administrative  limitations and in  order to permit  adequate tracking, the only
secondary market  purchases that  will be  permitted to  be applied  toward  the
intended  specified amount and that will receive the corresponding reduced sales
charge are  those  Units that  are  acquired through  or  from the  Sponsor.  By
establishing  a letter of intent, a Unitholder agrees that the first purchase of
Units following the execution of  such letter of intent will  be at least 5%  of
the  total  amount  of  the  intended  aggregate  purchases  expressed  in  such
Unitholder's letter of intent. Further, through the establishment of the  letter
of intent, such Unitholder agrees that Units representing 5% of the total amount
of  the  intended  purchases will  be  held  in escrow  by  the  Trustee pending
completion of these purchases. All distributions on Units held in escrow will be
credited  to  such  Unitholder's  account.  If  total  purchases  prior  to  the
expiration  of the letter of intent period  equal or exceed the amount specified
in a Unitholder's letter of intent, the Units held in escrow will be transferred
to such Unitholder's account.  If the total purchases  are less than the  amount
specified,  the Unitholder involved must pay the  Sponsor an amount equal to the
difference between the amounts  paid for these purchases  and the amounts  which
would  have  been paid  if the  higher sales  charge had  been applied.  If such
Unitholder does  not pay  the additional  amount within  20 days  after  written
request  by  the  Sponsor  or the  Unitholder's  securities  representative, the
Sponsor will  instruct  the Trustee  to  redeem  an appropriate  number  of  the
escrowed Units to meet the required payment. By establishing a letter of intent,
a  Unitholder irrevocably appoints the Sponsor  as attorney to give instructions
to redeem any or  all of such  Unitholder's escrowed Units,  with full power  of
substitution in the premises. A Unitholder or his securities representative must
notify  the Sponsor whenever such  Unitholder makes a purchase  of Units that he
wishes to  be counted  towards the  intended amount.  Sales charges  during  the
primary offering period are as follows:
<TABLE>
<CAPTION>
                                                                                     NATIONAL AND STATE      LONG INTERMEDIATE
                                                                                           TRUSTS                  TRUSTS
                                                                                   ----------------------  ----------------------
<S>                                                                                <C>          <C>        <C>          <C>
                                                                                     PERCENT     PERCENT     PERCENT     PERCENT
                                                                                       OF        OF NET        OF        OF NET
                                                                                    OFFERING     AMOUNT     OFFERING     AMOUNT
                                NUMBER OF UNITS*                                      PRICE     INVESTED      PRICE     INVESTED
- ---------------------------------------------------------------------------------  -----------  ---------  -----------  ---------
Less than 500....................................................................        4.90%      5.152%       4.25%      4.439%
500 but less than 1,000..........................................................        4.75       4.987        4.15       4.330
1,000 but less than 2,500........................................................        4.50       4.712        3.85       4.004
2,500 but less than 5,000........................................................        4.25       4.439        3.60       3.734
5,000 but less than 10,000.......................................................        3.50       3.627        3.35       3.466
10,000 but less than 25,000......................................................        3.00       3.093        3.00       3.093
25,000 but less than 50,000......................................................        2.50       2.564        2.50       2.564
50,000 or more...................................................................        2.00       2.041        2.00       2.041
 
<CAPTION>
 
                                                                                    INTERMEDIATE TRUSTS
                                                                                   ----------------------
<S>                                                                                <C>          <C>
                                                                                     PERCENT     PERCENT
                                                                                       OF        OF NET
                                                                                    OFFERING     AMOUNT
                                NUMBER OF UNITS*                                      PRICE     INVESTED
- ---------------------------------------------------------------------------------  -----------  ---------
Less than 500....................................................................        3.90%      4.058%
500 but less than 1,000..........................................................        3.70       3.842
1,000 but less than 2,500........................................................        3.50       3.627
2,500 but less than 5,000........................................................        3.25       3.359
5,000 but less than 10,000.......................................................        3.00       3.093
10,000 but less than 25,000......................................................        2.75       2.828
25,000 but less than 50,000......................................................        2.50       2.564
50,000 or more...................................................................        2.00       2.041
</TABLE>
<TABLE>
<CAPTION>
                                                                                     SHORT INTERMEDIATE
                                                                                           TRUSTS            SHORT TERM TRUSTS
                                                                                   ----------------------  ----------------------
<S>                                                                                <C>          <C>        <C>          <C>
                                                                                     PERCENT     PERCENT     PERCENT     PERCENT
                                                                                       OF        OF NET        OF        OF NET
                                                                                    OFFERING     AMOUNT     OFFERING     AMOUNT
                                NUMBER OF UNITS*                                      PRICE     INVESTED      PRICE     INVESTED
- ---------------------------------------------------------------------------------  -----------  ---------  -----------  ---------
Less than 500....................................................................        3.00%      3.093%       2.50%      2.564%
500 but less than 1,000..........................................................        2.80       2.881        2.30       2.354
1,000 but less than 2,500........................................................        2.60       2.670        2.10       2.145
2,500 but less than 5,000........................................................        2.35       2.407        1.85       1.885
5,000 but less than 10,000.......................................................        2.10       2.145        1.60       1.626
10,000 but less than 25,000......................................................        1.85       1.885        1.35       1.368
25,000 but less than 50,000......................................................        1.80       1.833        1.25       1.266
50,000 or more...................................................................        1.50       1.523        1.15       1.163
 
</TABLE>
 
*Breakpoint  sales charges are computed both on  a dollar basis and on the basis
 of the number of Units purchased, using the equivalent of 500 Units to $50,000,
 2,500 Units to $250,000 etc., and will  be applied on that basis which is  more
 favorable to the purchaser.
 
    For  "secondary market"  sales the  Public Offering  Price per  Unit of each
Trust is determined by adding to the Trustee's determination of the BID price of
each Bond in the Trust  a sales charge determined  in accordance with the  table
set forth below based upon the number of years remaining to the maturity of each
such  Bond. See "UNIT VALUE AND EVALUATION."  The effect of this method of sales
charge calculation will be that different sales charge
 
                                       9
<PAGE>
rates will be applied to the various  Bonds in a Trust portfolio based upon  the
maturities  of such Bonds. As shown, the  sales charge on Bonds in each maturity
range (and therefore the aggregate sales charge on the purchase) is reduced with
respect to purchases of at least $50,000 or 500 Units:
<TABLE>
<CAPTION>
                                                                                  AMOUNT OF PURCHASE*
                                                     ------------------------------------------------------------------------------
<S>                                                  <C>          <C>          <C>          <C>          <C>          <C>
                                                                    $50,000     $100,000     $250,000     $500,000     $1,000,000
                                                        UNDER         TO           TO           TO           TO            TO
YEARS TO MATURITY                                      $50,000      $99,999     $249,999     $499,999     $999,999     $2,499,999
- ---------------------------------------------------  -----------  -----------  -----------  -----------  -----------  -------------
Less than 1........................................           0            0            0            0            0             0
1 but less than 2..................................       1.523%       1.446%       1.369%       1.317%       1.215%        1.061%
2 but less than 3..................................       2.041        1.937        1.833        1.729        1.626         1.420
3 but less than 4..................................       2.564        2.433        2.302        2.175        2.041         1.781
4 but less than 5..................................       3.093        2.961        2.828        2.617        2.459         2.175
5 but less than 7..................................       3.627        3.433        3.239        3.093        2.881         2.460
7 but less than 10.................................       4.167        3.951        3.734        3.520        3.239         2.828
10 but less than 13................................       4.712        4.467        4.221        4.004        3.788         3.253
13 but less than 16................................       5.263        4.988        4.712        4.439        4.167         3.627
16 or more.........................................       5.820        5.542        5.263        4.987        4.603         4.004
 
<CAPTION>
<S>                                                  <C>            <C>
                                                      $2,500,000
                                                          TO         $5,000,000
YEARS TO MATURITY                                     $4,999,999       OR MORE
- ---------------------------------------------------  -------------  -------------
Less than 1........................................            0              0
1 but less than 2..................................         .900%          .750%
2 but less than 3..................................        1.225          1.030
3 but less than 4..................................        1.546          1.310
4 but less than 5..................................        1.883          1.590
5 but less than 7..................................        2.165          1.870
7 but less than 10.................................        2.489          2.150
10 but less than 13................................        2.842          2.430
13 but less than 16................................        3.169          2.710
16 or more.........................................        3.500          3.000
</TABLE>
 
 *Breakpoint sales charges are computed both on a dollar basis and on the  basis
  of  the  number of  Units  purchased, using  the  equivalent of  500  Units to
  $50,000, 2,500 Units  to $250,000,  etc., and will  be applied  on that  basis
  which is more favorable to the purchaser.
 
    The  secondary market sales charges above are  expressed as a percent of the
net amount invested; expressed  as a percent of  the Public Offering Price,  the
maximum  sales charge on  any Trust, including one  consisting entirely of Bonds
with 16 years  or more to  maturity, would be  5.50% (5.820% of  the net  amount
invested).  The  actual secondary  market sales  charge  included in  the Public
Offering Price of  any particular  Trust will depend  on the  maturities of  the
Bonds in the portfolio of such Trust.
 
    Pursuant to the terms of the Indenture, the Trustee may terminate a Trust if
the  net asset value of such Trust, as shown by any evaluation, is less than 20%
of the original principal amount of the Trust.
 
    At all  times while  Units are  being  offered for  sale, the  Sponsor  will
appraise  or cause to  be appraised daily  the value of  the underlying Bonds in
each Trust as of 4:00 p.m. eastern time on each day on which the New York  Stock
Exchange  (the "Exchange") is normally open  and will adjust the Public Offering
Price of the Units commensurate with such appraisal. Such Public Offering  Price
will be effective for all orders received by a dealer or the Sponsor at or prior
to  4:00 p.m. eastern time on each such day. Orders received after that time, or
on a day when the Exchange is closed for a scheduled holiday or weekend, will be
held until the next determination of price.
 
    Accrued interest from the preceding Record  Date to, but not including,  the
settlement  date of the transaction (three business days after purchase) will be
added to the Public Offering Price to determine the purchase price of Units. See
"WHAT IS ACCRUED INTEREST?".
 
    The graduated sales  charges set forth  above will apply  on all  applicable
purchases  of Nuveen investment  company securities on  any one day  by the same
purchaser in the amounts stated, and  for this purpose purchases of this  Series
will be aggregated with concurrent purchases of any other Series or of shares of
any  open-end management  investment company of  which the  Sponsor is principal
underwriter and with respect to the purchase of which a sales charge is imposed.
Purchases by or  for the  account of  an individual and  his or  her spouse  and
children  under 21 years of age  ("immediate family members") will be aggregated
to determine the applicable sales charge.  The graduated sales charges are  also
applicable  to a trustee  or other fiduciary purchasing  securities for a single
trust estate or single fiduciary account.  Units may be purchased at the  Public
Offering Price without a sales charge by officers or directors and by bona fide,
full-time  employees  of  Nuveen, Nuveen  Advisory  Corp.,  Nuveen Institutional
Advisory Corp.  and  The John  Nuveen  Company,  including in  each  case  these
individuals and their immediate family members (as defined above).
 
    Units  may be  purchased in  the primary or  secondary market  at the Public
Offering Price for  non-breakpoint purchases  minus the  concession the  Sponsor
typically  allows to brokers and dealers  for non-breakpoint purchases (see "HOW
UNITS OF  THE TRUSTS  ARE DISTRIBUTED  TO  THE PUBLIC?")  by (1)  investors  who
purchase  Units  through  registered  investment  advisers,  certified financial
planners and registered broker-dealers who  in each case either charge  periodic
fees  for financial planning, investment  advisory or asset management services,
or provide such services in connection  with the establishment of an  investment
account  for which a comprehensive "wrap fee"  charge is imposed, (2) bank trust
departments investing  funds over  which they  exercise exclusive  discretionary
investment  authority and  that are  held in  a fiduciary,  agency, custodial or
similar capacity, (3) any person who for at least 90 days, has been an  officer,
director  or bona fide employee of any firm offering Units for sale to investors
or their  immediate family  members  (as defined  above)  and (4)  officers  and
directors  of  bank  holding companies  that  make Units  available  directly or
through  subsidiaries  or  bank  affiliates.  Notwithstanding  anything  to  the
contrary  in  this  Prospectus,  such investors,  bank  trust  departments, firm
employees and bank  holding company  officers and directors  who purchase  Units
through  this  program will  not receive  sales  charge reductions  for quantity
purchases.
 
                                       10
<PAGE>
    The initial or primary Public Offering Price  of the Units in each Trust  is
based upon a pro rata share of the OFFERING prices per Unit of the Bonds in such
Trust  plus the  applicable sales charge.  The secondary  market Public Offering
Price of each Trust is based upon a pro rata share of the BID prices per Unit of
the Bonds in such Trust plus the applicable sales charge. The OFFERING prices of
Bonds in a Trust may be expected to average between 1/2% to 2% more than the BID
prices of such  Bonds. The difference  between the bid  side evaluation and  the
offering side evaluation of the Bonds in each Trust on the business day prior to
the Date of Deposit is shown in the discussion of each Trust portfolio.
 
    Whether  or not Units are being offered for sale, the Sponsor will determine
the aggregate value of each Trust as of 4:00 p.m. eastern time: (i) on each June
30 or December 31 (or, if such date is not a business day, the last business day
prior thereto), (ii) on any day on  which a Unit is tendered for redemption  (or
the  next succeeding business day  if the date of  tender is a non-business day)
and (iii) at such other times as may be necessary. For this purpose, a "business
day" shall be any day on which  the Exchange is normally open. (See "UNIT  VALUE
AND EVALUATION.")
 
MARKET FOR UNITS
 
During  the  initial public  offering period,  the Sponsor  intends to  offer to
purchase Units of each  Trust at a  price equivalent to the  pro rata share  per
Unit  of the OFFERING prices of the Bonds in such Trust (plus accrued interest).
Afterward, although  it  is not  obligated  to do  so,  the Sponsor  intends  to
maintain  a secondary  market for  Units of  each Trust  at its  own expense and
continuously to offer  to purchase  Units of each  Trust at  prices, subject  to
change  at  any time,  which  are based  upon  the BID  prices  of Bonds  in the
respective portfolios of the  Trusts. UNITHOLDERS WHO WISH  TO DISPOSE OF  THEIR
UNITS SHOULD INQUIRE OF THE TRUSTEE OR THEIR BROKER AS TO THE CURRENT REDEMPTION
PRICE. (See "HOW UNITS MAY BE REDEEMED WITHOUT CHARGE?".) In connection with its
secondary  marketmaking activities, the Sponsor may from time to time enter into
secondary market  joint  account  agreements with  other  brokers  and  dealers.
Pursuant to such an agreement the Sponsor will purchase Units from the broker or
dealer at the bid price and will place the Units into a joint account managed by
the  Sponsor; sales from  the account will  be made in  accordance with the then
current prospectus and the Sponsor and  the broker or dealer will share  profits
and  losses in  the joint account  in accordance  with the terms  of their joint
account agreement.
 
    Certificates, if any, for Units are  delivered to the purchaser as  promptly
after the date of settlement (three business days after purchase) as the Trustee
can  complete  the mechanics  of registration,  normally  within 48  hours after
registration instructions are received. Purchasers of Units to whom Certificates
are issued will be unable  to exercise any right  of redemption until they  have
received  their Certificates as tender of the Certificate, properly endorsed for
transfer. (See "HOW UNITS MAY BE REDEEMED WITHOUT CHARGE?".)
 
WHAT IS ACCRUED INTEREST?
 
Accrued interest is the accumulation of unpaid interest on a bond from the  last
day  on which  interest thereon  was paid.  Interest on  Bonds in  each Trust is
accounted for daily on an accrual basis. For this reason, the purchase price  of
Units  of a Trust will  include not only the Public  Offering Price but also the
proportionate share  of accrued  interest  to the  date of  settlement.  Accrued
interest  does not  include accrual  of original  issue discount  on zero coupon
bonds, Stripped Obligations  or other  original issue  discount bonds.  Interest
accrues  to the  benefit of Unitholders  commencing with the  settlement date of
their purchase transaction.
 
    In an effort to reduce the  amount of accrued interest that investors  would
have  to pay in addition to the Public Offering Price, the Trustee has agreed to
advance to each Trust the amount of accrued interest due on the Bonds as of  the
Date  of Deposit (which has been designated  the first Record Date for all plans
of distribution).  This accrued  interest will  be paid  to the  Sponsor as  the
holder  of record of all Units on  the Date of Deposit. Consequently, the amount
of accrued interest  to be  added to  the Public  Offering Price  of Units  will
include  only accrued interest from  the Date of Deposit  to, but not including,
the date of  settlement of the  investor's purchase (three  business days  after
purchase), less any distributions from the related Interest Account. The Trustee
will  recover its  advancements (without interest  or other cost  to the Trusts)
from interest received on the Bonds deposited in each Trust.
 
    The Trustee has no  cash for distribution to  Unitholders until it  receives
interest  payments on the Bonds in the  Trusts. Since municipal bond interest is
accrued daily but  paid only  semi-annually, during  the initial  months of  the
Trusts,  the Interest Accounts,  consisting of accrued  but uncollected interest
and collected interest  (cash), will  be predominantly  the uncollected  accrued
interest that is not available for distribution. However, due to advances by the
Trustee,  the Trustee will provide a first distribution between approximately 30
and 60 days after the Date of Deposit. Assuming each Trust retains its  original
size  and composition  and expenses  and fees  remain the  same, annual interest
collected and distributed  will approximate  the estimated  Net Annual  Interest
Income  stated herein. However, the  amount of accrued interest  at any point in
time will  be  greater than  the  amount that  the  Trustee will  have  actually
received and distributed to the Unitholders. Therefore, there will always remain
an  item of  accrued interest  that is  included in  the Purchase  Price and the
redemption price of the Units.
 
    Interest is accounted  for daily and  a proportionate share  of accrued  and
undistributed  interest computed from the preceding  Record Date is added to the
daily valuation of each Unit of each  Trust. (See Part A of this Prospectus  and
"WHEN ARE DISTRIBUTIONS MADE TO UNITHOLDERS?".) As Bonds mature, or are redeemed
or  sold,  the  accrued  interest  applicable to  such  bonds  is  collected and
subsequently distributed to Unitholders. Unitholders who
 
                                       11
<PAGE>
sell or redeem all or a portion of their Units will be paid their  proportionate
share  of  the  remaining accrued  interest  to,  but not  including,  the third
business day following the date of sale or tender.
 
WHAT ARE ESTIMATED LONG TERM RETURN AND ESTIMATED CURRENT RETURN?
 
The Estimated Long Term Return for each Trust is a measure of the return to  the
investor  expected  to be  earned  over the  estimated  life of  the  Trust. The
Estimated Long Term Return represents an  average of the yields to maturity  (or
call)  of  the Bonds  in  the Trust's  portfolio  calculated in  accordance with
accepted bond practice and adjusted to reflect expenses and sales charges. Under
accepted bond practice, tax-exempt bonds are customarily offered to investors on
a "yield price" basis, which involves computation of yield to maturity or to  an
earlier  call date  (whichever produces the  lower yield), and  which takes into
account not only the interest payable on the bonds but also the amortization  or
accretion  of  any premium  over,  or discount  from,  the par  (maturity) value
inherent in the bond's purchase price. In the calculation of Estimated Long Term
Return, the average yield for the Trust's portfolio is derived by weighting each
Bond's yield by the market value of the Bond and by the amount of time remaining
to the date to  which the Bond  is priced. This weighted  average yield is  then
adjusted  to  reflect estimated  expenses, is  compounded, and  is reduced  by a
factor which represents the amortization of  the sales charge over the  expected
average  life of the Trust. The Estimated  Long Term Return calculation does not
take into account the effect  of a first distribution which  may be less than  a
regular  distribution or may  be paid at some  point after 30  days (or a second
distribution which may be  less than a normal  distribution for Unitholders  who
choose  quarterly or  semi-annual plans of  distribution), and it  also does not
take into account the difference in timing of payments to Unitholders who choose
quarterly or semi-annual plans  of distribution, each of  which will reduce  the
return.
 
    Estimated  Current Return  is computed by  dividing the  Net Annual Interest
Income per Unit by the Public Offering Price. In contrast to Estimated Long Term
Return, Estimated Current Return does not reflect the amortization of premium or
accretion of discount, if any, on the Bonds in the Trust's portfolio. Net Annual
Interest Income per Unit is calculated by dividing the annual interest income to
the Trust, less estimated expenses, by the number of Units outstanding.
 
    Net Annual Interest  Income per  Unit, used to  calculate Estimated  Current
Return,  will vary  with changes  in fees  and expenses  of the  Trustee and the
Evaluator and  with the  redemption,  maturity, exchange  or  sale of  Bonds.  A
Unitholder's  actual return may vary  significantly from the Estimated Long-Term
Return, based  on their  holding  period, market  interest rate  changes,  other
factors  affecting  the  prices  of  individual  bonds  in  the  portfolio,  and
differences between  the expected  remaining  life of  portfolio bonds  and  the
actual length of time that they remain in the Trust; such actual holding periods
may be reduced by termination of the Trust, as described in "OTHER INFORMATION."
Since  both  the Estimated  Current Return  and the  Estimated Long  Term Return
quoted herein are  based on  the market  value of  the underlying  Bonds on  the
business  day prior  to the  Date of  Deposit, subsequent  calculations of these
performance  measures  will  reflect  the  then  current  market  value  of  the
underlying  Bonds and may be higher or lower. The Sponsor will provide estimated
cash flow  information relating  to a  Trust without  charge to  each  potential
investor  in a Trust who  receives this prospectus and  makes an oral or written
request to the Sponsor for such information.
 
    A portion of the  monies received by  a Trust may be  treated, in the  first
year  only, as a return of principal due to the inclusion in the Trust portfolio
of "when-issued"  or  other  Bonds  having delivery  dates  after  the  date  of
settlement  for purchases  made on  the Date of  Deposit. A  consequence of this
treatment is that in the computation  of Estimated Current Return for the  first
year, such monies are excluded from Net Annual Interest Income and treated as an
adjustment  to the Public Offering Price. (See "Essential Information" appearing
in Part A  of this  Prospectus, "COMPOSITION  OF TRUSTS"  and "WHAT  IS THE  TAX
STATUS OF UNITHOLDERS?")
 
    A  comparison of tax-free  and equivalent taxable  estimated current returns
with the returns on  various taxable investments is  one element to consider  in
making  an  investment  decision. The  Sponsor  may  from time  to  time  in its
advertising and sales materials compare the then current estimated returns on  a
Trust  and returns  over specified periods  on other similar  Nuveen Trusts with
returns on taxable investments such as corporate or U.S. Government bonds,  bank
CD's  and  money  market accounts  or  money  market funds,  each  of  which has
investment characteristics  that  may  differ  from those  of  the  Trust.  U.S.
Government  bonds, for example, are  backed by the full  faith and credit of the
U.S. Government and bank CD's and money market accounts are insured by an agency
of the federal government. Money market accounts and money market funds  provide
stability  of principal, but pay interest at  rates that vary with the condition
of the short-term debt market. The investment characteristics of the Trusts  are
described more fully elsewhere in the Prospectus.
 
HOW WAS THE PRICE OF THE BONDS DETERMINED AT THE DATE OF DEPOSIT?
 
The prices at which the Bonds deposited in the Trusts would have been offered to
the  public on the business day prior to  the Date of Deposit were determined by
the Trustee on the basis  of an evaluation of such  Bonds prepared by Kenny  S&P
Evaluation  Services, a  division of  J. J.  Kenny Co.,  Inc., a  firm regularly
engaged in the business of  evaluating, quoting or appraising comparable  bonds.
With respect to Bonds in Insured Trusts and insured Bonds in Traditional Trusts,
Kenny  S&P Evaluation Services, a  division of J. J.  Kenny Co., Inc., evaluated
the Bonds as so insured. (See "WHY AND HOW ARE THE BONDS INSURED?".)
 
                                       12
<PAGE>
    The amount by which  the Trustee's determination of  the OFFERING PRICES  of
the  Bonds deposited  in the Trusts  was greater or  less than the  cost of such
Bonds to  the  Sponsor was  PROFIT  OR LOSS  to  the Sponsor  exclusive  of  any
underwriting  profit.  (See Part  A of  this Prospectus.)  The Sponsor  also may
realize FURTHER PROFIT OR  SUSTAIN FURTHER LOSS as  a result of fluctuations  in
the  Public Offering  Price of the  Units. Cash,  if any, made  available to the
Sponsor prior to the settlement  date for a purchase of  Units, or prior to  the
acquisition  of all Portfolio securities by a Trust, may be available for use in
the Sponsor's business, and may be of benefit to the Sponsor.
 
WHAT IS THE TAX STATUS OF UNITHOLDERS?
 
At the  respective times  of issuance  of the  Bonds, opinions  relating to  the
validity  thereof and to  the exemption of interest  thereon from Federal income
tax were rendered  by bond  counsel to  the respective  issuing authorities.  In
addition,  with respect to  State Trusts, where applicable,  bond counsel to the
issuing authorities rendered opinions  as to the exemption  of interest on  such
Bonds,  when held by residents  of the state in which  the issuers of such Bonds
are located, from state income taxes and certain state or local intangibles  and
local  income taxes. For a discussion of the tax status of State Trusts see Part
A of this Prospectus. Neither the Sponsor nor its counsel have made any  special
review  for the Trusts of the proceedings  relating to the issuance of the Bonds
or of  the basis  for the  opinions  rendered in  connection therewith.  If  the
interest  on a Bond should be determined to be taxable, the Bond would generally
have to  be sold  at a  substantial discount.  In addition,  investors could  be
required  to pay  income tax  on interest  received prior  to the  date of which
interest is determined to be taxable.
 
    Federally tax-exempt income, including income  on Units of the Trusts,  will
be taken into consideration in computing the portion, if any, of social security
benefits  received that will be included in a taxpayer's gross income subject to
the Federal income tax.
 
    Gain realized on the sale or redemption of the Bonds by the Trustee or of  a
Unit  by  a Unitholder  is includable  in  gross income  for Federal  income tax
purposes, and may be  includable in gross income  for state tax purposes.  (Such
gain  does not  include any  amounts received  in respect  of tax-exempt accrued
interest  or  accrued  original  issue  discount,  if  any.)  A  portion  of   a
Unitholder's  gain, to the extent of accreted market discount, may be treated as
ordinary income rather than capital gain if the Bonds were purchased by a  Trust
at a market discount or if the Unitholder purchased his or her Units at a market
discount  on or  after April 30,  1993. Market  discount can arise  based on the
price the Trust pays for the Bonds or the price a Unitholder pays for his or her
Units. Market  discount that  accretes while  the Trust  holds a  Bond would  be
recognized  as ordinary  income by the  Unitholders when  principal payments are
received on the Bond, upon sale  or at redemption (including early  redemption),
or  upon the sale or redemption of his  or her Units, unless a Unitholder elects
to include market discount in taxable income as it accrues. The market  discount
rules  are complex and  Unitholders should consult  their tax advisors regarding
these rules and their application.
 
    In the opinion of Chapman and Cutler, Counsel to the Sponsor, under existing
law:
 
    (1) the Trusts  are not  associations taxable  as corporations  for  Federal
        income  tax purposes. Tax-exempt interest received by each of the Trusts
        on  Bonds  deposited  therein  will  retain  its  status  as  tax-exempt
        interest,  for Federal income tax purposes,  when received by the Trusts
        and when distributed  to the  Unitholders, except  that the  alternative
        minimum  tax and environmental  tax (the "Superfund  Tax") applicable to
        corporate Unitholders  may, in  certain  circumstances, include  in  the
        amount  on which  such taxes  are calculated  a portion  of the interest
        income received by  the Trust.  See "CERTAIN TAX  MATTERS APPLICABLE  TO
        CORPORATE UNITHOLDERS", below;
 
    (2) each  Unitholder of a Trust is considered to  be the owner of a pro rata
        portion of such Trust under Subpart E, subchapter J of Chapter 1 of  the
        Internal Revenue Code of 1986 (the "Code") and will have a taxable event
        when  the Trust  disposes of  a Bond or  when the  Unitholder redeems or
        sells Units. Unitholders must  reduce the tax basis  of their Units  for
        their  share of accrued interest received by the Trust, if any, on Bonds
        delivered after  the  date the  Unitholders  pay for  their  Units  and,
        consequently,  such Unitholders may have an  increase in taxable gain or
        reduction in capital loss  upon the disposition of  such Units. Gain  or
        loss  upon the sale or redemption of  Units is measured by comparing the
        proceeds of  such sale  or redemption  with the  adjusted basis  of  the
        Units.  If the  Trustee disposes of  Bonds (whether by  sale, payment at
        maturity, redemption or otherwise),  gain or loss  is recognized to  the
        Unitholder. The amount of any such gain or loss is measured by comparing
        the  Unitholder's  pro  rata  share  of  the  total  proceeds  from such
        disposition with  the  Unitholder's  basis for  his  or  her  fractional
        interest  in the  asset disposed  of. In  the case  of a  Unitholder who
        purchases Units, such basis (before adjustment for earned original issue
        discount  and  amortized  bond  premium,   if  any)  is  determined   by
        apportioning  the  cost of  the  Units among  each  of the  Trust assets
        ratably according to value as of  the date of acquisition of the  Units.
        The   tax  cost  reduction   requirements  of  said   Code  relating  to
        amortization of bond  premium may, under  some circumstances, result  in
        the  Unitholder realizing a taxable gain when  his or her Units are sold
        or redeemed for an amount equal to their original cost; and
 
    (3) any amounts paid on defaulted Bonds  held by the Trustee under  policies
        of  insurance issued with respect to  such Bonds will be excludable from
        Federal gross income if, and to the same extent as, such interest  would
 
                                       13
<PAGE>
        have  been so excludable if paid by the respective issuer provided that,
        at the  time such  policies are  purchased, the  amounts paid  for  such
        policies  are reasonable,  customary and consistent  with the reasonable
        expectation that the issuer of the bonds, rather than the insurer,  will
        pay  debt  service  on  the  bonds. Paragraph  (2)  of  this  opinion is
        accordingly  applicable   to  policy   proceeds  representing   maturing
        interest.
 
In the opinion of Carter, Ledyard & Milburn, counsel to the Trustee, and, in the
absence  of a New York Trust from the Series, special counsel for the Series for
New York tax matters, under existing law:
 
        Under the income tax laws of the State and City of New York, each  Trust
    is  not an association taxable as a corporation and the income of each Trust
    will be treated as the income of the Unitholders.
 
    For a summary  of each opinion  of special counsel  to the respective  State
Trusts for state tax matters, see Part A of this Prospectus.
 
    ALL STATEMENTS IN THE PROSPECTUS CONCERNING EXEMPTION FROM FEDERAL, STATE OR
OTHER TAXES ARE THE OPINION OF COUNSEL AND ARE TO BE SO CONSTRUED.
 
    The Internal Revenue Code provides that interest on indebtedness incurred or
continued  to purchase  or carry  obligations, the  interest on  which is wholly
exempt from Federal income taxes, is not deductible. Because each Unitholder  is
treated  for Federal income tax purposes as the owner of a pro rata share of the
Bonds owned by the applicable Trust, interest on borrowed funds used to purchase
or carry Units  of such  Trust will  not be  deductible for  Federal income  tax
purposes.  Under rules used by the Internal Revenue Service for determining when
borrowed funds are  considered used for  the purpose of  purchasing or  carrying
particular  assets, the purchase  of Units may  be considered to  have been made
with borrowed funds even though the borrowed funds are not directly traceable to
the purchase of Units (however, these  rules generally do not apply to  interest
paid  on indebtedness  incurred to  purchase or  improve a  personal residence).
Similar rules are  generally applicable  for state tax  purposes. Special  rules
apply  in  the  case  of  certain  financial  institutions  that  acquire Units.
Investors with questions regarding  these issues should  consult with their  tax
advisers.
 
    For  purposes of computing  the alternative minimum  tax for individuals and
corporations, interest on certain specified tax-exempt private activity bonds is
included as a preference item. The Trusts do not include any such bonds.
 
    CERTAIN TAX  MATTERS APPLICABLE  TO CORPORATE  UNITHOLDERS. In  the case  of
certain  corporations, the alternative minimum tax  and the Superfund Tax depend
upon the corporation's alternative minimum taxable income ("AMTI"), which is the
corporation's taxable income  with certain  adjustments. One  of the  adjustment
items  used in computing AMTI and the Superfund Tax of a corporation (other than
an S corporation, Regulated Investment Company, Real Estate Investment Trust, or
REMIC) is an amount equal to 75%  of the excess of such corporation's  "adjusted
current  earnings" over an amount equal to its AMTI (before such adjustment item
and the  alternative  tax net  operation  loss deduction).  Although  tax-exempt
interest  received by each of the Trusts  on Bonds deposited therein will not be
included in the gross  income of corporations for  Federal income tax  purposes,
"adjusted current earnings" includes all tax-exempt interest, including interest
on all Bonds in the Trust and tax-exempt original issue discount.
 
    Corporate  Unitholders  are urged  to consult  their  own tax  advisers with
respect to the particular tax consequences  to them resulting under the  Federal
tax  law, including the corporate alternative minimum tax, the Superfund Tax and
the branch profits tax imposed by Section 884 of the Code.
 
    EXCEPT AS NOTED ABOVE  AND IN PART  A OF THIS  PROSPECTUS, THE EXEMPTION  OF
INTEREST ON STATE AND LOCAL OBLIGATIONS FOR FEDERAL INCOME TAX PURPOSES DOES NOT
NECESSARILY  RESULT IN EXEMPTION UNDER THE INCOME OR OTHER TAX LAWS OF ANY STATE
OR CITY. THE LAWS  OF THE SEVERAL  STATES VARY WITH RESPECT  TO THE TAXATION  OF
SUCH OBLIGATIONS.
 
WHAT ARE NORMAL TRUST OPERATING EXPENSES?
 
No  annual advisory  fee is charged  to the  Trusts by the  Sponsor. The Sponsor
does, however, receive a fee as set  forth in "Essential Information" in Part  A
of  this  Prospectus  for regularly  evaluating  the Bonds  and  for maintaining
surveillance over the portfolio. (See "UNIT VALUE AND EVALUATION.")
 
    The Trustee receives for ordinary recurring services an annual fee for  each
plan  of distribution  for each  Trust as  set forth  in "Essential Information"
appearing in Part A of this Prospectus. Each annual fee is per $1,000  principal
amount  of the underlying  Bonds in a Trust  for that portion  of the Trust that
represents  a  particular  plan  of  distribution.  The  Trustee's  fee  may  be
periodically  adjusted in response to  fluctuations in short-term interest rates
(reflecting the  cost to  the Trustee  of advancing  funds to  a Trust  to  meet
scheduled  distributions) and  may be  further adjusted  in accordance  with the
cumulative percentage  increase  of  the United  States  Department  of  Labor's
Consumer  Price Index  entitled "All  Services Less  Rent of  Shelter" since the
establishment of the Trusts.  The Trustee has  the use of  funds, if any,  being
held   in  the  Interest  and  Principal  Accounts  of  each  Trust  for  future
distributions,  payment  of  expenses   and  redemptions.  These  Accounts   are
non-interest  bearing to Unitholders. Pursuant to normal banking procedures, the
Trustee benefits  from the  use of  funds held  therein. Part  of the  Trustee's
compensation for its services to the Fund is expected to result from such use of
these funds.
 
                                       14
<PAGE>
    Premiums  for the policies  of insurance obtained  by the Sponsor  or by the
Bond issuers with respect to the Bonds in the Insured Trusts and with respect to
insured Bonds in Traditional Trusts have been paid in full prior to the  deposit
of the Bonds in the Trusts, and the value of such insurance has been included in
the evaluation of the Bonds in each Trust and accordingly in the Public Offering
Price  of Units of each Trust. There  are no annual continuing premiums for such
insurance.
 
    All or  a portion  of  the expenses  incurred  in establishing  the  Trusts,
including costs of preparing the registration statement, the trust indenture and
other  closing  documents, registering  Units with  the Securities  and Exchange
Commission and states, the  initial audit of each  Trust portfolio, legal  fees,
the  initial  fees  and  expenses  of the  Trustee  and  any  other non-material
out-of-pocket expenses, will be paid by the Trusts and amortized over the  first
five  years of such Trusts. The following  are additional expenses of the Trusts
and, when paid  by or are  owed to  the Trustee, are  secured by a  lien on  the
assets  of the  Trust or Trusts  to which  such expenses are  allocable: (1) the
expenses and costs of any action undertaken by the Trustee to protect the Trusts
and the  rights  and interests  of  the Unitholders;  (2)  all taxes  and  other
governmental  charges upon the Bonds or any part of the Trusts (no such taxes or
charges are  being  levied  or  made  or,  to  the  knowledge  of  the  Sponsor,
contemplated); (3) amounts payable to the Trustee as fees for ordinary recurring
services  and for extraordinary non-recurring  services rendered pursuant to the
Indenture, all disbursements and expenses including counsel fees (including fees
of bond  counsel which  the Trustee  may retain)  sustained or  incurred by  the
Trustee  in connection therewith; and (4)  any losses or liabilities accruing to
the Trustee without negligence, bad faith or willful misconduct on its part. The
Trustee is empowered to sell  Bonds in order to pay  these amounts if funds  are
not otherwise available in the applicable Interest and Principal Accounts.
 
    The  Indenture requires each Trust  to be audited on  an annual basis at the
expense of the Trust by independent public accountants selected by the  Sponsor.
The  Trustee  shall not  be  required, however,  to cause  such  an audit  to be
performed if its cost to a Trust shall exceed $.05 per Unit on an annual  basis.
Unitholders  of a  Trust covered by  an audit may  obtain a copy  of the audited
financial statements upon request.
 
WHEN ARE DISTRIBUTIONS MADE TO UNITHOLDERS?
 
Interest received by the Trustee on the Bonds in each Trust, including that part
of the proceeds of  any disposition of Bonds  which represents accrued  interest
and  including  any insurance  proceeds representing  interest due  on defaulted
Bonds, shall be credited to the "Interest  Account" of such Trust and all  other
moneys  received by the Trustee shall be  credited to the "Principal Account" of
such Trust.
 
    The pro rata share of  cash in the Principal Account  in each Trust will  be
computed as of each semi-annual Record Date and distributions to the Unitholders
as of such Record Date will be made on or shortly after the fifteenth day of the
month. Proceeds received from the disposition, including sale, call or maturity,
of  any of the Bonds and all amounts  paid with respect to zero coupon bonds and
Stripped Obligations will be  held in the Principal  Account and either used  to
pay  for Units  redeemed or distributed  on the Distribution  Date following the
next semi-annual Record Date. The Trustee is not required to make a distribution
from the  Principal  Account  of  any Trust  unless  the  amount  available  for
distribution in such account equals at least ten cents per Unit.
 
    The pro rata share of the Interest Account in each Trust will be computed by
the  Trustee each month as of each Record Date and distributions will be made on
or shortly after the fifteenth day of the month to Unitholders of such Trust  as
of the Record Date who are entitled to distributions at that time under the plan
of  distribution chosen. Persons who purchase Units  between a Record Date and a
Distribution Date will receive their first distribution on the Distribution Date
following the next Record Date under the applicable plan of distribution.
 
    Purchasers of  Units  who desire  to  receive interest  distributions  on  a
monthly or quarterly basis may elect to do so at the time of purchase during the
initial  public offering  period. Those indicating  no choice will  be deemed to
have chosen the  semi-annual distribution  plan. All  Unitholders, however,  who
purchase  Units during the initial  public offering period and  who hold them of
record on the first Record Date will receive the first distribution of interest.
Thereafter, Record Dates for monthly distributions will be the first day of each
month; Record  Dates  for quarterly  distributions  will  be the  first  day  of
February,   May,  August  and   November;  and  Record   Dates  for  semi-annual
distributions will be  the first day  of May and  November. See Part  A of  this
Prospectus for details of distributions per Unit of each Trust under the various
plans  based upon estimated Net  Annual Interest Income at  the Date of Deposit.
The amount of  the regular distributions  will generally change  when Bonds  are
redeemed, mature or are sold or when fees and expenses increase or decrease. For
the  purpose of minimizing  fluctuations in the  distributions from the Interest
Account of a Trust, the Trustee is authorized to advance such amounts as may  be
necessary  to provide for interest distributions of approximately equal amounts.
The Trustee shall be  reimbursed, without interest, for  any such advances  from
funds  in  the Interest  Account of  such  Trust. The  Trustee's fee  takes into
account the costs  attributable to  the outlay of  capital needed  to make  such
advances.
 
    The  plan of  distribution selected  by a  Unitholder will  remain in effect
until changed.  Unitholders  purchasing  Units  in  the  secondary  market  will
initially  receive distributions  in accordance with  the election  of the prior
owner. Unitholders desiring to  change their plan of  distribution may do so  by
sending   a   written  notice   requesting   the  change,   together   with  any
Certificate(s), to  the  Trustee. The  notice  and any  Certificate(s)  must  be
received by the
 
                                       15
<PAGE>
Trustee  not later than  the semi-annual Record  Date to be  effective as of the
semi-annual distribution  following  the  subsequent  semi-annual  Record  Date.
Unitholders  are requested to make any such  changes within 45 days prior to the
applicable Record  Date.  Certificates should  only  be sent  by  registered  or
certified  mail to minimize the possibility of  their being lost or stolen. (See
"OWNERSHIP AND TRANSFER OF UNITS.")
 
    As of the first day of each month the Trustee will deduct from the  Interest
Account  of a Trust or, to the extent funds are not sufficient therein, from the
Principal Account of  a Trust, amounts  needed for payment  of expenses of  such
Trust.  The Trustee also may withdraw from said accounts such amount, if any, as
it deems necessary to establish a  reserve for any governmental charges  payable
out  of such Trust. Amounts  so withdrawn shall not be  considered a part of the
Trust's assets until such time  as the Trustee shall return  all or any part  of
such amounts to the appropriate account. In addition, the Trustee shall withdraw
from  the Interest Account and the Principal  Account of a Trust such amounts as
may be necessary to  cover redemptions of  Units of such  Trust by the  Trustee.
Funds  which are available for future  distributions, redemptions and payment of
expenses are held in accounts which are non-interest bearing to Unitholders  and
are available for use by the Trustee pursuant to normal banking procedures.
 
ACCUMULATION PLAN
 
The  Sponsor  is  also  the  principal  underwriter  of  the  Accumulation Funds
described  in  the  following  table.  Each  of  these  funds  is  an  open-end,
diversified  management investment company into  which Unitholders may choose to
reinvest  Trust   distributions  automatically,   without  any   sales   charge.
(Reinvestment  generally is available  only to Unitholders  who are residents of
the states for which such portfolios  are named.) Unitholders may reinvest  both
interest  and  principal  distributions or  principal  distributions  only. Each
Accumulation Fund has  investment objectives  which differ  in certain  respects
from  those  of the  Trusts  and may  invest in  securities  which would  not be
eligible for deposit in the Trusts. The investment adviser to each  Accumulation
Fund  is Nuveen Advisory Corp., a wholly-owned  subsidiary of the Sponsor. For a
more detailed description,  Unitholders of  each Accumulation  Fund should  read
carefully  the prospectus of the Accumulation Fund in which they are interested.
For additional information concerning the Accumulation Plan see the  Information
Supplement of this Prospectus.
 
<TABLE>
<CAPTION>
                      ACCUMULATION FUND                                            GENERAL FUND DESCRIPTION
- --------------------------------------------------------------  --------------------------------------------------------------
<S>                                                             <C>
Nuveen Municipal Bond Fund                                      Tax-exempt   income  by   investing  in   long-term  municipal
                                                                securities.
Nuveen Tax-Free  Reserves,  Inc.  and  Nuveen  Tax-Free  Money
Market Fund, Inc.:
Nuveen  Massachusetts  Tax-Free Money  Market Fund  Nuveen New  Tax-exempt and in certain cases double and triple tax-  exempt
York Tax-Free Money Market Fund                                 "money market" funds with checkwriting privileges.
Nuveen California Tax-Free Fund:
Nuveen California Tax-Free Value Fund                           Double  tax-exempt income by investing in long-term investment
                                                                grade California tax-exempt securities.
Nuveen California Insured Tax-Free Value Fund                   Double tax-exempt income  by investing  in insured  California
                                                                tax-exempt securities.
Nuveen California Tax-Free Money Market Fund                    California  tax-exempt "money  market" fund  with checkwriting
                                                                privileges.
Nuveen Tax-Free  Bond Fund,  Inc.  and the  Nuveen  Multistate
Tax-Free Trust:
Nuveen  Massachusetts  Tax-Free  Value Fund,  Nuveen  New York  Double and  in  certain  cases  triple  tax-exempt  income  by
Tax-Free  Value Fund, Nuveen Ohio  Tax-Free Value Fund, Nuveen  investing in tax-exempt securities in the state for which  the
New  Jersey Tax-Free Value Fund, Nuveen Arizona Tax-Free Value  portfolio is named.
Fund, Nuveen  Florida  Tax-Free Value  Fund,  Nuveen  Maryland
Tax-Free  Value  Fund,  Nuveen Michigan  Tax-Free  Value Fund,
Nuveen Pennsylvania Tax-Free  Value Fund  and Nuveen  Virginia
Tax-Free Value Fund
Nuveen Insured Tax-Free Bond Fund, Inc.:
Nuveen  Insured  Municipal  Bond  Fund,  Nuveen  Massachusetts  Tax-exempt and in certain cases double and triple tax-  exempt
Insured  Tax-Free Value Fund  and the Nuveen  New York Insured  funds investing in insured tax-exempt securities in the  state
Tax-Free Value Fund.                                            for which the portfolio is named.
</TABLE>
 
Shareholder  Services, Inc.  will mail to  each participant  in the Accumulation
Plan a quarterly  statement containing  a record of  all transactions  involving
purchases of Accumulation Fund shares (or fractions thereof) with Trust interest
distributions or as a result of reinvestment of Accumulation Fund dividends. Any
distribution of principal used
 
                                       16
<PAGE>
to  purchase  shares of  an Accumulation  Fund will  be separately  confirmed by
Shareholder Services, Inc. Unitholders will also receive distribution statements
from the Trustee detailing  the amounts transferred  to their Accumulation  Fund
accounts.
 
Participants  may at any time, by so  notifying the Trustee in writing, elect to
change  the  Accumulation  Fund  into   which  their  distributions  are   being
reinvested,  to change from principal only  reinvestment to reinvestment of both
principal and interest or vice versa, or to terminate their participation in the
Accumulation Plan altogether and receive future distributions on their Units  in
cash.  There will be no  charge or other penalty for  such change of election or
termination. The character of Trust  distributions for income tax purposes  will
remain unchanged even if they are reinvested in an Accumulation Fund.
 
HOW DETAILED ARE REPORTS TO UNITHOLDERS?
 
The  Trustee  shall  furnish Unitholders  of  a  Trust in  connection  with each
distribution, a statement of the amount of  interest, if any, and the amount  of
other  receipts (received  since the preceding  distribution) being distributed,
expressed in each case  as a dollar  amount representing the  pro rata share  of
each Unit of a Trust outstanding and a year to date summary of all distributions
paid  on said Units.  Within a reasonable period  of time after  the end of each
calendar year, the Trustee shall furnish to  each person who at any time  during
the  calendar  year was  a registered  Unitholder  of a  Trust a  statement with
respect to  such  Trust  (i)  as to  the  Interest  Account:  interest  received
(including  amounts  representing  interest  received  upon  any  disposition of
Bonds), and, except  for any  State Trust, the  percentage of  such interest  by
states  in which the issuers  of the Bonds are  located, deductions for fees and
expenses of such Trust, redemption of Units and the balance remaining after such
distributions and deductions,  expressed in  each case  both as  a total  dollar
amount  and as  a dollar  amount representing  the pro  rata share  of each Unit
outstanding on the  last business  day of  such calendar  year; (ii)  as to  the
Principal  Account: the dates of  disposition of any Bonds  and the net proceeds
received therefrom (excluding  any portion representing  accrued interest),  the
amount  paid for purchase of Replacement  Bonds, the amount paid upon redemption
of Units, deductions for  payment of applicable taxes  and fees and expenses  of
the  Trustee, and the balance remaining  after such distributions and deductions
expressed both as a total dollar amount and as a dollar amount representing  the
pro  rata  share of  each  Unit outstanding  on the  last  business day  of such
calendar year;  (iii)  a  list  of  the Bonds  held  and  the  number  of  Units
outstanding  on the last business day of such calendar year; (iv) the Unit Value
based upon the last computation thereof made during such calendar year; and  (v)
amounts actually distributed during such calendar year from the Interest Account
and  from  the Principal  Account, separately  stated,  expressed both  as total
dollar amounts and  as dollar amounts  representing the pro  rata share of  each
Unit  outstanding. Each annual  statement will reflect  pertinent information in
respect of  all  plans of  distribution  so  that Unitholders  may  be  informed
regarding the results of other plans of distribution.
 
UNIT VALUE AND EVALUATION
 
The  value of each  Trust is determined by  the Sponsor on the  basis of (1) the
cash on hand in the Trust or moneys  in the process of being collected, (2)  the
value  of the Bonds in  the Trust based on  the BID prices of  the Bonds and (3)
interest  accrued  thereon   not  subject  to   collection,  LESS  (1)   amounts
representing  taxes or governmental charges payable out of the Trust and (2) the
accrued expenses of the Trust. The result of such computation is divided by  the
number  of Units of such  Trust outstanding as of  the date thereof to determine
the per Unit value ("Unit Value") of  such Trust. The Sponsor may determine  the
value  of the Bonds in each Trust (1) on  the basis of current BID prices of the
Bonds obtained from dealers or brokers who customarily deal in bonds  comparable
to  those held by the Trust, (2) if bid  prices are not available for any of the
Bonds, on the basis of bid prices for comparable bonds, (3) by causing the value
of the Bonds to be determined by  others engaged in the practice of  evaluating,
quoting  or appraising comparable bonds or (4)  by any combination of the above.
Although the Unit Value of each Trust is  based on the BID prices of the  Bonds,
the Units are sold initially to the public at the Public Offering Price based on
the OFFERING prices of the Bonds.
 
    Because  the insurance obtained  by the Sponsor  or by the  issuers of Bonds
with respect to  the Bonds in  the Insured  Trusts and with  respect to  insured
Bonds  in Traditional Trusts is effective so long as such Bonds are outstanding,
such insurance will be  taken into account in  determining the bid and  offering
prices  of such  Bonds and therefore  some value attributable  to such insurance
will be included in the value of Units of Trusts that include such Bonds.
 
HOW UNITS OF THE TRUSTS ARE DISTRIBUTED TO THE PUBLIC
 
John Nuveen & Co. Incorporated is the Sponsor and sole Underwriter of the Units.
It is  the  intention  of  the  Sponsor  to  qualify  Units  of  National,  Long
Intermediate,  Intermediate, Short Intermediate  and Short Term  Trusts for sale
under the  laws of  substantially all  of the  states of  the United  States  of
America,  and Units  of State Trusts  only in the  state for which  the Trust is
named and selected other states.
 
                                       17
<PAGE>
    Promptly following the deposit of Bonds in exchange for Units of the Trusts,
it is the practice of the Sponsor to place all of the Units as collateral for  a
letter or letters of credit from one or more commercial banks under an agreement
to  release such Units from time to  time as needed for distribution. Under such
an arrangement  the Sponsor  pays  such banks  compensation  based on  the  then
current  interest  rate. This  is a  normal  warehousing arrangement  during the
period of  distribution of  the Units  to public  investors. To  facilitate  the
handling  of  transactions,  sales of  Units  shall be  limited  to transactions
involving a minimum of either $5,000 or 50 Units, whichever is less. The Sponsor
reserves the right to reject, in whole or in part, any order for the purchase of
Units.
 
    The Sponsor plans to allow a  discount to brokers and dealers in  connection
with   the  primary  distribution   of  Units  and   also  in  secondary  market
transactions. The primary market discounts are as follows:
 
<TABLE>
<CAPTION>
                                                         DISCOUNT PER UNIT
                                --------------------------------------------------------------------
<S>                             <C>         <C>            <C>            <C>            <C>
                                 NATIONAL    LONG INTER-                  SHORT INTER-
                                AND STATE      MEDIATE     INTERMEDIATE      MEDIATE     SHORT TERM
NUMBER OF UNITS*                  TRUSTS       TRUSTS         TRUSTS         TRUSTS        TRUSTS
- ------------------------------  ----------  -------------  -------------  -------------  -----------
Less than 500.................    $3.20         $2.90          $2.70          $2.00         $1.50
500 but less than 1,000.......     3.20         2.90           2.70           2.00          1.50
1,000 but less than 2,500.....     3.20         2.70           2.50           1.80          1.30
2,500 but less than 5,000.....     3.20         2.45           2.25           1.55          1.05
5,000 but less than 10,000....     2.50         2.45           2.25           1.55          1.05
10,000 but less than 25,000...     2.00         2.00           2.00           1.30           .80
25,000 but less than 50,000...     1.75         1.75           1.75           1.30           .60
50,000 or more................     1.75         1.50           1.50           1.00           .60
</TABLE>
 
*Breakpoint sales charges and related dealer concessions are computed both on  a
 dollar  basis and  on the  basis of  the number  of Units  purchased, using the
 equivalent of 500 Units to  $50,000, 2,500 Units to  $250,000 etc. and will  be
 applied on that basis which is more favorable to the purchaser.
 
    The  Sponsor currently intends  to maintain a secondary  market for Units of
each Trust.  See "MARKET  FOR UNITS."  The amount  of the  dealer concession  on
secondary  market purchases of Trust Units  through the Sponsor will be computed
based upon the value of  the Bonds in the  Trust portfolio, including the  sales
charge  computed as described in "HOW IS THE PUBLIC OFFERING PRICE DETERMINED?",
and adjusted to reflect  the cash position of  the Trust principal account,  and
will vary with the size of the purchase as shown in the following table:
 
<TABLE>
<CAPTION>
                                                               AMOUNT OF PURCHASE*
                            -----------------------------------------------------------------------------------------
<S>                         <C>        <C>        <C>        <C>        <C>        <C>         <C>         <C>
                                        $50,000   $100,000   $250,000   $500,000   $1,000,000  $2,500,000
                              UNDER       TO         TO         TO         TO          TO          TO      $5,000,000
YEARS TO MATURITY            $50,000    $99,999   $249,999   $499,999   $999,999   $2,499,999  $4,999,999   OR MORE
- --------------------------  ---------  ---------  ---------  ---------  ---------  ----------  ----------  ----------
Less than 1...............      0          0          0          0          0          0           0           0
1 but less than 2.........    1.00%      .90%       .85%       .80%       .70%        .55%       .467%       .389%
2 but less than 3.........    1.30%      1.20%      1.10%      1.00%      .90%        .73%       .634%       .538%
3 but less than 4.........    1.60%      1.45%      1.35%      1.25%      1.10%       .90%       .781%       .662%
4 but less than 5.........    2.00%      1.85%      1.75%      1.55%      1.40%      1.25%       1.082%      .914%
5 but less than 7.........    2.30%      2.15%      1.95%      1.80%      1.65%      1.50%       1.320%      1.140%
7 but less than 10........    2.60%      2.45%      2.25%      2.10%      1.95%      1.70%       1.496%      1.292%
10 but less than 13.......    3.00%      2.80%      2.60%      2.45%      2.30%      2.00%       1.747%      1.494%
13 but less than 16.......    3.25%      3.15%      3.00%      2.75%      2.50%      2.15%       1.878%      1.606%
16 or more................    3.50%      3.50%      3.40%      3.35%      3.00%      2.50%       2.185%      1.873%
</TABLE>
 
 *Breakpoint sales charges and related dealer concessions are computed both on a
  dollar  basis and  on the basis  of the  number of Units  purchased, using the
  equivalent of 500 Units to $50,000, 2,500 Units to $250,000, etc., and will be
  applied on that basis which is more favorable to the purchaser.
 
    The Sponsor reserves the  right to change  the foregoing dealer  concessions
from time to time.
 
    Registered  investment advisers, certified financial planners and registered
broker-dealers who  in  each case  either  charge periodic  fees  for  financial
planning,  investment  advisory or  asset management  services, or  provide such
services in connection with the establishment of an investment account for which
a comprehensive  "wrap  fee"  charge  is imposed,  and  bank  trust  departments
investing  funds  over which  they  exercise exclusive  discretionary investment
authority and  that  are held  in  a  fiduciary, agency,  custodial  or  similar
capacity,  are  not entitled  to receive  any dealer  concession for  primary or
secondary market purchases in which an investor purchases any number of Units at
the Public Offering Price for non-breakpoint purchases minus the concession  the
sponsor  typically allows  to brokers  and dealers  for non-breakpoint purchases
(see "HOW IS THE PUBLIC OFFERING PRICE DETERMINED?").
 
    Certain commercial banks are making Units  of the Trusts available to  their
customers  on  an agency  basis. A  portion of  the sales  charge paid  by these
customers is retained by or  remitted to the banks in  the amounts shown in  the
above  table.  The Glass-Steagall  Act prohibits  banks from  underwriting Trust
Units; the Act  does, however,  permit certain agency  transactions and  banking
regulators   have  not  indicated  that  these  particular  agency  transactions
 
                                       18
<PAGE>
are not permitted under the Act. In Texas and in certain other states, any  bank
making Units available must be registered as a broker-dealer under state law.
 
OWNERSHIP AND TRANSFER OF UNITS
 
The  ownership of  Units is  evidenced by book  entry positions  recorded on the
books and records of the Trustee  unless the Unitholder expressly requests  that
the  purchased Units be evidenced in Certificate form. The Trustee is authorized
to treat as the owner of Units that person who at the time is registered as such
on the books of the Trustee. Any  Unitholder who holds a Certificate may  change
to  book entry ownership by submitting to the Trustee the Certificate along with
a written request that the Units represented by such Certificate be held in book
entry form. Likewise, a Unitholder who holds Units in book entry form may obtain
a Certificate for such  Units by written  request to the  Trustee. Units may  be
held in denominations of one Unit or any multiple or fraction thereof. Fractions
of  Units are computed to three decimal  places. Any Certificates issued will be
numbered serially for identification, and  are issued in fully registered  form,
transferable  only  on the  books of  the Trustee.  Book entry  Unitholders will
receive a Book Entry Position Confirmation reflecting their ownership.
 
   
    For Trusts allowing optional plans  of distribution, Certificates for  Units
will  bear  an  appropriate notation  on  their  face indicating  which  plan of
distribution has been selected. When a change is made, the existing Certificates
must be surrendered to  the Trustee and new  Certificates issued to reflect  the
currently  effective  plan of  distribution. There  will be  no charge  for this
service. Holders of book  entry Units can change  their plan of distribution  by
making  a written  request to  the Trustee,  which will  issue a  new Book Entry
Position Confirmation to reflect such change.
    
 
    Units are transferable by  making a written request  to the Trustee and,  in
the  case of Units  evidenced by Certificate(s),  by presenting and surrendering
such Certificate(s) to the Trustee, at its  address listed on the back cover  of
this  Part B of  the Prospectus, properly  endorsed or accompanied  by a written
instrument or  instruments  of  transfer.  The  Certificate(s)  should  be  sent
registered  or  certified  mail  for  the  protection  of  the  Unitholder. Each
Unitholder must sign such written  request, and such Certificate(s) or  transfer
instrument,  exactly as his name  appears on (a) the  face of the Certificate(s)
representing the  Units  to be  transferred,  or  (b) the  Book  Entry  Position
Confirmation(s)  relating to the Units to be transferred. Such signature(s) must
be guaranteed by a guarantor acceptable to the Trustee. In certain instances the
Trustee may require  additional documents  such as,  but not  limited to,  trust
instruments, certificates of death, appointments as executor or administrator or
certificates  of corporate authority. Mutilated Certificates must be surrendered
to the Trustee in order for a replacement Certificate to be issued. Although  at
the  date hereof no charge is made and none is contemplated, a Unitholder may be
required to pay $2.00 to the  Trustee for each Certificate reissued or  transfer
of  Units requested and to  pay any governmental charge  which may be imposed in
connection therewith.
 
REPLACEMENT OF LOST, STOLEN OR DESTROYED CERTIFICATES.
 
    To obtain a  new Certificate replacing  one that has  been lost, stolen,  or
destroyed,   the   Unitholder   must  furnish   the   Trustee   with  sufficient
indemnification  and  pay  such  expenses   as  the  Trustee  may  incur.   This
indemnification  must be in the form of an Open Penalty Bond of Indemnification.
The premium for such an indemnity bond may vary, but currently amounts to 1%  of
the  market  value of  the Units  represented  by the  Certificate. In  the case
however, of  a Trust  as to  which notice  of termination  has been  given,  the
premium  currently amounts to 0.5% of the  market value of the Units represented
by such Certificate.
 
HOW UNITS MAY BE REDEEMED WITHOUT CHARGE
 
Unitholders may redeem all or a portion  of their Units by (1) making a  written
request  for such redemption (book entry Unitholders may use the redemption form
on the reverse side of their Book Entry Position Confirmation) to the Trustee at
its address  listed  on  the  back  cover of  this  Part  B  of  the  Prospectus
(redemptions  of 1,000 Units or more will require a signature guarantee), (2) in
the case of Units evidenced by a Certificate, by also tendering such Certificate
to the Trustee, duly endorsed or  accompanied by proper instruments of  transfer
with signatures guaranteed as explained above, or provide satisfactory indemnity
required  in  connection with  lost, stolen  or  destroyed Certificates  and (3)
payment of applicable governmental charges, if any. Certificates should be  sent
only  by registered or certified mail to minimize the possibility of their being
lost or stolen. (See "OWNERSHIP AND TRANSFER OF UNITS".) No redemption fee  will
be   charged.  A  Unitholder  may  authorize  the  Trustee  to  honor  telephone
instructions for  the  redemption  of  Units held  in  book  entry  form.  Units
represented  by Certificates may  not be redeemed by  telephone. The proceeds of
Units redeemed by telephone will  be sent by check  either to the Unitholder  at
the  address specified on his account or to a financial institution specified by
the Unitholder for credit to the account of the Unitholder. A Unitholder wishing
to  use  this  method  of  redemption  must  complete  a  Telephone   Redemption
Authorization  Form and  furnish the Form  to the  Trustee. Telephone Redemption
Authorization  Forms   can   be   obtained  from   a   Unitholder's   registered
representative  or by calling the  Trustee. Once the completed  Form is on file,
the Trustee will honor telephone redemption  requests by any person. The time  a
telephone redemption request is received
 
                                       19
<PAGE>
determines the "date of tender" as discussed below. The redemption proceeds will
be mailed within three business days following the telephone redemption request.
Only  Units  held in  the  name of  individuals  may be  redeemed  by telephone;
accounts registered in broker name,  or accounts of corporations or  fiduciaries
(including  among others, trustees, guardians, executors and administrators) may
not use the telephone redemption privilege.
 
    On the third business day following the date of tender, the Unitholder  will
be  entitled to receive  in cash for each  Unit tendered an  amount equal to the
Unit Value of such Trust determined by the Trustee, as of 4:00 p.m. eastern time
on the date of tender  as defined hereafter, plus  accrued interest to, but  not
including, the third business day after the date of tender ("Redemption Price").
The  price received upon redemption may be more  or less than the amount paid by
the Unitholder  depending on  the value  of the  Bonds on  the date  of  tender.
Unitholders  should  check with  the Trustee  or their  broker to  determine the
Redemption Price before tendering Units.
 
    The "date of  tender" is  deemed to  be the date  on which  the request  for
redemption  of Units is received  in proper form by  the Trustee, except that as
regards a redemption request received after 4:00 p.m. eastern time or on any day
on which the New  York Stock Exchange (the  "Exchange") is normally closed,  the
date  of tender  is the  next day on  which such  Exchange is  normally open for
trading and such request will  be deemed to have been  made on such day and  the
redemption will be effected at the Redemption Price computed on that day.
 
    Accrued  interest paid  on redemption shall  be withdrawn  from the Interest
Account of the  appropriate Trust or,  if the balance  therein is  insufficient,
from  the Principal Account of such Trust.  All other amounts paid on redemption
shall be withdrawn from the Principal Account. The Trustee is empowered to  sell
underlying  Bonds of a  Trust in order  to make funds  available for redemption.
(See "HOW BONDS MAY  BE REMOVED FROM  THE TRUSTS.") Units  so redeemed shall  be
cancelled.  To  the  extent that  Bonds  are sold  from  a Trust,  the  size and
diversity of such Trust will  be reduced. Such sales may  be required at a  time
when  Bonds would not  otherwise be sold  and might result  in lower prices than
might otherwise be realized.
 
    The Redemption Price is  determined on the  basis of the  BID prices of  the
Bonds  in each Trust, while  the initial Public Offering  Price of Units will be
determined on the  basis of the  OFFERING prices of  the Bonds as  of 4:00  p.m.
eastern  time on any day on which the  Exchange is normally open for trading and
such determination is made. As of any given time, the difference between the bid
and offering prices  of such  Bonds may  be expected to  average 1/2%  to 2%  of
principal amount. In the case of actively traded Bonds, the difference may be as
little  as 1/4 to  1/2 of 1%,  and in the  case of inactively  traded Bonds such
difference usually will not exceed 3%.
 
    The right  of redemption  may be  suspended and  payment postponed  for  any
period  during  which the  Securities  and Exchange  Commission  determines that
trading in the municipal bond market is restricted or an emergency exists, as  a
result  of  which  disposal  or  evaluation  of  the  Bonds  is  not  reasonably
practicable, or for such other periods as the Securities and Exchange Commission
may by order permit.
 
    Under regulations issued by the  Internal Revenue Service, the Trustee  will
be required to withhold a specified percentage of the principal amount of a Unit
redemption  if the Trustee has not been furnished the redeeming Unitholder's tax
identification number in the manner required by such regulations. Any amount  so
withheld  is transmitted to the Internal Revenue Service and may be recovered by
the  Unitholder  only  when  filing  his   or  her  tax  return.  Under   normal
circumstances  the Trustee  obtains the  Unitholder's tax  identification number
from the  selling  broker at  the  time the  Certificate  or Book  Entry  Return
Confirmation  is issued, and this  number is printed on  the Certificate or Book
Entry Return Confirmation and on distribution statements. If a Unitholder's  tax
identification number does not appear as described above, or if it is incorrect,
the  Unitholder should contact  the Trustee before  redeeming Units to determine
what action, if any, is required to avoid this "back-up withholding."
 
HOW UNITS MAY BE PURCHASED BY THE SPONSOR
 
The Trustee will notify the  Sponsor of any tender  of Units for redemption.  If
the  Sponsor's bid in  the secondary market  at that time  equals or exceeds the
Redemption Price it may purchase such Units by notifying the Trustee before  the
close  of business on the  second succeeding business day  and by making payment
therefor to  the  Unitholder not  later  than the  day  on which  payment  would
otherwise have been made by the Trustee. (See "HOW UNITS MAY BE REDEEMED WITHOUT
CHARGE.")  The Sponsor's current practice  is to bid at  the Redemption Price in
the secondary market. Units held by the  Sponsor may be tendered to the  Trustee
for redemption as any other Units.
 
HOW BONDS MAY BE REMOVED FROM THE TRUSTS
 
Bonds will be removed from a Trust as they mature or are redeemed by the issuers
thereof.  See Part A of  this Prospectus and "RISK  FACTORS" for a discussion of
call provisions of portfolio Bonds.
 
                                       20
<PAGE>
    The Indenture also  empowers the Trustee  to sell Bonds  for the purpose  of
redeeming  Units tendered by any Unitholder, and for the payment of expenses for
which income may not be available. Under the Indenture the Sponsor is  obligated
to  provide the Trustee with a current list of Bonds in each Trust to be sold in
such circumstances. In deciding which Bonds  should be sold the Sponsor  intends
to  consider, among  other things, such  factors as: (1)  market conditions; (2)
market  prices  of  the  Bonds;  (3)  the  effect  on  income  distributions  to
Unitholders  of the sale of various Bonds; (4) the effect on principal amount of
underlying Bonds  per Unit  of the  sale  of various  Bonds; (5)  the  financial
condition of the issuers; and (6) the effect of the sale of various Bonds on the
investment  character of the Trust. Such sales, if required, could result in the
sale of Bonds by the Trustee at prices less than original cost to the Trust.  To
the extent Bonds are sold, the size and diversity of such Trust will be reduced.
 
    In  addition, the  Sponsor is empowered  to direct the  Trustee to liquidate
Bonds upon the happening of certain other events, such as default in the payment
of principal and/or interest, an action of the issuer that will adversely affect
its ability to continue payment of the  principal of and interest on its  Bonds,
or  an  adverse  change  in  market, revenue  or  credit  factors  affecting the
investment character of the Bonds. If a default in the payment of the  principal
of  and/or interest  on any  of the Bonds  occurs, and  if the  Sponsor fails to
instruct the Trustee whether to  sell or continue to  hold such Bonds within  30
days  after notification  by the  Trustee to  the Sponsor  of such  default, the
Indenture provides that  the Trustee  shall liquidate said  Bonds forthwith  and
shall  not be liable for  any loss so incurred. The  Sponsor may also direct the
Trustee to liquidate Bonds in a Trust if the Bonds in the Trust are the  subject
of  an advanced refunding,  generally considered to be  when refunding bonds are
issued and the proceeds thereof are deposited in irrevocable trust to retire the
refunded Bonds on their redemption date.
 
    Except as stated in "COMPOSITION OF  TRUSTS" regarding the limited right  of
substitution  of Replacement  Bonds for Failed  Bonds, and  except for refunding
securities that may be exchanged for Bonds under certain conditions specified in
the Indenture, the Indenture does not  permit either the Sponsor or the  Trustee
to  acquire or deposit bonds either in  addition to, or in substitution for, any
of the Bonds initially deposited in a Trust.
 
INFORMATION ABOUT THE TRUSTEE
 
The Trustee and its address are stated on  the back cover of this Part B of  the
Prospectus. The Trustee is subject to supervision and examination by the Federal
Deposit  Insurance Corporation,  the Board of  Governors of  the Federal Reserve
System and either the Comptroller of the Currency or state banking authorities.
 
LIMITATIONS ON LIABILITIES OF SPONSOR AND TRUSTEE
 
    The Sponsor and the Trustee shall  be under no liability to Unitholders  for
taking  any action or for  refraining from any action  in good faith pursuant to
the Indenture, or for errors in judgment, but shall be liable only for their own
negligence, lack of good faith or  willful misconduct. The Trustee shall not  be
liable for depreciation or loss incurred by reason of the sale by the Trustee of
any  of the Bonds. In the  event of the failure of  the Sponsor to act under the
Indenture, the Trustee may act thereunder and shall not be liable for any action
taken by it in good faith under the Indenture.
 
    The Trustee shall not be liable for any taxes or other governmental  charges
imposed  upon or in respect of the Bonds or upon the interest thereon or upon it
as Trustee under  the Indenture or  upon or in  respect of any  Trust which  the
Trustee  may be required  to pay under any  present or future  law of the United
States of  America or  of any  other taxing  authority having  jurisdiction.  In
addition,  the  Indenture  contains  other  customary  provisions  limiting  the
liability of the Trustee.
 
SUCCESSOR TRUSTEES AND SPONSORS
 
    The Trustee or any successor trustee  may resign by executing an  instrument
of resignation in writing and filing same with the Sponsor and mailing a copy of
a  notice of resignation to all Unitholders  then of record. Upon receiving such
notice, the Sponsor is required to promptly appoint a successor trustee. If  the
Trustee becomes incapable of acting or is adjudged a bankrupt or insolvent, or a
receiver  or other public officer shall take  charge of its property or affairs,
the  Sponsor  may  remove  the  Trustee  and  appoint  a  successor  by  written
instrument.  The resignation or  removal of a  trustee and the  appointment of a
successor trustee shall become effective only when the successor trustee accepts
its appointment as such. Any successor trustee shall be a corporation authorized
to exercise  corporate  trust  powers, having  capital,  surplus  and  undivided
profits of not less than $5,000,000. Any corporation into which a trustee may be
merged  or with which it may be  consolidated, or any corporation resulting from
any merger or consolidation to  which a trustee shall be  a party, shall be  the
successor trustee.
 
    If  upon resignation of  a trustee no  successor has been  appointed and has
accepted the appointment within 30 days after notification, the retiring trustee
may apply  to  a  court of  competent  jurisdiction  for the  appointment  of  a
successor.
 
                                       21
<PAGE>
    If the Sponsor fails to undertake any of its duties under the Indenture, and
no  express  provision is  made for  action by  the Trustee  in such  event, the
Trustee may, in addition to its other  powers under the Indenture (1) appoint  a
successor sponsor or (2) terminate the Indenture and liquidate the Trusts.
 
INFORMATION ABOUT THE SPONSOR
 
John Nuveen & Co. Incorporated, the Sponsor and Underwriter, was founded in 1898
and  is  the oldest  and  largest investment  banking  firm specializing  in the
underwriting and distribution of tax-exempt securities and maintains the largest
research department in the investment  banking community devoted exclusively  to
the  analysis of municipal securities. In  1961 the Sponsor began sponsoring the
Nuveen Tax-Exempt Unit Trust and, since this  time, it has issued more than  $30
billion  in tax-exempt unit trusts, including over $8 billion in insured trusts.
The Sponsor is also principal underwriter  of 16 mutual funds and 60  closed-end
funds.  These registered open-end and  closed-end investment companies currently
have approximately  $32.8 billion  in  tax-exempt securities  under  management.
Nationwide, more than 1,000,000 individual investors have purchased Nuveen's tax
exempt  trusts and  funds. The  present corporation was  organized in  1967 as a
wholly-owned subsidiary of  Nuveen Corporation, successor  to the original  John
Nuveen  & Co. founded in 1898 as a sole proprietorship and incorporated in 1953.
In 1974, John Nuveen & Co. Incorporated became a wholly-owned subsidiary of  The
St. Paul Companies, Inc., a financial services management company located in St.
Paul,  Minnesota. On May 19, 1992,  common shares comprising a minority interest
in The John Nuveen  Company ("JNC"), a newly  organized corporation which  holds
all  of the  shares of  Nuveen, were sold  to the  general public  in an initial
public offering. St. Paul retains a controlling interest in JNC with over 70% of
JNC's shares. The Sponsor is a member of the National Association of  Securities
Dealers,  Inc. and  the Securities  Industry Association  and has  its principal
offices located in Chicago (333 W. Wacker Drive) and New York (Swiss Bank Tower,
10 East 50th Street). It maintains 14 regional offices.
 
    To help advisers and investors better understand and more efficiently use an
investment in  the  Trust to  reach  their  investment goals,  the  Sponsor  may
advertise and create specific investment programs and systems. For example, such
activities may include presenting information on how to use an investment in the
Trust,  alone or in combination with an investment in other mutual funds or unit
investment trusts sponsored by Nuveen, to accumulate assets for future education
needs or periodic payments such as  insurance premiums. The Trust's sponsor  may
produce  software or  additional sales literature  to promote  the advantages of
using the Trust to meet these and other specific investor needs.
 
OTHER INFORMATION
AMENDMENT OF INDENTURE
 
    The Indenture may  be amended  by the Trustee  and the  Sponsor without  the
consent  of any of  the Unitholders (1) to  cure any ambiguity  or to correct or
supplement any provision thereof which may be defective or inconsistent, or  (2)
to  make such  other provisions as  shall not adversely  affect the Unitholders,
provided, however, that the Indenture may not be amended to increase the  number
of Units in any Trust or to permit the deposit or acquisition of bonds either in
addition  to, or in substitution for any of the Bonds initially deposited in any
Trust except as stated in "COMPOSITION OF TRUSTS" regarding the limited right of
substitution of Replacement Bonds and  except for the substitution of  refunding
bonds  under certain circumstances. The Trustee  shall advise the Unitholders of
any amendment promptly after execution thereof.
 
TERMINATION OF INDENTURE
 
    Each Trust may be liquidated at any  time by written consent of 100% of  the
Unitholders  or by  the Trustee when  the value of  such Trust, as  shown by any
evaluation, is less than 20% of the original principal amount of such Trust  and
will  be  liquidated  by  the Trustee  in  the  event that  Units  not  yet sold
aggregating more  than 60%  of the  Units originally  created are  tendered  for
redemption  by the Sponsor thereby reducing the  net worth of such Trust to less
than 40%  of the  principal amount  of  the Bonds  originally deposited  in  the
portfolio. (See "Essential Information" appearing in Part A of this Prospectus.)
The  sale of Bonds from the Trusts upon termination may result in realization of
a lesser amount than might otherwise be realized if such sale were not  required
at such time. For this reason, among others, the amount realized by a Unitholder
upon  termination  may be  less than  the principal  amount of  Bonds originally
represented by the Units held by  such Unitholder. The Indenture will  terminate
upon the redemption, sale or other disposition of the last Bond held thereunder,
but  in no event shall it continue beyond the end of the calendar year preceding
the fiftieth anniversary of its execution for National and State Trusts,  beyond
the  end  of  the  calendar  year preceding  the  twentieth  anniversary  of its
execution for Long Intermediate,  and Intermediate Trusts or  beyond the end  of
the  calendar year  preceding the tenth  anniversary of its  execution for Short
Intermediate and Short Term Trusts.
 
    Written notice of  any termination  specifying the  time or  times at  which
Unitholders  may surrender their Certificates, if any, for cancellation shall be
given by  the  Trustee  to each  Unitholder  at  the address  appearing  on  the
 
                                       22
<PAGE>
registration  books of the Trust maintained  by the Trustee. Within a reasonable
time thereafter the Trustee shall liquidate any Bonds in the Trust then held and
shall deduct  from  the assets  of  the Trust  any  accrued costs,  expenses  or
indemnities  provided  by  the  Indenture which  are  allocable  to  such Trust,
including estimated compensation of the Trustee and costs of liquidation and any
amounts required as a reserve to provide for payment of any applicable taxes  or
other  governmental charges. The Trustee shall then distribute to Unitholders of
such Trust their pro  rata share of  the balance of  the Interest and  Principal
Accounts.  With such  distribution the  Unitholders shall  be furnished  a final
distribution  statement,  in   substantially  the  same   form  as  the   annual
distribution statement, of the amount distributable. At such time as the Trustee
in  its sole discretion shall determine that  any amounts held in reserve are no
longer necessary, it shall make distribution thereof to Unitholders in the  same
manner.
 
LEGAL OPINION
 
    The legality of the Units offered hereby has been passed upon by Chapman and
Cutler, 111 West Monroe Street, Chicago, Illinois 60603. Special counsel for the
Trusts for respective state tax matters are named in "Tax Status" for each Trust
appearing  in  Part A  of this  Prospectus.  Carter, Ledyard  & Milburn,  2 Wall
Street, New York,  New York 10005,  has acted  as counsel for  the Trustee  with
respect  to the Series, and, in the absence of a New York Trust from the Series,
as special New York tax counsel for the Series.
 
AUDITORS
 
    The "Statement  of  Condition" and  "Schedule  of Investments"  at  Date  of
Deposit  included  in Part  A of  this  Prospectus have  been audited  by Arthur
Andersen LLP, independent public  accountants, as indicated  in their report  in
Part  A  of  this Prospectus,  and  are  included herein  in  reliance  upon the
authority of said firm as experts in giving said report.
 
SUPPLEMENTAL INFORMATION
 
    Upon written or telephonic request to the Trustee, investors will receive at
no cost to  the investor supplemental  information about this  Trust, which  has
been  filed  with the  Securities  and Exchange  Commission  and is  intended to
supplement information contained in  Part A and Part  B of this Prospectus.  The
supplemental information includes
more detailed information concerning certain of the Bonds included in the Trusts
contained in the applicable Series and more specific risk information concerning
the  individual state Trusts.  This supplement also  includes additional general
information about the Sponsor and the Trusts.
 
                                       23
<PAGE>
                         NUVEEN  Tax-Exempt Unit Trusts
 
   
                              PROSPECTUS -- PART B
                               SEPTEMBER 1, 1995
    
 
<TABLE>
<C>                       <S>        <C>
                 SPONSOR             John Nuveen & Co. Incorporated
                                     333 West Wacker Drive
                                     Chicago, IL 60606-1286
                                     Telephone: 312.917.7700
 
                                     Swiss Bank Tower
                                     10 East 50th Street
                                     New York, NY 10022
                                     212.207.2000
 
                 TRUSTEE             The Chase Manhattan Bank, N.A.
                                     770 Broadway
                                     New York, NY 10003
                                     800.257.8787
 
           LEGAL COUNSEL             Chapman and Cutler
              TO SPONSOR             111 West Monroe Street
                                     Chicago, IL 60603
 
             INDEPENDENT             Arthur Andersen LLP
                  PUBLIC             33 West Monroe Street
             ACCOUNTANTS             Chicago, IL 60603
          FOR THE TRUSTS
</TABLE>
 
                                 --------------
 
           Except as to  statements made  herein furnished by  the Trustee,  the
Trustee   has  assumed  no   responsibility  for  the   accuracy,  adequacy  and
completeness of the information contained in this Prospectus.
 
           This Prospectus does not contain all of the information set forth  in
the  registration  statement  and  exhibits  relating  thereto,  filed  with the
Securities and Exchange Commission, Washington,  D.C., under the Securities  Act
of 1933, and to which reference is made.
 
           No   person  is  authorized  to  give  any  information  or  to  make
representations not contained in this Prospectus or in supplemental  information
or   sales  literature  prepared   by  the  Sponsor,   and  any  information  or
representation not contained  therein must  not be  relied upon  as having  been
authorized  by either  the Trusts, the  Trustee or the  Sponsor. This Prospectus
does not constitute  an offer to  sell, or a  solicitation of an  offer to  buy,
securities  in any State  to any person  to whom it  is not lawful  to make such
offer in such state. The Trusts are registered as a Unit Investment Trust  under
the  Investment Company Act of  1940. Such registration does  not imply that the
Trusts or any  of their  Units has  been guaranteed,  sponsored, recommended  or
approved by the United States or any State or agency or officer thereof.
<PAGE>
                         NUVEEN TAX-EXEMPT UNIT TRUSTS
 
                 ---------------------------------------------
 
                             INFORMATION SUPPLEMENT
 
   
                               NUVEEN SERIES 823
    
 
   
                This   Information  Supplement  provides  additional
            information concerning  the  structure,  operations  and
            risks of a Nuveen Tax-Exempt Unit Trust not found in the
            prospectuses for the Trusts. This Information Supplement
            is  not a  prospectus and  does not  include all  of the
            information that a prospective investor should  consider
            before investing in a Trust. This Information Supplement
            should  be read  in conjunction with  the prospectus for
            the Trust in which an investor is considering  investing
            ("Prospectus"). Copies of the Prospectus can be obtained
            by  calling  or  writing the  Trustee  at  the telephone
            number  and  address   indicated  in  Part   B  of   the
            Prospectus. This Information Supplement has been created

            to supplement information contained in the Prospectus.
    
 
   
                This  Information Supplement  is dated  September 7,
            1995.  Capitalized  terms  have  been  defined  in   the
            Prospectus.
    
 
                               TABLE OF CONTENTS
 
               --------------------------------------------------
 
<TABLE>
<S>                                                                           <C>
GENERAL RISK DISCLOSURE.....................................................           2
  Health Facility Obligations...............................................           2
  Housing Obligations.......................................................           2
  Single Family Mortgage Revenue Bonds......................................           2
  Federally Enhanced Obligations............................................           3
  Industrial Revenue Obligations............................................           3
  Electric Utility Obligations..............................................           3
  Transportation Facility Revenue Bonds.....................................           4
  Water and/or Sewerage Obligations.........................................           4
  University and College Revenue Obligations................................           4
  Bridge Authority and Tollroad Obligations.................................           4
  Dedicated-Tax Supported Bonds.............................................           4
  Municipal Lease Bonds.....................................................           5
  Original Issue Discount Bonds and Stripped Obligations....................           5
WHY AND HOW ARE THE BONDS INSURED?..........................................           6
ACCUMULATION PLAN...........................................................           8
INFORMATION ABOUT THE SPONSOR...............................................          10
DESCRIPTION OF RATINGS......................................................          11
Appendix A -- Maryland Disclosure...........................................         A-1
Appendix B -- Colorado Disclosure...........................................         B-1
Appendix C -- Michigan Disclosure...........................................         C-1
</TABLE>
 
<PAGE>
GENERAL RISK DISCLOSURE
 
    An  investment in Units of any Trust should be made with an understanding of
the risks that such an investment may  entail. These include the ability of  the
issuer,  or,  if  applicable,  an  insurer, to  make  payments  of  interest and
principal when due, the  effects of changes in  interest rates generally,  early
call provisions and the potential for changes in the tax status of the Bonds. As
set  forth in the portfolio  summaries in Part A  of this Prospectus, the Trusts
may contain or be concentrated  in one or more of  the types of bonds  discussed
below.   The  following  paragraphs  discuss  certain  circumstances  which  may
adversely affect the  ability of issuers  of Bonds  held in the  portfolio of  a
Trust  to make payment of principal and  interest thereon or which may adversely
affect the  ratings of  such Bonds;  with respect  to Insured  Trusts,  however,
because of the insurance obtained by the Sponsor or by the issuers of the Bonds,
such changes should not adversely affect an Insured Trust's receipt of principal
and  interest, the Standard & Poor's AAA or  Moody's Aaa ratings of the Bonds in
the Insured Trust portfolio, or the Standard & Poor's AAA rating of the Units of
each such Insured Trust. For economic  risks specific to the individual  Trusts,
see "Risk Factors" for each Trust.
 
    HEALTH  FACILITY  OBLIGATIONS.    Some  of  the  Bonds  in  a  Trust  may be
obligations of  issuers whose  revenues are  derived from  services provided  by
hospitals  or other health care facilities,  including nursing homes. Ratings of
bonds issued  for health  care  facilities are  sometimes based  on  feasibility
studies  that contain projections of occupancy  levels, revenues and expenses. A
facility's gross  receipts and  net income  available for  debt service  may  be
affected  by future events and conditions  including, among other things, demand
for services, the ability of the  facility to provide the services required,  an
increasing  shortage of qualified nurses or a dramatic rise in nursing salaries,
physicians'  confidence  in  the  facility,  management  capabilities,  economic
developments  in  the service  area, competition  from other  similar providers,
efforts by  insurers  and  governmental agencies  to  limit  rates,  legislation
establishing  state rate-setting agencies,  expenses, government regulation, the
cost and possible unavailability of  malpractice insurance, and the  termination
or  restriction of governmental financial  assistance, including that associated
with Medicare, Medicaid and other  similar third party payor programs.  Medicare
reimbursements are currently calculated on a prospective basis and are not based
on  a provider's actual costs. Such method of reimbursement may adversely affect
reimbursements to hospitals and other facilities for services provided under the
Medicare program and thereby may have an  adverse effect on the ability of  such
institutions  to satisfy  debt service requirements.  In the event  of a default
upon a bond  secured by hospital  facilities, the limited  alternative uses  for
such  facilities may result  in the recovery upon  such collateral not providing
sufficient funds to fully repay the bonds.
 
    Certain hospital  bonds  provide for  redemption  at par  upon  the  damage,
destruction  or  condemnation of  the hospital  facilities  or in  other special
circumstances.
 
    HOUSING OBLIGATIONS.  Some  of the Bonds  in a Trust  may be obligations  of
issuers  whose revenues  are primarily  derived from  mortgage loans  to housing
projects for  low  to  moderate  income  families.  Such  issues  are  generally
characterized  by mandatory redemption at par or,  in the case of original issue
discount bonds, accreted  value in  the event of  economic defaults  and in  the
event of a failure of the operator of a project to comply with certain covenants
as  to the operation of the project. The failure of such operator to comply with
certain covenants related  to the tax-exempt  status of interest  on the  Bonds,
such  as provisions requiring that a specified  percentage of units be rented or
available for rental to low or moderate income families, potentially could cause
interest on such Bonds to be subject to Federal income taxation from the date of
issuance of the Bonds. The ability of such issuers to make debt service payments
will  be  affected  by  events  and  conditions  affecting  financed   projects,
including,  among other  things, the  achievement and  maintenance of sufficient
occupancy levels and  adequate rental income,  employment and income  conditions
prevailing  in local labor markets, increases  in taxes, utility costs and other
operating expenses, the managerial ability of project managers, changes in  laws
and  governmental regulations,  the appropriation  of subsidies,  and social and
economic trends  affecting the  localities in  which the  projects are  located.
Occupancy of such housing projects may be adversely affected by high rent levels
and income limitations imposed under Federal and state programs.
 
    SINGLE  FAMILY MORTGAGE REVENUE BONDS.  Some of  the Bonds in a Trust may be
single family  mortgage revenue  bonds,  which are  issued  for the  purpose  of
acquiring  from originating financial institutions notes secured by mortgages on
residences located within the issuer's boundaries and owned by persons of low or
moderate income. Mortgage  loans are generally  partially or completely  prepaid
prior  to their  final maturities  as a  result of  events such  as sale  of the
mortgaged premises, default, condemnation or casualty loss. Because these  bonds
are  subject to extraordinary mandatory redemption in whole or in part from such
prepayments of mortgage loans, a substantial portion of such bonds will probably
be redeemed prior to their scheduled maturities or even prior to their  ordinary
call dates. Extraordinary mandatory redemption without premium could also result
from  the failure  of the  originating financial  institutions to  make mortgage
loans  in   sufficient   amounts   within   a   specified   time   period.   The
 
                                       2
<PAGE>
redemption  price of such issues may be more  or less than the offering price of
such bonds.  Additionally, unusually  high rates  of default  on the  underlying
mortgage  loans may reduce revenues available for the payment of principal of or
interest on such mortgage  revenue bonds. Single  family mortgage revenue  bonds
issued  after December 31, 1980  were issued under Section  103A of the Internal
Revenue Code of 1954, as amended, or Section 143 of the Internal Revenue Code of
1986, which Sections  contain certain requirements  relating to the  use of  the
proceeds  of such bonds  in order for the  interest on such  bonds to retain its
tax-exempt status.  In each  case, the  issuer of  the bonds  has covenanted  to
comply  with applicable requirements and bond  counsel to such issuer has issued
an opinion that  the interest on  the bonds  is exempt from  Federal income  tax
under  existing  laws  and regulations.  There  can  be no  assurance  that such
continuing requirements will be satisfied; the failure to meet such requirements
could cause interest  on the  Bonds to be  subject to  Federal income  taxation,
possibly from the date of issuance of the Bonds.
 
    FEDERALLY  ENHANCED OBLIGATIONS.   Some  of the  mortgages which  secure the
various health care or housing projects which underlie the previously  discussed
Health  Facility, Housing, and  Single Family Mortgage  Revenue Obligations (the
"Obligations") in a Trust may be  insured by the Federal Housing  Administration
("FHA").  Under FHA  regulations, the  maximum insurable  mortgage amount cannot
exceed 90%  of  the FHA's  estimated  value of  the  project. The  FHA  mortgage
insurance  does not constitute a guarantee of timely payment of the principal of
and interest on the Obligations. Payment  of mortgage insurance benefits may  be
(1)  less than the principal amount of Obligations outstanding or (2) delayed if
disputes arise as to  the amount of  the payment or if  certain notices are  not
given  to the FHA within  the prescribed time periods.  In addition, some of the
previously discussed Obligations may be secured by mortgage-backed  certificates
guaranteed  by the Government  National Mortgage Association  ("GNMA"), a wholly
owned corporate  instrumentality  of  the  United  States,  and/or  the  Federal
National   Mortgage  Association  ("Fannie  Mae")   a  federally  chartered  and
stockholder-owed corporation. GNMA  and Fannie Mae  guarantee timely payment  of
principal  and  interest on  the  mortgage-backed certificates,  even  where the
underlying  mortgage  payments   are  not  made.   While  such   mortgage-backed
certificates  are often pledged  to secure payment of  principal and interest on
the Obligations, timely payment of interest and principal on the Obligations  is
not  insured or guaranteed by  the United States, GNMA,  Fannie Mae or any other
governmental agency or  instrumentality. The  GNMA mortgage-backed  certificates
constitute  a general obligation of  the United States backed  by its full faith
and credit. The obligations of Fannie  Mae, including its obligations under  the
Fannie  Mae mortgage-backed securities, are obligations solely of Fannie Mae and
are not backed  by, or  entitled to,  the full faith  and credit  of the  United
States.
 
    INDUSTRIAL  REVENUE OBLIGATIONS.   Certain  of the Bonds  in a  Trust may be
industrial revenue bonds  ("IRBs"), including pollution  control revenue  bonds,
which  are  tax-exempt  securities  issued  by  states,  municipalities,  public
authorities or similar entities to  finance the cost of acquiring,  constructing
or improving various industrial projects. These projects are usually operated by
corporate entities. Issuers are obligated only to pay amounts due on the IRBs to
the  extent that funds are available from the unexpended proceeds of the IRBs or
receipts or revenues of the issuer  under an arrangement between the issuer  and
the  corporate operator of  a project. The arrangement  may be in  the form of a
lease, installment sale agreement, conditional sale agreement or loan agreement,
but in each case  the payments to  the issuer are designed  to be sufficient  to
meet  the payments  of amounts  due on  the IRBs.  Regardless of  the structure,
payment of IRBs is solely dependent  upon the creditworthiness of the  corporate
operator  of  the project  and,  if applicable,  corporate  guarantor. Corporate
operators or  guarantors may  be affected  by  many factors  which may  have  an
adverse  impact on  the credit  quality of  the particular  company or industry.
These include cyclicality of revenues and earnings, regulatory and environmental
restrictions, litigation  resulting  from  accidents  or  environmentally-caused
illnesses,  extensive competition  and financial deterioration  resulting from a
corporate restructuring pursuant to a leveraged buy-out, takeover or  otherwise.
Such  a restructuring may  result in the  operator of a  project becoming highly
leveraged which may have an impact on such operator's creditworthiness which  in
turn  would have  an adverse impact  on the  rating and/or market  value of such
Bonds. Further, the  possibility of  such a  restructuring may  have an  adverse
impact  on the market for and consequently  the value of such Bonds, even though
no actual takeover or other action is ever contemplated or effected. The IRBs in
a Trust may be subject to  special or extraordinary redemption provisions  which
may  provide for redemption  at par or,  in the case  of original issue discount
bonds, accreted value. The  Sponsor cannot predict the  causes or likelihood  of
the redemption of IRBs in a Trust prior to the stated maturity of such Bonds.
 
    ELECTRIC  UTILITY  OBLIGATIONS.    Some  of the  Bonds  in  a  Trust  may be
obligations of issuers  whose revenues are  primarily derived from  the sale  of
electric  energy. The problems  faced by such issuers  include the difficulty in
obtaining approval for timely  and adequate rate  increases from the  applicable
public  utility  commissions,  the difficulty  of  financing  large construction
programs, increased competition,  reductions in estimates  of future demand  for
electricity  in certain areas of the  country, the limitations on operations and
increased costs and delays
 
                                       3
<PAGE>
attributable to  environmental considerations,  the  difficulty of  the  capital
market in absorbing utility debt, the difficulty in obtaining fuel at reasonable
prices  and the  effect of  energy conservation. All  of such  issuers have been
experiencing certain of these problems in varying degrees. In addition, Federal,
state and  municipal  governmental authorities  may  from time  to  time  review
existing,   and   impose  additional,   regulations  governing   the  licensing,
construction and operation of nuclear  power plants, which may adversely  affect
the  ability of the issuers of certain of  the Bonds in a Trust to make payments
of principal and/or interest on such Bonds.
 
    TRANSPORTATION FACILITY REVENUE BONDS.  Some of the Bonds in a Trust may  be
obligations  of issuers which  are payable from and  secured by revenues derived
from the ownership and operation of airports, public transit systems and  ports.
The  major portion of  an airport's gross operating  income is generally derived
from fees received  from airlines pursuant  to use agreements  which consist  of
annual  payments for airport  use, occupancy of  certain terminal space, service
fees and  leases. Airport  operating income  may therefore  be affected  by  the
ability  of the airlines to meet their obligations under the use agreements. The
air transport industry  is experiencing significant  variations in earnings  and
traffic,  due  to  increased  competition,  excess  capacity,  increased  costs,
deregulation, traffic constraints  and other factors,  and several airlines  are
experiencing  severe financial difficulties. In  particular, facilities with use
agreements involving airlines experiencing financial difficulty may experience a
reduction in revenue  due to the  possible inability of  these airlines to  meet
their  use  agreement obligations  because  of such  financial  difficulties and
possible bankruptcy.  The  Sponsor cannot  predict  what effect  these  industry
conditions  may have on airport revenues which  are dependent for payment on the
financial condition of the  airlines and their usage  of the particular  airport
facility.  Bonds that are secured primarily by the revenue collected by a public
transit system  typically are  additionally secured  by a  pledge of  sales  tax
receipts  collected  at  the state  or  local  level, or  of  other governmental
financial assistance. Transit system net revenues will be affected by variations
in  utilization,  which  in  turn  may  be  affected  by  the  degree  of  local
governmental  subsidization, demographic and  population shifts, and competition
from other  forms of  transportation; and  by increased  costs, including  costs
resulting  from previous deferrals of maintenance. Port authorities derive their
revenues primarily from fees imposed on ships using the facilities. The rate  of
utilization  of such facilities may fluctuate depending on the local economy and
on competition from  competing forms  of transportation  such as  air, rail  and
trucks.
 
    WATER  AND/OR SEWERAGE  OBLIGATIONS.  Some  of the  Bonds in a  Trust may be
obligations of issuers whose revenues are derived from the sale of water  and/or
sewerage services. Such Bonds are generally payable from user fees. The problems
of  such  issuers  include  the  ability  to  obtain  timely  and  adequate rate
increases, population decline resulting in  decreased user fees, the  difficulty
of  financing  large construction  programs, the  limitations on  operations and
increased costs  and delays  attributable to  environmental considerations,  the
increasing  difficulty of obtaining or discovering  new supplies of fresh water,
the effect  of  conservation  programs  and the  impact  of  "no-growth"  zoning
ordinances. All of such issuers have been experiencing certain of these problems
in varying degrees.
 
    UNIVERSITY  AND COLLEGE REVENUE OBLIGATIONS.   Some of the  Bonds in a Trust
may be  obligations of  issuers which  are, or  which govern  the operation  of,
colleges  and universities and  whose revenues are  derived mainly from tuition,
dormitory revenues,  grants and  endowments. General  problems of  such  issuers
include  the prospect of a declining  percentage of the population consisting of
"college" age  individuals,  possible  inability  to  raise  tuitions  and  fees
sufficiently  to cover increased  operating costs, the  uncertainty of continued
receipt of  Federal grants  and  state funding,  and government  legislation  or
regulations  which may adversely  affect the revenues or  costs of such issuers.
All of such issuers have been experiencing certain of these problems in  varying
degrees.
 
    BRIDGE AUTHORITY AND TOLLROAD OBLIGATIONS.  Some of the Bonds in a Trust may
be  obligations  of issuers  which derive  their payments  from bridge,  road or
tunnel toll revenues. The revenues of such an issuer could be adversely affected
by competition from toll-free vehicular bridges and roads and alternative  modes
of transportation. Such revenues could also be adversely affected by a reduction
in  the availability of fuel to motorists  or significant increases in the costs
thereof. Specifically, governmental regulations restricting the use of  vehicles
in  the New  York City  metropolitan area may  adversely affect  revenues of the
Triborough Bridge and Tunnel Authority.
 
    DEDICATED-TAX SUPPORTED  BONDS.    Some of  the  Bonds  in a  Trust  may  be
obligations of issuers which are payable from and secured by tax revenues from a
designated  source, which revenues are pledged  to secure the bonds. The various
types of  Bonds described  below differ  in structure  and with  respect to  the
rights of the bondholders to the underlying property. Each type of dedicated-tax
supported  Bond has distinct risks, only some  of which are set forth below. One
type of dedicated-tax supported Bond is secured by the incremental tax  received
on  either real property or on  sales within a specifically defined geographical
area; such  tax  generally will  not  provide bondholders  with  a lien  on  the
underlying property or revenues. Another type of dedicated-tax supported Bond is
secured  by a special tax levied on  real property within a defined geographical
area in such  a manner  that the tax  is levied  on those who  benefit from  the
project;   such  bonds   typically  provide   for  a   statutory  lien   on  the
 
                                       4
<PAGE>
underlying property for unpaid  taxes. A third  type of dedicated-tax  supported
Bond may be secured by a tax levied upon the manufacture, sale or consumption of
commodities  or upon the license to pursue certain occupations or upon corporate
privileges within a taxing jurisdiction. As to any of these types of Bonds,  the
ability  of  the  designated  revenues to  satisfy  the  interest  and principal
payments on such  bonds may be  affected by  changes in the  local economy,  the
financial  success of the  enterprise responsible for the  payment of the taxes,
the value of  any property on  which taxes may  be assessed and  the ability  to
collect  such  taxes in  a timely  fashion. Each  of these  factors will  have a
different affect on each distinct type of dedicated-tax supported bonds.
 
    MUNICIPAL LEASE BONDS.  Some of the Bonds in a Trust may be obligations that
are secured  by lease  payments  of a  governmental  entity. Such  payments  are
normally  subject to  annual budget  appropriations of  the leasing governmental
entity. A governmental  entity that enters  into such a  lease agreement  cannot
obligate  future  governments to  appropriate for  and  make lease  payments but
covenants to take such action as is necessary to include any lease payments  due
in  its budgets and to make the appropriations therefor. A governmental entity's
failure to appropriate for and to make payments under its lease obligation could
result in insufficient funds  available for payment  of the obligations  secured
thereby.
 
    ORIGINAL  ISSUE DISCOUNT  BONDS AND  STRIPPED OBLIGATIONS.   Certain  of the
Bonds in a Trust may be original  issue discount bonds. These Bonds were  issued
with  nominal  interest rates  less than  the rates  then offered  by comparable
securities and as a  consequence were originally sold  at a discount from  their
face,  or par, values. This original  issue discount, the difference between the
initial purchase price and face value, is deemed under current law to accrue  on
a  daily basis and the accrued portion  is treated as tax-exempt interest income
for federal income tax purposes. On  sale or redemption, gain, if any,  realized
in  excess of the earned  portion of original issue  discount will be taxable as
capital gain. See "What is the Tax Status of Unitholders". The current value  of
an original issue discount bond reflects the present value of its face amount at
maturity. In a stable interest rate environment, the market value of an original
issue  discount bond would  tend to increase  more slowly in  early years and in
greater increments as the bond approached maturity.
 
    Certain of the original issue discount bonds  in a Trust may be zero  coupon
bonds. Zero coupon bonds do not provide for the payment of any current interest;
the  buyer receives only the right to receive a final payment of the face amount
of the bond at its maturity. The effect  of owning a zero coupon bond is that  a
fixed  yield is earned not only on  the original investment but also, in effect,
on all  discount  earned  during  the life  of  the  obligation.  This  implicit
reinvestment of earnings at the same rate eliminates the risk of being unable to
reinvest  the income on such obligation at a rate as high as the implicit yield,
but at the same time also eliminates the holder's ability to reinvest at  higher
rates  in  the  future.  For  this reason,  zero  coupon  bonds  are  subject to
substantially greater  price  fluctuations  during periods  of  changing  market
interest  rates  than are  securities of  comparable  quality that  pay interest
currently.
 
    Original issue discount bonds, including  zero coupon bonds, may be  subject
to  redemption at prices  based on the  issue price plus  the amount of original
issue  discount  accreted  to  redemption   (the  "accreted  value")  plus,   if
applicable,  some premium.  Pursuant to such  call provisions  an original issue
discount bond may be called prior to its maturity date at a price less than  its
face  value. See the  "Schedules of Investments" for  more information about the
call provisions of portfolio Bonds.
 
    Certain of the Bonds in a Trust may be Stripped Obligations, which represent
evidences of  ownership with  respect to  either the  principal amount  of or  a
payment  of interest on a tax-exempt  obligation. An obligation is "stripped" by
depositing it with  a custodian, which  then effects a  separation in  ownership
between  the bond and any interest payment which has not yet become payable, and
issues evidences of ownership with respect to such constituent parts. A Stripped
Obligation therefore has economic characteristics similar to zero coupon  bonds,
as described above.
 
    Each  Stripped Obligation has  been purchased at a  discount from the amount
payable at maturity. With respect to each Unitholder, the Internal Revenue  Code
treats  as "original issue discount" that portion of the discount which produces
a yield to maturity (as of the date of purchase of the Unitholder's Units) equal
to the lower of the coupon rate of interest on the underlying obligation or  the
yield  to maturity on the basis of  the purchase price of the Unitholder's Units
which is allocable to  each Stripped Obligation.  Original issue discount  which
accrues with respect to a Stripped Obligation will be exempt from Federal income
taxation  to the  same extent  as interest  on the  underlying obligations. (See
"WHAT IS THE TAX STATUS OF UNITHOLDERS?" in Part B of this Prospectus.)
 
    Unitholders should consult their own tax advisers with respect to the  state
and  local tax consequences of owning  original issue discount bonds or Stripped
Obligations. Under applicable  provisions governing determination  of state  and
local  taxes, interest on original issue  discount bonds or Stripped Obligations
may be deemed  to be received  in the year  of accrual even  though there is  no
corresponding cash payment.
 
                                       5
<PAGE>
WHY AND HOW ARE THE BONDS INSURED?
 
INSURANCE ON BONDS
 
INSURED  TRUSTS--Insurance  guaranteeing the  timely payment,  when due,  of all
principal and interest on the Bonds in  each Insured Trust has been obtained  by
the  Sponsor or by the issuers or  underwriters of Bonds from the MBIA Insurance
Corporation (the "Insurer").  Some of  the Bonds in  each Insured  Trust may  be
covered  by  a  policy or  policies  of  insurance obtained  by  the  issuers or
underwriters of  the  Bonds  from  Municipal  Bond  Insurance  Association  (the
"Association") or Bond Investors Guaranty Insurance Company ("BIG"). The Insurer
has  issued a policy or policies of insurance  covering each of the Bonds in the
Insured Trusts, each policy to remain in force until the payment in full of such
Bonds and whether or not the Bonds continue  to be held by an Insured Trust.  By
the  terms  of each  policy the  Insurer will  unconditionally guarantee  to the
holders or owners of the Bonds the payment, when due, required of the issuer  of
the  Bonds of an amount equal  to the principal of and  interest on the Bonds as
such payments shall become due but not be paid (except that in the event of  any
acceleration  of the due  date of principal  by reason of  mandatory or optional
redemption, default or otherwise, the payments  guaranteed will be made in  such
amounts  and  at  such times  as  would have  been  due  had there  not  been an
acceleration). The  Insurer will  be  responsible for  such payments,  less  any
amounts  received by the holders or owners of the Bonds from any trustee for the
bond issuers or  from any other  sources other than  the Insurer. The  Insurer's
policies  relating to small  industrial development bonds  and pollution control
revenue bonds also guarantee the full and complete payments required to be  made
by  or on behalf  of an issuer  of Bonds pursuant  to the terms  of the Bonds if
there occurs an event which results in the loss of the tax-exempt status of  the
interest  on such Bonds,  including principal, interest  or premium payments, if
any, as and when thereby required. The Insurer has indicated that its  insurance
policies  do not insure the payment of  principal or interest on bonds which are
not required to be paid by the issuer thereof because the bonds were not validly
issued; as  indicated  under  "What  is the  Tax  Status  of  Unitholders?"  the
respective  issuing authorities have received  opinions of bond counsel relating
to the valid issuance of each of the Bonds in the Insured Trusts. The  Insurer's
policy  also does not insure against non-payment  of principal of or interest on
the Bonds resulting from the insolvency, negligence or any other act or omission
of the trustee or other paying agent for the Bonds. The policy is not covered by
the Property/Casualty Insurance Security Fund specified in Article 76 of the New
York Insurance Law. The policies are non-cancellable and the insurance  premiums
have  been fully paid on or prior to  the Date of Deposit, either by the Sponsor
or, if a policy has been obtained by a Bond issuer, by such issuer.
 
    Upon notification from  the trustee  for any bond  issuer or  any holder  or
owner of the Bonds or coupons that such trustee or paying agent has insufficient
funds  to pay any  principal or interest in  full when due,  the Insurer will be
obligated to deposit funds  promptly with State Street  Bank and Trust  Company,
N.A.,  New York, New York, as fiscal  agent for the Insurer, sufficient to fully
cover the deficit. If notice of nonpayment is received on or after the due date,
the Insurer will provide for payment  within one business day following  receipt
of  the notice. Upon payment  by the Insurer of  any Bonds, coupons, or interest
payments, the Insurer shall succeed  to the rights of  the owner of such  Bonds,
coupons or interest payments with respect thereto.
 
    The  Insurer is the principal operating subsidiary of MBIA, Inc., a New York
Stock Exchange listed company. MBIA, Inc. is  not obligated to pay the debts  of
or  claims against the  Insurer. The Insurer is  a limited liability corporation
rather than a  several liability association.  The Insurer is  domiciled in  the
State  of New York and licensed to do business in all 50 states, the District of
Columbia, the  Commonwealth of  Puerto Rico,  the Commonwealth  of the  Northern
Mariana  Islands, the Virgin Islands  of the United States  and the Territory of
Guam. The Insurer has one European branch in the Republic of France.
 
    As of  June  30,  1995 the  Insurer  had  admitted assets  of  $3.6  billion
(unaudited),  total liabilities of  $2.4 billion (unaudited),  and total capital
and surplus of $1.2 billion (unaudited) determined in accordance with  statutory
accounting   practices   prescribed   or  permitted   by   insurance  regulatory
authorities. As of December  31, 1994, the Insurer  had admitted assets of  $3.4
billion  (audited),  total  liabilities  of $2.3  billion  (audited),  and total
capital and  surplus of  $1.1 billion  (audited) determined  in accordance  with
statutory  accounting practices prescribed or  permitted by insurance regulatory
authorities. Copies of the Insurer's  year end financial statements prepared  in
accordance  with statutory accounting practices  are available from the Insurer.
The address of the Insurer is 113 King Street, Armonk, New York 10504.
 
    Each insurance company comprising the Association will be severally and  not
jointly  obligated  under the  Association  policy in  the  following respective
percentages:  The  AEtna  Casualty  and  Surety  Company,  33%;  Fireman's  Fund
Insurance  Company, 30%; The  Travelers Indemnity Company,  15%; AEtna Insurance
Company (now  known  as CIGNA  Property  and  Casualty Company),  12%;  and  The
Continental  Insurance Company, 10%.  As a several  obligor, each such insurance
company will be  obligated only to  the extent  of its percentage  of any  claim
under  the  Association policy  and  will not  be  obligated to  pay  any unpaid
obligation of any other member of the
 
                                       6
<PAGE>
Association. Each  insurance company's  participation is  backed by  all of  its
assets.  However,  each insurance  company is  a  multiline insurer  involved in
several lines of insurance other than  municipal bond insurance, and the  assets
of  each insurance  company also  secure all of  its other  insurance policy and
surety bond obligations.
 
    The following table sets forth certain unaudited financial information  with
respect  to  the  five  insurance  companies  comprising  the  Association.  The
statistics, which have been furnished by the Association, are as reported by the
insurance  companies  to  the  New  York  State  Insurance  Department  and  are
determined in accordance with statutory accounting principles. No representation
is  made herein as to the accuracy or  adequacy of such information or as to the
absence of material adverse changes in  such information subsequent to the  date
thereof.  In addition,  these numbers  are subject to  revision by  the New York
State Insurance Department which, if revised, could either increase or  decrease
the amounts.
 
                      MUNICIPAL BOND INSURANCE ASSOCIATION
      FIVE MEMBER COMPANIES ASSETS AND POLICYHOLDERS' SURPLUS (UNAUDITED)
                           AS OF SEPTEMBER 30, 1994.
                                (000'S OMITTED)
 
<TABLE>
<CAPTION>
                                                                                   NEW YORK         NEW YORK         NEW YORK
                                                                                   STATUTORY        STATUTORY     POLICYHOLDERS
                                                                                    ASSETS         LIABILITIES       SURPLUS
                                                                                ---------------  ---------------  --------------
<S>                                                                             <C>              <C>              <C>
The AEtna Casualty & Surety Company...........................................  $    10,030,200  $     8,275,300   $  1,754,900
Fireman's Fund Insurance Company..............................................        6,815,775        4,904,534      1,911,241
The Travelers Indemnity Company...............................................       10,295,359        8,515,392      1,779,967
CIGNA Property and Casualty Company (formerly AEtna Insurance Company)........        5,112,251        4,842,235        270,016
The Continental Insurance Company.............................................        2,794,536        2,449,805        344,731
                                                                                ---------------  ---------------  --------------
        Total.................................................................  $    35,048,121  $    28,987,266   $  6,060,855
                                                                                ---------------  ---------------  --------------
                                                                                ---------------  ---------------  --------------
</TABLE>
 
   Standard & Poor's Corporation rates all new issues insured by the Association
"AAA" Prime Grade.
 
   Moody's  Investors Service rates  all bond issues  insured by the Association
"Aaa" and  short term  loans  "MIG 1",  both designated  to  be of  the  highest
quality.
 
   Each  such rating should  be evaluated independently of  any other rating. No
application has  been  made  to any  other  rating  agency in  order  to  obtain
additional  ratings  on the  Bonds. The  ratings  reflect the  respective rating
agency's current assessment of the  creditworthiness of the Association and  its
ability  to pay claims on its policies  of insurance. Any further explanation as
to the  significance  of  the  above  ratings may  be  obtained  only  from  the
applicable rating agency.
 
   Moody's  Investors Service rates all bond issues insured by the Insurer "Aaa"
and short-term loans "MIG 1," both designated to be of the highest quality.
 
   Standard &  Poor's Ratings  Group, a  division of  McGraw Hill  ("Standard  &
Poor's") rates all new issues insured by the Insurer "AAA" Prime Grade."
 
   The  Moody's  Investors Service  rating of  the  Insurer should  be evaluated
independently of the  Standard & Poor's  Corporation rating of  the Insurer.  No
application  has  been  made to  any  other  rating agency  in  order  to obtain
additional ratings  on the  Bonds.  The ratings  reflect the  respective  rating
agency's  current  assessment of  the creditworthiness  of  the Insurer  and its
ability to  pay  claims  on  its policies  of  insurance  (See  "Description  of
Ratings.")  Any further explanation as to  the significance of the above ratings
may be obtained only from the applicable rating agency.
 
   The above ratings are not recommendations to buy, sell or hold the Bonds, and
such ratings may be subject to revision or withdrawal at any time by the  rating
agencies. Any downward revision or withdrawal of either or both ratings may have
an adverse effect on the market price of the Bonds.
 
   Because the insurance on the Bonds will be effective so long as the Bonds are
outstanding, such insurance will be taken into account in determining the market
value  of the Bonds and therefore some value attributable to such insurance will
be included in the value of the Units of the Insured Trusts. The insurance  does
not, however, guarantee the market value of the Bonds or of the Units.
 
TRADITIONAL  TRUSTS--Insurance guaranteeing the timely payment, when due, of all
principal and interest  on certain Bonds  in a Traditional  Trust may have  been
obtained  by the Sponsor, issuer or underwriter of the particular Bonds involved
or by another party. Such  insurance, which provides coverage substantially  the
same  as that  obtained with  respect to  Bonds in  Insured Trusts  as described
above, is effective so long as the insured Bond is
 
                                       7
<PAGE>
outstanding and the insurer remains in  business. Insurance relates only to  the
particular  Bond and not to  the Units offered hereby  or to their market value.
Insured Bonds have received a rating of "Aaa" by Moody's Investors Service, Inc.
and/or "AAA" by Standard & Poor's Corporation in recognition of such insurance.
 
    If a Bond in a Traditional Trust is insured, the Schedule of Investments  in
Part  A of  this Prospectus  will identify the  insurer. Such  insurance will be
provided by  Financial  Guaranty  Insurance Company  ("FGIC"),  AMBAC  Indemnity
Corporation  ("AMBAC"), Bond Investors Guaranty  Insurance Company, now known as
MBIA Corp. of  Illinois ("BIG"),  Capital Guaranty  Insurance Company  ("CGIC"),
Financial Security Assurance, Inc. ("FSA"), Municipal Bond Insurance Association
(the "Association"), MBIA Insurance Corporation ("MBIA") or Connie Lee Insurance
Company  ("ConnieLee"). The Sponsor to date  has purchased and presently intends
to purchase insurance for Bonds in Traditional Trusts exclusively from MBIA (see
the preceding disclosure  regarding MBIA). There  can be no  assurance that  any
insurer  listed therein  will be  able to satisfy  its commitments  in the event
claims are made in the future. However, Standard & Poor's Corporation has  rated
the  claims-paying ability of each insurer  "AAA," and Moody's Investors Service
has rated  all bonds  insured by  each such  insurer, except  ConnieLee,  "Aaa."
Moody's Investor's Service gives no ratings for bonds insured by ConnieLee.
 
    Because  any such insurance will  be effective so long  as the insured Bonds
are outstanding, such insurance  will be taken into  account in determining  the
market  value  of  such Bonds  and  therefore  some value  attributable  to such
insurance will be included in the value of the Units of the Trust that  includes
such  Bonds. The insurance does not, however,  guarantee the market value of the
Bonds or of the Units.
 
ACCUMULATION PLAN
 
The Sponsor, John Nuveen & Co.  Incorporated, is also the principal  underwriter
of  the  Nuveen Municipal  Bond Fund,  Inc. (the  "Bond Fund"),  Nuveen Tax-Free
Reserves, Inc. ("Tax-Free Reserves"), Nuveen California Tax-Free Fund, Inc. (the
"California Fund"),  Nuveen Tax-Free  Bond Fund,  Inc. ("Tax-Free  Bond  Fund"),
Nuveen  Insured Tax-Free  Bond Fund, Inc.  (the "Insured Bond  Fund") and Nuveen
Tax-Free Money  Market Fund,  Inc.  (the "Money  Market  Fund") and  the  Nuveen
Multistate  Tax-Free  Trust  (the  "Multistate  Trust").  Each  of  these  funds
(together, the  "Accumulation Funds")  is  an open-end,  diversified  management
investment   company  into  which  Unitholders  may  choose  to  reinvest  Trust
distributions automatically,  without any  sales  charge. (Reinvestment  in  the
California  Fund is available only to  Unitholders who are California residents.
Reinvestment in the State Portfolios of the Tax-Free Bond Fund, the Insured Bond
Fund, the  Money Market  Fund and  the  Multistate Trust  is available  only  to
Unitholders  who  are residents  of  the states  for  which such  portfolios are
named.) Unitholders may  reinvest both interest  and principal distributions  or
principal  distributions only. Each Accumulation  Fund has investment objectives
which differ in  certain respects from  those of  the Trusts and  may invest  in
securities which would not be eligible for deposit in the Trusts. The investment
adviser  to  each Accumulation  Fund is  Nuveen  Advisory Corp.,  a wholly-owned
subsidiary of  the  Sponsor. The  following  is  a general  description  of  the
investment  objectives  and  policies  of each  Accumulation  Fund.  For  a more
detailed description, Unitholders should read the prospectus of the Accumulation
Fund in which they are interested.
 
THE BOND FUND
 
    The Bond  Fund has  the  objective of  providing,  through investment  in  a
professionally  managed portfolio of long-term municipal  bonds, as high a level
of current interest income exempt from Federal income tax as is consistent  with
preservation  of capital. The Bond Fund  may include in its portfolio tax-exempt
bonds rated Baa or BBB or better by Moody's or Standard & Poor's, unrated  bonds
which,  in the  opinion of the  investment adviser,  have credit characteristics
equivalent  to  bonds  rated  Baa  or  BBB  or  better,  and  certain  temporary
investments,  including securities the interest income from which may be subject
to Federal income tax.
 
TAX-FREE RESERVES
 
    Tax-Free Reserves is a  "money market" fund that  includes in its  portfolio
only  obligations  maturing  within  one  year  from  the  date  of acquisition,
maintains an average maturity of all investments of 120 days or less, values its
portfolio at amortized cost and seeks to maintain a net asset value of $1.00 per
share. It provides checkwriting and expedited wire redemption privileges for its
shareholders.  Tax-Free  Reserves  has  the  objective  of  providing,   through
investment  in  a professionally  managed portfolio  of high  quality short-term
municipal obligations, as high  a level of current  interest income exempt  from
Federal  income  tax  as is  consistent  with  preservation of  capital  and the
maintenance of  liquidity.  Tax- Free  Reserves  may include  in  its  portfolio
municipal obligations rated Aaa, Aa, MIG-1, VMIG-1 or Prime-1 by Moody's or AAA,
AA, SP-1 or A-1 by Standard & Poor's, unrated municipal obligations that, in the
opinion  of the  investment adviser,  have credit  characteristics equivalent to
obligations  rated  as  above,  tax-exempt   obligations  backed  by  the   U.S.
Government, and temporary investments that may be subject to Federal income tax.
 
                                       8
<PAGE>
THE CALIFORNIA FUND
 
    The  California Fund has  the objective of  providing, through investment in
professionally managed portfolios of California municipal obligations, as high a
level of current interest income exempt from both Federal and California  income
taxes as is consistent with the investment policies of each of the portfolios of
the  California Fund  and with  preservation of  capital. Each  portfolio of the
California Fund may include  temporary investments that may  be subject to  tax.
California Unitholders may reinvest in one of three portfolios of the California
Fund:  The Nuveen California Tax-Free Value  Fund, the Nuveen California Insured
Tax-Free Value Fund and the Nuveen California Tax-Free Money Market Fund.
 
    The Nuveen California  Tax-Free Value  Fund invests  primarily in  long-term
investment  grade California  tax-exempt bonds  (I.E., bonds  rated in  the four
highest categories by  Moody's or Standard  & Poor's or,  if unrated, that  have
equivalent credit characteristics). The Nuveen California Insured Tax-Free Value
Fund  invests primarily  in the  same type  of investments  as the  Special Bond
Portfolio, each of which is covered by insurance guaranteeing the timely payment
of principal  and  interest  or  is  backed by  a  deposit  of  U.S.  Government
securities.
 
    The  Nuveen  California  Tax-Free  Money Market  Fund  invests  primarily in
high-quality short term California tax-  exempt money market instruments  (I.E.,
obligations  rated in the two highest categories by Moody's or Standard & Poor's
or, if unrated,  that have  equivalent credit  characteristics). This  portfolio
will  include  only  obligations  maturing  within one  year  from  the  date of
acquisition, will maintain an average maturity of all investments of 120 days or
less, will value its portfolio at amortized cost and will seek to maintain a net
asset value of $1.00 per share. The Nuveen California Tax-Free Money Market Fund
provides for an expedited wire redemption privilege.
 
THE TAX-FREE BOND FUND
 
    The Tax-Free Bond Fund consists  of the Nuveen Massachusetts Tax-Free  Value
Fund,  the Nuveen New York  Tax-Free Value Fund, the  Nuveen Ohio Tax-Free Value
Fund, and the Nuveen  New Jersey Tax-Free Value  Fund, which are each  available
for  reinvestment to Unitholders who  are residents of the  state for which such
portfolio is  named. The  Tax-Free Bond  Fund has  the objective  of  providing,
through  investment in a professionally managed portfolio of municipal bonds, as
high a level of current interest income exempt both from Federal income tax  and
from  the  income  tax  imposed  by  each  portfolio's  designated  state  as is
consistent with preservation of capital. The  Tax-Free Bond Fund may include  in
each  of its  portfolios tax-exempt  bonds rated Baa  or BBB  or better; unrated
bonds  which,  in   the  opinion   of  the  investment   adviser,  have   credit
characteristics  equivalent to  bonds rated  Baa or  BBB or  better; and certain
temporary investments, including securities the  interest income from which  may
be subject to Federal and state income tax.
 
THE INSURED BOND FUND
 
    The  Insured Bond Fund  consists of the Nuveen  Insured Municipal Bond Fund,
the Nuveen Massachusetts  Insured Tax-Free Value  Fund and the  Nuveen New  York
Insured  Tax-Free  Value  Fund, which  are  each available  for  reinvestment to
Unitholders. (The Massachusetts and  New York Portfolios  are available only  to
those  Unitholders who  are residents  of the state  for which  the portfolio is
named.) The Insured Bond Fund has the objective of providing, through investment
in professionally managed  portfolios of  municipal bonds,  as high  a level  of
current  interest income exempt from both Federal income tax and, in the case of
designated state portfolios,  from the  income tax imposed  by each  portfolio's
designated  state, as  is consistent with  preservation of  capital. The Insured
Bond Fund may include in each of its portfolios the same type of investments  as
the  Tax-Free Bond Fund, each of which  is covered by insurance guaranteeing the
timely payment of  principal and  interest or  is backed  by a  deposit of  U.S.
Government securities.
 
THE MONEY MARKET FUND
 
    The  Money Market Fund  consists of the  Nuveen Massachusetts Tax-Free Money
Market Fund and the Nuveen New York  Tax-Free Money Market Fund, which are  each
available  for reinvestment  to Unitholders who  are residents of  the state for
which such portfolio is named. The Money Market Fund includes in its  portfolios
only  obligations  maturing  within  one  year  from  the  date  of acquisition,
maintains an average  maturity of  120 days or  less, values  its portfolios  at
amortized  cost and seeks to maintain a net  asset value of $1.00 per share. The
Money Market  Fund  has  the  objective  of  providing,  through  investment  in
professionally   managed  portfolios   of  high   quality  short-term  municipal
obligations, as high a level of current interest income exempt both from Federal
income tax and from the income tax imposed by each portfolio's designated  state
as  is consistent with stability of  principal and the maintenance of liquidity.
The  Money  Market  Fund  may  include  in  each  of  its  portfolios  municipal
obligations  rated Aaa, Aa, MIG-1, MIG- 2, VMIG-1, VMIG-2, Prime 1 or Prime 2 by
Moody's or  AAA, AA,  SP-1,  SP-2, A-1  or A-2  by  Standard &  Poor's;  unrated
municipal   obligations  that,  in  the   opinion  of  the  investment  adviser,
 
                                       9
<PAGE>
have credit  characteristics  equivalent  to obligations  rated  as  above;  and
temporary investments that may be subject to Federal and state income tax.
 
THE MULTISTATE TRUST
 
    The Multistate Trust consists of the Nuveen Arizona Tax-Free Value Fund, the
Nuveen Florida Tax-Free Value Fund, the Nuveen Maryland Tax-Free Value Fund, the
Nuveen  Michigan Tax-Free Value Fund, the Nuveen New Jersey Tax-Free Value Fund,
the Nuveen Pennsylvania  Tax-Free Value Fund  and the Nuveen  Virginia Tax  Free
Value  Fund, which  are each available  for reinvestment to  Unitholders who are
residents of the state for which  such portfolio is named. The Multistate  Trust
has  the objective of providing, through  investment in a professionally managed
portfolio of municipal bonds, as high a level of current interest income  exempt
from  both regular Federal  income tax and the  applicable state personal income
tax as is  consistent with  preservation of  capital. The  Multistate Trust  may
include  in each  of its  portfolios tax-exempt  bonds rated  "Baa" or  "BBB" or
better, unrated bonds  which, in  the opinion  of the  investment advisor,  have
credit  characteristics  equivalent to  bonds rated  "baa"  or "BBB"  or better,
limited to  no more  than 20%  of  the Multistate  Trust's assets,  and  certain
temporary investments that may be subject to Federal and state income tax.
 
    Each  person who purchases Units of a  Trust may become a participant in the
Accumulation Plan and elect  to have his  or her distributions  on Units of  the
Trust  invested directly in shares of one of the Accumulation Funds. Reinvesting
Unitholders  may  select  any  interest  distribution  plan.  Thereafter,   each
distribution  of  interest  income  or  principal  on  the  participant's  Units
(principal only in  the case of  a Unitholder  who has chosen  to reinvest  only
principal  distributions) will, on the applicable distribution date, or the next
day on which the New  York Stock Exchange is  normally open ("business day")  if
the  distribution  date is  not  a business  day,  automatically be  received by
Shareholder Services, Inc., transfer agent  for each of the Accumulation  Funds,
on  behalf of such participant  and applied on that  date to purchase shares (or
fractions thereof)  of  the Accumulation  Fund  chosen  at net  asset  value  as
computed  as of 4:00 p.m. eastern time on each such date. All distributions will
be reinvested  in the  Accumulation Fund  chosen  and no  part thereof  will  be
retained  in a separate  account. These purchases  will be made  without a sales
charge.
 
INFORMATION ABOUT THE SPONSOR
 
John Nuveen & Co. Incorporated, the Sponsor and Underwriter, was founded in 1898
and is  the oldest  and  largest investment  banking  firm specializing  in  the
underwriting and distribution of tax-exempt securities and maintains the largest
research  department in the investment  banking community devoted exclusively to
the analysis of municipal securities. In  1961 the Sponsor began sponsoring  the
Nuveen  Tax-Exempt Unit Trust and, since this  time, it has issued more than $30
billion in tax-exempt unit trusts, including over $8 billion in insured  trusts.
The  Sponsor is  also principal underwriter  of the Nuveen  Municipal Bond Fund,
Inc., the Nuveen Tax-Exempt Money  Market Fund, Inc., Nuveen Tax-Free  Reserves,
Inc.,  Nuveen California Tax-Free  Fund, Inc., Nuveen  Tax-Free Bond Fund, Inc.,
Nuveen Insured Tax-Free Bond Fund, Inc.  and Nuveen Tax-Free Money Market  Fund,
Inc.,  all  registered open-end  management investment  companies, and  acted as
co-managing underwriter of Nuveen Municipal Value Fund, Inc., Nuveen  California
Municipal  Value Fund, Inc., Nuveen New  York Municipal Value Fund, Inc., Nuveen
Municipal Income  Fund, Inc.,  Nuveen California  Municipal Income  Fund,  Inc.,
Nuveen  New York  Municipal Income Fund,  Inc., Nuveen  Premium Income Municipal
Fund, Inc.,  Nuveen Performance  Plus Municipal  Fund, Inc.,  Nuveen  California
Performance  Plus  Municipal  Fund,  Inc.,  Nuveen  New  York  Performance  Plus
Municipal Fund, Inc.,  Nuveen Municipal Advantage  Fund, Inc., Nuveen  Municipal
Market  Opportunity Fund,  Inc., Nuveen California  Municipal Market Opportunity
Fund, Inc.,  Nuveen New  York Municipal  Market Opportunity  Fund, Inc.,  Nuveen
Investment  Quality Municipal  Fund, Inc., Nuveen  California Investment Quality
Municipal Fund, Inc., Nuveen New  York Investment Quality Municipal Fund,  Inc.,
Nuveen  Insured Quality Municipal Fund,  Inc., Nuveen Florida Investment Quality
Municipal Fund, Nuveen  Pennsylvania Investment Quality  Municipal Fund,  Nuveen
New  Jersey  Investment  Quality Municipal  Fund,  Inc., and  the  Nuveen Select
Quality Municipal Fund,  Inc., Nuveen California  Quality Municipal Fund,  Inc.,
Nuveen  New  York Select  Quality Municipal  Fund,  Inc., Nuveen  Quality Income
Municipal Fund, Inc.,  Nuveen Insured Municipal  Opportunity Fund, Inc.,  Nuveen
Florida  Quality Income Municipal Fund, Nuveen Michigan Quality Income Municipal
Fund, Inc., Nuveen New Jersey Quality  Income Municipal Fund, Inc., Nuveen  Ohio
Quality   Income  Municipal  Fund,  Inc.,  Nuveen  Pennsylvania  Quality  Income
Municipal Fund, Nuveen  Texas Quality Income  Municipal Fund, Nuveen  California
Quality  Income Municipal Fund,  Inc., Nuveen New  York Quality Income Municipal
Fund, Inc., Nuveen Premier  Insured Municipal Income  Fund, Inc., Nuveen  Select
Tax  Free Income  Portfolio, Nuveen Select  Tax Free Income  Portfolio 2, Nuveen
Insured California Select  Tax-Free Income  Portfolio, Nuveen  Insured New  York
Select  Tax-Free Income Portfolio, Nuveen Premium Income Municipal Fund 2, Inc.,
Nuveen Select Tax Free  Income Portfolio 3,  Nuveen Select Maturities  Municipal
Fund,  Nuveen  Insured California  Premium Income  Municipal Fund,  Inc., Nuveen
Arizona Premium  Income  Municipal Fund,  Inc.,  Nuveen Insured  Premium  Income
Municipal Fund, Inc., Nuveen Insured Florida Premium Income
 
                                       10
<PAGE>
Municipal  Fund, Nuveen Michigan Premium Income Municipal Fund, Inc., Nuveen New
Jersey Premium  Income Municipal  Fund, Inc.,  Nuveen Insured  New York  Premium
Income  Municipal Fund, Inc.,  Nuveen Ohio Premium  Income Municipal Fund, Inc.,
Nuveen Pennsylvania Premium Income Municipal  Fund, Nuveen Texas Premium  Income
Municipal   Fund,  Nuveen  Premium   Income  Municipal  Fund   4,  Inc.,  Nuveen
Pennsylvania Premium Income  Municipal Fund  2, Nuveen  Insured Florida  Premium
Income  Municipal Fund 2, Nuveen Maryland  Premium Income Municipal Fund, Nuveen
Virginia Premium  Income Municipal  Fund,  Nuveen Massachusetts  Premium  Income
Municipal Fund, Nuveen Insured California Premium Income Municipal Fund 2, Inc.,
Nuveen  Insured  New York  Premium Income  Municipal Fund  2, Nuveen  New Jersey
Premium Income  Municipal Fund  2, Nuveen  Washington Premium  Income  Municipal
Fund,  Nuveen Michigan Premium  Income Municipal Fund  2, Nuveen Georgia Premium
Income Municipal Fund,  Nuveen Missouri  Premium Income  Municipal Fund,  Nuveen
Connecticut  Premium Income Municipal Fund, Nuveen North Carolina Premium Income
Municipal Fund,  Nuveen  New Jersey  Premium  Income Municipal  Fund  3,  Nuveen
Florida  Premium Income Municipal Fund, Nuveen New York Premium Income Municipal
Fund, Nuveen  California  Premium  Income Municipal  Fund,  Nuveen  Pennsylvania
Premium Income Municipal Fund 3, Nuveen Maryland Income Municipal Fund 2, Nuveen
Virginia  Premium Income Municipal Fund 2,  Nuveen Ohio Premium Income Municipal
Fund 2,  Nuveen  Insured Premium  Income  Municipal Fund  2,  Nuveen  California
Premium Income Municipal Fund 2, all registered closed-end management investment
companies.   These  registered  open-end  and  closed-end  investment  companies
currently have  approximately  $32.8  billion  in  tax-exempt  securities  under
management.  Nationwide, more than 1,000,000 individual investors have purchased
Nuveen's tax exempt trusts and funds.  The present corporation was organized  in
1967  as  a  wholly-owned subsidiary  of  Nuveen Corporation,  successor  to the
original John  Nuveen  &  Co. founded  in  1898  as a  sole  proprietorship  and
incorporated  in  1953.  In  1974,  John  Nuveen  &  Co.  Incorporated  became a
wholly-owned subsidiary of The  St. Paul Companies,  Inc., a financial  services
management  company  located in  St. Paul,  Minnesota. On  May 19,  1992, common
shares comprising a  minority interest  in The  John Nuveen  Company ("JNC"),  a
newly  organized corporation which holds all of  the shares of Nuveen, were sold
to the  general  public  in an  initial  public  offering. St.  Paul  retains  a
controlling  interest in  JNC with over  70% of  JNC's shares. The  Sponsor is a
member  of  the  National  Association  of  Securities  Dealers,  Inc.  and  the
Securities Industry Association and has its principal offices located in Chicago
(333  W. Wacker Drive) and New York (Swiss  Bank Tower, 10 East 50th Street). It
maintains 14 regional offices.
 
    To help advisers and investors better understand and more efficiently use an
investment in the Trust  to reach their investment  goals, the Trust's  sponsor,
John  Nuveen &  Co. Incorporated, may  advertise and  create specific investment
programs and  systems.  For  example, such  activities  may  include  presenting
information  on how to use  an investment in the  Trust, alone or in combination
with an investment in other mutual funds or unit investment trusts sponsored  by
Nuveen,  to accumulate  assets for future  education needs  or periodic payments
such as  insurance  premiums.  The  Trust's  sponsor  may  produce  software  or
additional sales literature to promote the advantages of using the Trust to meet
these and other specific investor needs.
 
DESCRIPTION OF RATINGS*
 
    STANDARD  & POOR'S CORPORATION.  A  description of the applicable Standard &
Poor's Corporation rating symbols and their meanings follows:
 
    A Standard & Poor's rating is  a current assessment of the  creditworthiness
of  an obligor with respect  to a specific debt  obligation. This assessment may
take into consideration obligors such as guarantors, insurers or lessees.
 
    The rating is  not a recommendation  to purchase, sell  or hold a  security,
inasmuch  as  it  does not  comment  as to  market  price or  suitability  for a
particular investor.
 
    The ratings are  based on  current information  furnished by  the issuer  or
obtained by Standard & Poor's from other sources it considers reliable. Standard
&  Poor's does not  perform an audit in  connection with any  rating and may, on
occasion, rely on unaudited financial  information. The ratings may be  changed,
suspended  or withdrawn as  a result of  changes in, or  unavailability of, such
information, or for other circumstances.
 
    The ratings are based, in varying degrees, on the following considerations:
 
     I.  Likelihood of default--capacity  and willingness of  the obligor as  to
         the timely payment of interest and repayment of principal in accordance
         with the terms of the obligation;
 
     II.  Nature of and provisions of the obligation;
 
- ----------
*As published by the rating companies.
 
                                       11
<PAGE>
    III.  Protection  afforded by, and  relative position of,  the obligation in
          the event of  bankruptcy, reorganization or  other arrangements  under
          the laws of bankruptcy and other laws affecting creditors' rights.
 
    AAA--This  is the  highest rating  assigned by Standard  & Poor's  to a debt
obligation. Capacity to pay interest and repay principal is extremely strong.
 
    AA--Bonds rated AA  have a very  strong capacity to  pay interest and  repay
principal, and differ from the highest rated issues only in small degree.
 
    A--Bonds rated A have a strong capacity to pay interest and repay principal,
although they are somewhat more susceptible to the adverse effects of changes in
circumstances and economic conditions than bonds in higher rated categories.
 
    BBB--Bonds  rated BBB  are regarded  as having  an adequate  capacity to pay
interest and repay principal. Whereas they normally exhibit adequate  protection
parameters,  adverse  economic  conditions or  changing  circumstances  are more
likely to lead to a  weakened capacity to pay  interest and repay principal  for
bonds in this category than for bonds in the higher rated categories.
 
    PLUS  (+) OR MINUS (-): The ratings from "AA" to "BB" may be modified by the
addition of a  plus or minus  sign to  show relative standing  within the  major
rating categories.
 
    PROVISIONAL   RATINGS:  The  letter   "p"  indicates  that   the  rating  is
provisional. A  provisional  rating assumes  the  successful completion  of  the
project  being financed by the  issuance of the bonds  being rated and indicates
that payment of debt service requirements is largely or entirely dependent  upon
the successful and timely completion of the project. This rating, however, while
addressing  credit quality  subsequent to  completion of  the project,  makes no
comment on the  likelihood of,  or the  risk of  default upon  failure of,  such
completion.  Accordingly,  the investor  should exercise  his own  judgment with
respect to such likelihood and risk.
 
    NOTE RATINGS:  A  Standard  &  Poor's note  rating  reflects  the  liquidity
concerns  and market access risks unique to notes.  Notes due in 3 years or less
will likely  receive a  note rating.  Notes maturing  beyond 3  years will  most
likely receive a long-term debt rating.
 
    Note rating symbols are as follows:
 
        SP-1  Very  strong  or strong  capacity to  pay principal  and interest.
              Those   issues   determined   to   possess   overwhelming   safety
              characteristics will be given a plus (+) designation.
 
        SP-2  Satisfactory capacity to pay principal and interest.
 
RATINGS OF INSURED TRUST UNITS.
 
    A  Standard &  Poor's rating  on the  units of  an insured  investment trust
(hereinafter referred  to collectively  as "units"  and "trusts")  is a  current
assessment  of  creditworthiness with  respect to  the  investment held  by such
trust. This assessment takes  into consideration the  financial capacity of  the
issuers  and of any guarantors, insurers,  lessees or mortgagors with respect to
such investments. The assessment, however, does not take into account the extent
to which  trust  expenses or  portfolio  asset sales  for  less than  the  trust
purchase  price  will  reduce payment  to  the  unitholder of  the  interest and
principal required to be paid on  the portfolio assets. In addition, the  rating
is  not a recommendation to purchase, sell or hold units, inasmuch as the rating
does not comment as to market price of the units or suitability for a particular
investor.
 
    Units rated "AAA" are composed exclusively of assets that are rated "AAA" by
Standard &  Poor's  and/or certain  short-term  investments. Standard  &  Poor's
defines  its  AAA rating  for  such assets  as  the highest  rating  assigned by
Standard &  Poor's to  a debt  obligation. Capacity  to pay  interest and  repay
principal  is very strong. However,  unit ratings may be  subject to revision or
withdrawal at any time by Standard & Poor's and each rating should be  evaluated
independently of any other rating.
 
    MOODY'S  INVESTORS  SERVICE, INC.   A  brief  description of  the applicable
Moody's Investors Service, Inc. rating symbols and their meanings follows:
 
    Aaa--Bonds which are rated Aaa are judged to be the best quality. They carry
the smallest degree of  investment risk and are  generally referred to as  "gilt
edge."  Interest payments are protected by a large or by an exceptionally stable
margin and principal is secure. While the various protective elements are likely
to change, such changes  as can be  visualized are most  unlikely to impair  the
fundamentally  strong position of such issues. Their safety is so absolute that,
with the  occasional  exception  of  oversupply in  a  few  specific  instances,
characteristically,  their  market  value  is affected  solely  by  money market
fluctuations.
 
    Aa--Bonds which  are rated  Aa  are judged  to be  of  high quality  by  all
standards. Together with the Aaa group they comprise what are generally known as
high  grade bonds. They are  rated lower than the  best bonds because margins of
protection may  not  be  as  large  as in  Aaa  securities  or  fluctuations  of
protective elements may be of
 
                                       12
<PAGE>
greater  amplitude  or  there  may  be other  elements  present  which  make the
long-term risks  appear somewhat  larger than  in Aaa  securities. Their  market
value  is  virtually  immune  to  all  but  money  market  influences,  with the
occasional exception of oversupply in a few specific instances.
 
    A--Bonds which are rated A possess many favorable investment attributes  and
are  to be considered as upper medium grade obligations. Factors giving security
to principal and interest are considered  adequate, but elements may be  present
which  suggest a susceptibility to impairment sometime in the future. The market
value of A-rated bonds may be influenced to some degree by economic  performance
during  a sustained period of depressed business conditions, but, during periods
of normalcy,  A-rated  bonds  frequently  move  in  parallel  with  Aaa  and  Aa
obligations,  with  the occasional  exception of  oversupply  in a  few specific
instances.
 
    Moody's bond rating  symbols may  contain numerical modifiers  of a  generic
rating  classification. The modifier 1 indicates that the bond ranks at the high
end of  its category;  the modifier  2 indicates  a mid-range  ranking; and  the
modifier 3 indicates that the issue ranks in the lower end of its generic rating
category.
 
    Baa--Bonds  which are rated Baa are  considered as medium grade obligations,
i.e., they are neither  highly protected nor  poorly secured. Interest  payments
and  principal security appear  adequate for the  present but certain protective
elements may be lacking or may  be characteristically unreliable over any  great
length  of time. Such  bonds lack outstanding  investment characteristics and in
fact have speculative  characteristics as  well. The market  value of  Baa-rated
bonds  is more  sensitive to changes  in economic circumstances,  and aside from
occasional speculative factors applying to some bonds of this class, Baa  market
valuations  move in parallel  with Aaa, Aa  and A obligations  during periods of
economic normalcy, except in instances of oversupply.
 
    Con. (--)--Bonds for which the security depends upon the completion of  some
act  or the  fulfillment of  some condition  are rated  conditionally. These are
bonds secured by (a)  earnings of projects under  construction, (b) earnings  of
projects  unseasoned  in  operation  experience, (c)  rentals  which  begin when
facilities are completed, or (d) payments to which some other limiting condition
attaches. Parenthetical rating denotes  probable credit stature upon  completion
of construction or elimination of basis of condition.
 
    NOTE RATINGS:
 
    MIG 1--  This  designation denotes  best  quality. There  is  present strong
           protection by established cash  flows, superior liquidity support  or
           demonstrated broad-based access to the market for refinancing.
 
    MIG 2--  This designation  denotes high  quality. Margins  of protection are
           ample although not so large as in the preceding group.
 
                                       13
<PAGE>
                                   APPENDIX A
                              MARYLAND DISCLOSURE
 
ECONOMIC FACTORS--MARYLAND
 
    Some of the significant financial considerations relating to the investments
of  the Maryland  Traditional Trust  are summarized  below. This  information is
derived principally from official statements and preliminary official statements
released on or before May 13,  1992, relating to issues of Maryland  obligations
and does not purport to be a complete description.
 
    The  State's total expenditures  for the fiscal years  ending June 30, 1990,
June 30,  1991 and  June 30,  1992 were  $11.019, $11.304  and $11.657  billion,
respectively.  As of January 13, 1993,  it was estimated that total expenditures
for fiscal 1993 would be $11.897 billion. The State's General Fund, representing
approximately 55%-60% of each year's total budget, had a surplus on a  budgetary
basis  of $57 million in fiscal year 1990, $55 thousand in fiscal year 1991, and
a deficit of $56 million in fiscal 1992. The Governor of Maryland reduced fiscal
1993 appropriations by $56 million to offset the fiscal 1992 deficit. The  State
Constitution mandates a balanced budget.
 
    The  1993 fiscal year budget was enacted  in April 1992 which, together with
legislation enacted in 1992,  involved the transfer of  certain funds, new  fees
and  taxes, and alteration of certain statutory State expenditure programs. When
the 1993 budget was enacted, it was  estimated that the General Fund surplus  at
June  30, 1993 would be  approximately $10 million on  a budgetary basis. During
the final months of fiscal year 1992 and the initial months of fiscal year 1993,
collections of State revenues were below the levels estimated at the time of the
adoption of the 1993  budget. The Governor proposed  a cost containment plan  to
address  this revenue  shortfall and  to provide  reserves to  finance potential
deficiency appropriations.  On September  30, 1992,  the Board  of Public  Works
approved  the Governor's proposal to reduce  General Fund appropriations by $168
million. The Board  of Public  Works also  approved the  Governor's proposal  to
reduce  the special fund appropriations for  the Department of Transportation by
$30 million.  Legislation was  introduced at  the 1993  session of  the  General
Assembly  to  transfer this  $30 million  to the  General Fund,  as well  as $10
million from various other special funds. In a special session held in November,
1992, the  General Assembly  enacted  legislation reducing  State aid  to  local
governments  by  $147 million.  In addition,  other  elements of  the governor's
original cost  containment plan  are  in the  process  of being  implemented  or
revised.
 
    The  public indebtedness  of Maryland  and its  instrumentalities is divided
into three  basic types.  The  State issues  general  obligation bonds,  to  the
payment  of which the State ad valorem  property tax is exclusively pledged, for
capital improvements and for various State-sponsored projects. The Department of
Transportation  of  Maryland  issues  limited,  special  obligation  bonds   for
transportation purposes payable primarily from specific, fixed-rate excise taxes
and  other revenues  related mainly  to highway  use. Certain  authorities issue
obligations payable solely  from specific non-tax  enterprise fund revenues  and
for  which  the  State  has  no liability  and  has  given  no  moral obligation
assurance.
 
    According to the most recent available ratings, general obligation bonds  of
the  State of Maryland are rated "Aaa" by Moody's and "AAA" by Standard & Poor's
Corporation, as  are those  of  Baltimore County,  a separate  political  entity
surrounding  Baltimore  City.  General obligation  bonds  of  Montgomery County,
located in the suburbs of Washington, D.C., are rated "Aaa" by Moody's and "AAA"
by Standard & Poor's  Corporation. General obligation  bonds of Prince  George's
County,  the second largest metropolitan county, which is also in the suburbs of
Washington, D.C.,  are rated  "A1" by  Moody's and  "AA-" by  Standard &  Poor's
Corporation.  The general obligation bonds of  those other counties of the State
that are rated  by Moody's carry  an "A" rating  or better except  for those  of
Allegany  County,  which  are rated  "Baa".  The most  populous  municipality in
Maryland is Baltimore City, the general obligaton bonds of which are rated  "A1"
by  Moody's and "A" by  Standard & Poor's Corporation.  The majority of Maryland
Health and Higher  Education Authority  and State  Department of  Transportation
revenue bond issues have received an "A" rating or better from Moody's.
 
    While  the ratings and other factors  mentioned above indicate that Maryland
and its principal subdivisions  and agencies are addressing  the effects of  the
economic recession and, overall, are in satisfactory economic health, there can,
of  course, be  no assurance  that this  will continue  or that  particular bond
issues may not be adversely  affected by changes in  state or local economic  or
political conditions.
 
MARYLAND TAXABLE ESTIMATED CURRENT RETURN TABLE
 
    The  following tables show the approximate taxable estimated current returns
for individuals  that are  equivalent to  tax-exempt estimated  current  returns
under  combined Federal,  state and local  taxes, using  published 1995 marginal
Federal tax rates and marginal state and local tax rates currently available and
scheduled to  be in  effect*. The  tables incorporate  increased tax  rates  for
higher-income taxpayers that were included in the Revenue
 
                                      A-1
<PAGE>
Reconciliation  Act of 1993. Except as indicated  below, for cases in which more
than one state bracket falls within a Federal bracket, the highest state bracket
is combined with the Federal bracket. The combined state, local and Federal  tax
brackets shown reflect the fact that state tax payments are currently deductible
for  Federal tax purposes. The tables illustrate  what you would have to earn on
taxable investments to equal  the tax-exempt estimated  current return for  your
income  tax bracket.  A taxpayer's  marginal tax  rate is  affected by  both his
taxable income and  his adjusted gross  income. Locate your  adjusted gross  and
your  taxable  income  (which  is  your adjusted  gross  income  reduced  by any
deductions and  exemptions), then  locate your  tax bracket  based on  joint  or
single  tax  filing. Read  across to  the  equivalent taxable  estimated current
return you would need to match the tax-free income.
 
 COMBINED MARGINAL TAX RATES FOR JOINT TAXPAYERS WITH FOUR PERSONAL EXEMPTIONS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                  FEDERAL      COMBINED
    FEDERAL      ADJUSTED       STATE*,
    TAXABLE        GROSS       LOCAL AND                   TAX-EXEMPT ESTIMATED CURRENT RETURN
    INCOME        INCOME        FEDERAL       --------------------------------------------------------------
   (1,000'S)     (1,000'S)     TAX RATE1      4.50%   4.75%   5.00%   5.25%   5.50%   5.75%   6.00%   6.25%
 ------------- -------------  -----------     ------  ------  ------  ------  ------  ------  ------  ------
 <S>           <C>            <C>             <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
 $     0- 39.0 $     0-114.7      21.5   %     5.73    6.05    6.37    6.69    7.01    7.32    7.64    7.96
    39.0- 94.3       0-114.7      33.5         6.77    7.14    7.52    7.89    8.27    8.65    9.02    9.40
                 114.7-172.1      34.0         6.82    7.20    7.58    7.95    8.33    8.71    9.09    9.47
    94.3-143.6       0-114.7      36.0         7.03    7.42    7.81    8.20    8.59    8.98    9.38    9.77
                 114.7-172.1      37.0         7.14    7.54    7.94    8.33    8.73    9.13    9.52    9.92
                 172.1-294.6      39.5         7.44    7.85    8.26    8.68    9.09    9.50    9.92   10.33
   143.6-150.0   114.7-172.1      42.0         7.76    8.19    8.62    9.05    9.48    9.91   10.34   10.78
                 172.1-294.6      44.5         8.11    8.56    9.01    9.46    9.91   10.36   10.81   11.26
   150.0-256.5   114.7-172.1      42.5         7.83    8.26    8.70    9.13    9.57   10.00   10.43   10.87
                 172.1-294.6      45.5         8.26    8.72    9.17    9.63   10.09   10.55   11.01   11.47
                  Over 294.6      42.5   2     7.83    8.26    8.70    9.13    9.57   10.00   10.43   10.87
    Over 256.5   172.1-294.6      49.0         8.82    9.31    9.80   10.29   10.78   11.27   11.76   12.25
                  Over 294.6      46.0   3     8.33    8.80    9.26    9.72   10.19   10.65   11.11   11.57
                COMBINED MARGINAL TAX RATES FOR SINGLE TAXPAYERS WITH ONE PERSONAL EXEMPTION
 -----------------------------------------------------------------------------------------------------------
 
<CAPTION>
                  FEDERAL      COMBINED
    FEDERAL      ADJUSTED       STATE*,
    TAXABLE        GROSS       LOCAL AND                   TAX-EXEMPT ESTIMATED CURRENT RETURN
    INCOME        INCOME        FEDERAL       --------------------------------------------------------------
   (1,000'S)     (1,000'S)     TAX RATE1      4.50%   4.75%   5.00%   5.25%   5.50%   5.75%   6.00%   6.25%
 ------------- -------------  -----------     ------  ------  ------  ------  ------  ------  ------  ------
 <S>           <C>            <C>             <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
 $     0- 23.4 $     0-114.7      21.5         5.73    6.05    6.37    6.69    7.01    7.32    7.64    7.96
    23.4- 56.6       0-114.7      33.5         6.77    7.14    7.52    7.89    8.27    8.65    9.02    9.40
    56.6-100.0       0-114.7      36.0         7.03    7.42    7.81    8.20    8.59    8.98    9.38    9.77
                 114.7-237.2      37.5         7.20    7.60    8.00    8.40    8.80    9.20    9.60   10.00
   100.0-118.0   114.7-237.2      38.5         7.32    7.72    8.13    8.54    8.94    9.35    9.76   10.16
   118.0-256.5   114.7-237.2      43.5         7.96    8.41    8.85    9.29    9.73   10.18   10.62   11.06
                  Over 237.2      42.5   2     7.83    8.26    8.70    9.13    9.57   10.00   10.43   10.87
    Over 256.5    Over 237.2      46.0   3     8.33    8.80    9.26    9.72   10.19   10.65   11.11   11.57
</TABLE>
 
- ------------------
 
    * These tables approximate the effect  of the exemption of distributions  of
tax-exempt  income from  the Maryland Trust  from county taxes,  assuming a rate
equal to  50% of  the applicable  Maryland state  income tax  rate. In  general,
Maryland   local  income  taxes  imposed  by   various  counties  are  equal  to
approximately 50% of the state  income tax liability, although Worcester  County
currently imposes an income tax equal to 30% of the state income tax liability.
 
      1  The table reflects the effect of the limitations on itemized deductions
and the  deduction for  personal exemptions.  They were  designed to  phase  out
certain  benefits  of  these  deductions  for  higher  income  taxpayers.  These
limitations, in effect, raise the current  maximum marginal Federal tax rate  to
approximately  44.0 percent for taxpayers filing  a joint return and entitled to
four personal exemptions and to approximately 41.0 percent for taxpayers  filing
a  single return entitled to only  one personal exemption. These limitations are
subject to certain maximums,  which depend on the  number of exemptions  claimed
and  the total  amount of the  taxpayer's itemized deductions.  For example, the
limitation on itemized deductions  will not cause a  taxpayer to lose more  than
80% of his allowable itemized deductions, with certain exceptions.
 
      2 Federal tax rate reverts to 36.0% after the 80% cap on the limitation on
itemized deductions has been met.
 
      3 Federal tax rate reverts to 39.6% after the 80% cap on the limitation on
itemized deductions has been met.
 
                                      A-2
<PAGE>
                                   APPENDIX B
                              COLORADO DISCLOSURE
 
ECONOMIC FACTORS--COLORADO
 
    RESTRICTIONS  ON  APPROPRIATIONS  AND  REVENUES.    The  State  Constitution
requires that expenditures  for any  fiscal year  not exceed  revenues for  such
fiscal  year.  By statute,  the amount  of General  Fund revenues  available for
appropriation is  based  upon  revenue  estimates  which,  together  with  other
available  resources, must  exceed annual  appropriations by  the amount  of the
unappropriated  reserve  (the  "Unappropriated  Reserve").  The   Unappropriated
Reserve  requirement for fiscal years 1991, 1992 and 1993 was set at 3% of total
appropriations from the General Fund. For fiscal years 1994 and thereafter,  the
Unappropriated   Reserve  retirement   is  set  at   4%.  In   addition  to  the
Unappropriated Reserve, a constitutional  amendment approved by Colorado  voters
in  1992  requires the  State and  each  local government  to reserve  a certain
percentage of  its fiscal  year  spending (excluding  bonded debt  service)  for
emergency  use (the "Emergency Reserve"). The  minimum Emergency Reserve was set
at 1% for 1993 and 2%  for 1994 and is set at  3% for 1995 and later years.  For
fiscal year 1992 and thereafter, General Fund appropriations are also limited by
statute  to  an  amount  equal  to  the  cost  of  performing  certain  required
reappraisals of taxable property plus an amount equal to the lesser of (i)  five
percent  of Colorado  personal income  or (ii)  106% of  the total  General Fund
appropriations for the previous fiscal year. This restriction does not apply  to
any  General Fund appropriations which are required as a result of a new federal
law, a final state or federal court order or moneys derived from the increase in
the rate or amount of  any tax or fee approved  by a majority of the  registered
electors of the State voting at any general election. In addition, the statutory
limit  on the level of  General Fund appropriations may  be exceeded for a given
fiscal year  upon the  declaration of  a  State fiscal  emergency by  the  State
General Assembly.
 
    The  1993 fiscal year ending General  Fund balance was $326.8 million, which
was $196.9  million  over  the combined  Unappropriated  Reserve  and  Emergency
Reserve requirement. The 1994 fiscal year ending General Fund balance was $405.1
million,  or  $234.0  million  over  the  required  Unappropriated  Reserve  and
Emergency Reserve. Based on June 20, 1995 estimates, the 1995 fiscal year ending
General Fund balance is  expected to be $427.0  million, or $204.8 million  over
the required Unappropriated Reserve and Emergency Reserve.
 
    On  November 3, 1992, voters in Colorado approved a constitutional amendment
(the "Amendment") which,  in general,  became effective December  31, 1992,  and
could  restrict  the ability  of  the State  and  local governments  to increase
revenues and impose  taxes. The  Amendment applies to  the State  and all  local
governments, including home rule entities ("Districts"). Enterprises, defined as
government-owned  businesses  authorized to  issue  revenue bonds  and receiving
under 10%  of  annual  revenue in  grants  from  all Colorado  state  and  local
governments combined, are excluded from the provisions of the Amendment.
 
    The  provisions  of the  Amendment are  unclear  and have  required judicial
interpretation.  Among  other  provisions,  beginning  November  4,  1992,   the
Amendment  requires voter approval prior to  tax increases, creation of debt, or
mill levy or valuation for assessment ratio increases. The Amendment also limits
increases  in  government  spending  and  property  tax  revenues  to  specified
percentages. The Amendment requires that District property tax revenues yield no
more  than  the prior  year's revenues  adjusted  for inflation,  voter approved
changes and (except with  regard to school districts)  local growth in  property
values  according to a formula set forth  in the Amendment. School districts are
allowed to adjust tax levies for changes in student enrollment. Pursuant to  the
Amendment, local government spending is to be limited by the same formula as the
limitation  for  property  tax  revenues.  The  Amendment  limits  increases  in
expenditures from the State  General Fund and program  revenues (cash funds)  to
the  growth in inflation plus  the percentage change in  State population in the
prior calendar  year. The  bases for  initial spending  and revenue  limits  are
fiscal  year 1992 spending and 1991 property  taxes collected in 1992. The bases
for spending and revenue limits for fiscal year 1994 and later years will be the
prior fiscal year's spending and property taxes collected in the prior  calendar
year.  Debt service changes,  reductions and voter-approved  revenue changes are
excluded from  the  calculation  bases.  The Amendment  also  prohibits  new  or
increased  real property transfer  tax rates, new State  real property taxes and
local District income taxes.
 
    Litigation concerning  several issues  relating to  the Amendment  has  been
brought  in  the  Colorado courts.  The  litigation deals  with  three principal
issues: (i) whether Districts  can increase mill levies  to pay debt service  on
general  obligation  bonds  without  obtaining voter  approval;  (ii)  whether a
multi-year lease-purchase  agreement  subject  to annual  appropriations  is  an
obligation  which requires voter  approval prior to  execution of the agreement;
and (iii) what constitutes an "enterprise" which is excluded from the provisions
of the  Amendment. In  September, 1994,  the Colorado  Supreme Court  held  that
Districts  can increase  mill levies to  pay debt service  on general obligation
bonds issued  after the  effective date  of  the Amendment;  in June,  1995  the
Colorado  Supreme Court validated mill levy  increases to pay general obligation
bonds issued prior to the Amendment. In late 1994,
 
                                      B-1
<PAGE>
the Colorado Court  of Appeals  held that  multi-year lease-purchase  agreements
subject  to annual appropriation do not require voter approval. The time to file
an appeal in that case has expired. Finally, in May, 1995, the Colorado  Supreme
Court  ruled that entities  with the power  to levy taxes  may not themselves be
"enterprises" for purposes of the Amendment; however, the Court did not  address
the  issue of  how valid  enterprises may be  created. Future  litigation in the
"enterprise" arena may be filed in the future to clarify these issues.
 
    According to the COLORADO ECONOMIC PERSPECTIVE, FOURTH QUARTER, FY  1994-95,
JUNE  20,  1995  (the  "Economic  Report"),  inflation  for  1993  was  4.2% and
population grew  at  the  rate  of 2.9%  in  Colorado.  Accordingly,  under  the
Amendment,  increases in State expenditures during  the 1995 fiscal year will be
limited to 7.1% over  expenditures during the 1994  fiscal year. The  limitation
for  the 1996 fiscal year is projected  to be 7.0%, based on projected inflation
of 4.4% for 1994 and projected population  growth of 2.6% during 1994. The  1994
fiscal  year is the base year for calculating the limitation for the 1995 fiscal
year. For the 1994 fiscal year, General Fund revenues totalled $3,725.2  million
and  program revenues (cash funds) totalled $1,659.9 million, resulting in total
estimated base revenues of  $5,385.1 million. Expenditures  for the 1995  fiscal
year,  therefore, cannot exceed $5,767.4 million.  However, the 1995 fiscal year
General Fund and program revenues (cash funds) are projected to be only $5,664.7
million, or $102.7  million less  than expenditures allowed  under the  spending
limitation.
 
    There  is also a statutory restriction on  the amount of annual increases in
taxes that  the  various  taxing  jurisdictions in  Colorado  can  levy  without
electoral  approval.  This restriction  does not  apply to  taxes levied  to pay
general obligation debt.
 
    STATE FINANCES.    As  the  State  experienced  revenue  shortfalls  in  the
mid-1980s,  it adopted various  measures, including impoundment  of funds by the
Governor, reduction  of  appropriations by  the  General Assembly,  a  temporary
increase  in the  sales tax, deferral  of certain tax  reductions and inter-fund
borrowings. On a GAAP basis, the State had unrestricted General Fund balances at
June 30 of approximately  $16.3 million in fiscal  year 1991, $133.3 million  in
fiscal  year 1992,  $326.8 million  in fiscal year  1993, and  $405.1 million in
fiscal year 1994. The fiscal year 1995 unrestricted General Fund ending  balance
is currently projected to be $427.0 million.
 
    For  fiscal year 1994, the following  tax categories generated the following
percentages of the  State's $3,725.2  million total  gross receipts:  individual
income  taxes represented 51.5% of gross  fiscal year 1994 receipts; sales, use,
and other excise taxes represented 32.4% of gross fiscal year 1994 receipts; and
corporate income taxes represented 3.9% of gross fiscal year 1994 receipts.  The
final   budget  for  fiscal   year  1995  projects   General  Fund  revenues  of
approximately $3,929.6  million  and appropriations  of  approximately  $3,905.9
million.  The percentages of General  Fund revenue generated by  type of tax for
fiscal year 1995 are not expected to be significantly different from fiscal year
1994 percentages.
 
    STATE DEBT.  Under its constitution, the State of Colorado is not  permitted
to  issue general obligation bonds  secured by the full  faith and credit of the
State.  However,  certain  agencies  and  instrumentalities  of  the  State  are
authorized  to  issue  bonds  secured by  revenues  from  specific  projects and
activities. The State enters into  certain lease transactions which are  subject
to  annual  renewal  at the  option  of the  State.  In addition,  the  State is
authorized to issue  short-term revenue anticipation  notes. Local  governmental
units  in the State are also authorized  to incur indebtedness. The major source
of financing for such  local government indebtedness is  an ad valorem  property
tax.  In addition, in order to finance public projects, local governments in the
State can  issue  revenue  bonds payable  from  the  revenues of  a  utility  or
enterprise  or from the proceeds  of an excise tax,  or assessment bonds payable
from special assessments.  Colorado local  governments can  also finance  public
projects  through leases which are subject to annual appropriation at the option
of  the  local  government.  Local  governments  in  Colorado  also  issue   tax
anticipation notes. The Amendment requires prior voter approval for the creation
of  any  multiple fiscal  year debt  or  other financial  obligation whatsoever,
except for refundings at a lower rate or obligations of an enterprise.
 
    STATE ECONOMY.   Based  on estimates  published by  the State  of  Colorado,
Office of State Planning and Budgeting as presented in the Economic Report, over
50%  of non-agricultural employment in Colorado  in 1994 was concentrated in the
retail and wholesale  trade and  service sectors, reflecting  the importance  of
tourism  to  the  State's economy  and  of  Denver as  a  regional  economic and
transportation hub. The  government and  manufacturing sectors  followed as  the
next  largest employment sectors in  the State, representing approximately 17.1%
and 10.9%, respectively, of  non-agricultural employment in  the State in  1994.
The  Office of Planning  and Budgeting projects  similar concentrations for 1995
and 1996.
 
    According to the  Economic Report, the  unemployment rate improved  slightly
from  an average  of 5.2% during  1993 to  4.2% during 1994.  Total retail sales
increased by 12.2%  during 1994. Colorado  continued to surpass  the job  growth
rate  of the U.S., with a 2.8% rate of growth projected for Colorado in 1995, as
compared with 2.7% for the nation as a whole. However, the rate of job growth in
Colorado is projected  to be lower  in 1995 than  the 1994 rate  as a result  of
layoffs  at Lowry Air  Force Base, Public  Service Company, Continental Airlines
and US West.
 
                                      B-2
<PAGE>
    Personal income rose 7.5% in Colorado  during 1993 and 7.6% in 1992.  During
1994,  personal income  rose 6.6%  in Colorado,  as compared  with 6.1%  for the
nation as a whole.
 
    Economic conditions  in  the State  may  have continuing  effects  on  other
governmental  units within the State (including issuers of the Colorado Bonds in
the  Colorado  Traditional  Trust),  which,   to  varying  degrees,  have   also
experienced  reduced revenues as  a result of  recessionary conditions and other
factors.
 
COLORADO TAXABLE ESTIMATED CURRENT RETURN TABLE
 
    The following tables show the approximate taxable estimated current  returns
for  individuals  that are  equivalent to  tax-exempt estimated  current returns
under combined Federal and  state taxes, using  published 1994 marginal  Federal
tax  rates and marginal state tax rates  currently available and scheduled to be
in  effect.  The  tables  incorporate  increased  tax  rates  for  higher-income
taxpayers  that were  included in  the Revenue  Reconciliation Act  of 1993. For
cases in which more than one state  bracket falls within a Federal bracket,  the
highest  state bracket is combined with  the Federal bracket. The combined state
and Federal tax  brackets shown  reflect the fact  that state  tax payments  are
currently  deductible for Federal  tax purposes. The  tables illustrate what you
would have to  earn on  taxable investments  to equal  the tax-exempt  estimated
current  return for your income  tax bracket. A taxpayer's  marginal tax rate is
affected by both his taxable income  and his adjusted gross income. Locate  your
adjusted  gross and  your taxable  income (which  is your  adjusted gross income
reduced by any deductions and exemptions), then locate your tax bracket based on
joint or single  tax filing.  Read across  to the  equivalent taxable  estimated
current return you would need to match the tax-free income.
 
 COMBINED MARGINAL TAX RATES FOR JOINT TAXPAYERS WITH FOUR PERSONAL EXEMPTIONS
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                  FEDERAL
    FEDERAL      ADJUSTED      COMBINED
    TAXABLE        GROSS       STATE AND                   TAX-EXEMPT ESTIMATED CURRENT RETURN
    INCOME        INCOME        FEDERAL       --------------------------------------------------------------
   (1,000'S)     (1,000'S)     TAX RATE1      4.75%   5.00%   5.25%   5.50%   5.75%   6.00%   6.25%   6.50%
 ------------- -------------  -----------     ------  ------  ------  ------  ------  ------  ------  ------
 <S>           <C>            <C>             <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
 $     0- 38.0 $     0-111.8      19.5   %     5.90    6.21    6.52    6.83    7.14    7.45    7.76    8.07
    38.0- 91.9       0-111.8      31.5         6.93    7.30    7.66    8.03    8.39    8.76    9.12    9.49
                 111.8-167.7      32.5         7.04    7.41    7.78    8.15    8.52    8.89    9.26    9.63
    91.9-140.0       0-111.8      34.5         7.25    7.63    8.02    8.40    8.78    9.16    9.54    9.92
                 111.8-167.7      35.5         7.36    7.75    8.14    8.53    8.91    9.30    9.69   10.08
                 167.7-290.2      37.5         7.60    8.00    8.40    8.80    9.20    9.60   10.00   10.40
   140.0-250.0   111.8-167.7      40.0         7.92    8.33    8.75    9.17    9.58   10.00   10.42   10.83
                 167.7-290.2      43.0         8.33    8.77    9.21    9.65   10.09   10.53   10.96   11.40
                  Over 290.2      40.0   2     7.92    8.33    8.75    9.17    9.58   10.00   10.42   10.83
    Over 250.0   167.7-290.2      47.0         8.96    9.43    9.91   10.38   10.85   11.32   11.79   12.26
                  Over 290.2      44.0   3     8.48    8.93    9.38    9.82   10.27   10.71   11.16   11.61
</TABLE>
 
  COMBINED MARGINAL TAX RATES FOR SINGLE TAXPAYERS WITH ONE PERSONAL EXEMPTION
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                  FEDERAL
    FEDERAL      ADJUSTED      COMBINED
    TAXABLE        GROSS       STATE AND                   TAX-EXEMPT ESTIMATED CURRENT RETURN
    INCOME        INCOME        FEDERAL       --------------------------------------------------------------
   (1,000'S)     (1,000'S)     TAX RATE1      4.75%   5.00%   5.25%   5.50%   5.75%   6.00%   6.25%   6.50%
 ------------- -------------  -----------     ------  ------  ------  ------  ------  ------  ------  ------
 <S>           <C>            <C>             <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
 $     0- 22.8 $     0-111.8      19.5   %     5.90    6.21    6.52    6.83    7.14    7.45    7.76    8.07
    22.8- 55.1       0-111.8      31.5         6.93    7.30    7.66    8.03    8.39    8.76    9.12    9.49
    55.1-115.0       0-111.8      34.5         7.25    7.63    8.02    8.40    8.78    9.16    9.54    9.92
                 111.8-234.3      36.0         7.42    7.81    8.20    8.59    8.98    9.38    9.77   10.16
   115.0-250.0   111.8-234.3      41.0         8.05    8.47    8.90    9.32    9.75   10.17   10.59   11.02
                  Over 234.3      40.0   2     7.92    8.33    8.75    9.17    9.58   10.00   10.42   10.83
    Over 250.0    Over 234.3      44.0   3     8.48    8.93    9.38    9.82   10.27   10.71   11.16   11.61
<FN>
- ------------------
      1  The table reflects the effect of the limitations on  itemized deductions and the deduction for personal exemptions. They
were designed to phase out certain benefits of these deductions for higher income taxpayers. These limitations, in effect,  raise
the  current maximum marginal Federal tax rate to approximately 44.0  percent for taxpayers filing a joint return and entitled to
four personal exemptions and to  approximately 41.0 percent for  taxpayers filing a single return  entitled to only one  personal
exemption.  These limitations are  subject to certain maximums,  which depend on  the number of exemptions  claimed and the total
amount of the taxpayer's itemized  deductions. For example, the  limitation on itemized deductions will  not cause a taxpayer  to
lose more than 80% of his allowable itemized deductions, with certain exceptions.
      2 Federal tax rate reverts to 36.0% after the 80% cap on the limitation on itemized deductions has been met.
      3 Federal tax rate reverts to 39.6% after the 80% cap on the limitation on itemized deductions has been met.
</TABLE>
 
                                      B-3
<PAGE>
                                   APPENDIX C
                              MICHIGAN DISCLOSURE
 
ECONOMIC FACTORS--MICHIGAN
 
    As  described above,  except to  the extent  the Michigan  Traditional Trust
invests in temporary  investments, the  Michigan Traditional  Trust will  invest
substantially  all of its net assets in Michigan Bonds. The Michigan Traditional
Trust is  therefore susceptible  to political,  economic or  regulatory  factors
affecting  issuers of Michigan Bonds. The information set forth below is derived
from official statements prepared  in connection with  the issuance of  Michigan
Bonds  and  other  sources  that  are  generally  available  to  investors.  The
information is  provided  as  general  information intended  to  give  a  recent
historical  description and  is not  intended to  indicate future  or continuing
trends in  the  financial or  other  positions of  the  State of  Michigan  (the
"State"). This information has not been independently verified.
 
    There  can  be no  assurance that  current or  future statewide  or regional
economic difficulties, and the  resulting impact on  issuers and other  obligors
with  respect to the Michigan Insured Trust generally, will not adversely affect
the market  value  of Michigan  Bonds  held in  the  portfolio of  the  Michigan
Traditional  Trust or the ability of particular obligors to make timely payments
of debt service on (or relating to) those obligations.
 
    The principal sectors of  the State's economy  are manufacturing of  durable
goods  (including automobile  and office  equipment manufacturing),  tourism and
agriculture. As reflected in historical employment figures, the State's  economy
has   lessened  its  dependence  upon  durable  goods  manufacturing.  In  1960,
employment in such  industry accounted for  33% of the  State's workforce.  This
figure  fell  to 17%  by  1994. However,  manufacturing  (including auto-related
manufacturing) continues to be an important  part of the State's economy.  These
industries  are highly cyclical. This factor  could adversely affect the revenue
streams of the State and its political subdivisions because of its impact on tax
sources, particularly sales taxes, income taxes and single business taxes.
 
    Recently, as well as historically, the average monthly unemployment rate  in
the  State has been higher  than the average figures  for the United States. For
example, for 1993 the average monthly unemployment  rate in the State was 7%  as
compared  to a national average of 6.8%.  However, for 1994, the average monthly
unemployment rate in the  State was 5.9%  as compared to  a national average  of
6.1%.
 
    BUDGET.    The  budget  of  the  State  is  a  complete  financial  plan and
encompasses the revenues and expenditures, both operating and capital outlay, of
the General Fund and special  revenue funds. The budget  is prepared on a  basis
consistent  with generally  accepted accounting  principles (GAAP).  The State's
Fiscal Year begins on  October 1 and  ends September 30  of the following  year.
Under  State  law, the  executive budget  recommendations for  any fund  may not
exceed the estimated  revenue thereof,  and an itemized  statement of  estimated
revenues  in each operating fund  must be contained in  an appropriation bill as
passed by the Legislature, the total of which may not be less than the total  of
all  appropriations  made  from  the  fund  for  that  fiscal  year.  The  State
Constitution provides that proposed expenditures  from and revenues of any  fund
must be in balance and that any prior year's surplus or deficit in any fund must
be included in the succeeding year's budget for that fund.
 
    The  State's Constitution limits the amount of total State revenues that may
be raised from taxes  and other sources. State  revenues (excluding federal  aid
and  revenues used for  payment of principal and  interest on general obligation
bonds) in  any  fiscal year  are  limited to  a  specified percentage  of  State
personal  income  in the  prior  calendar year  or  average of  the  prior three
calendar years, whichever is greater. The State may raise taxes in excess of the
limit in emergency situations.
 
    The State  finances its  operations  through the  State's General  Fund  and
special  revenue funds. The General Fund receives revenues of the State that are
not specifically required to be included  in the special revenue funds.  General
Fund  revenues are obtained  approximately 59 percent from  the payment of State
taxes and 41  percent from  federal and  non-tax revenue  sources. Tax  revenues
credited  to the  General Fund include  the State's personal  income tax, single
business tax,  use tax,  and  approximately 15%  of  sales tax  collections.  In
addition  the State levies various other  taxes. Approximately one-half of total
General Fund expenditures are  made by the State's  Department of Education  and
Department  of Social Services. Other  significant expenditures from the General
Fund provide funds for law  enforcement, general State government, debt  service
and capital outlays.
 
    Despite  modest surplus in the three preceding fiscal years, the State ended
fiscal years 1989-90 and  1990-91 with negative balances  of $310.3 million  and
$169.4  million, respectively. This  negative balance had  been eliminated as of
the end of fiscal year 1991-92, which ended September 30, 1992. The State  ended
fiscal  year 1992-93 with a projected balance  of $26 million after the transfer
of $282.6  million to  the BSF  described  below. The  state ended  fiscal  year
1993-94  with a General Fund balance of  $460.2 million which was transferred to
the Counter-Cyclical Budget and Economic Stabilization Fund ("BSF".)
 
                                      C-1
<PAGE>
    The State budget  for the  1994-95 fiscal year,  which began  on October  1,
1994,  was passed  by the Legislature  in July  1994. This budget  passed by the
Legislature totaled $8,030.8 million from General Fund/general purpose revenues.
The Governor vetoed $6.5 million of these appropriations.
 
    The Governor's Executive Budget for fiscal year 1995-96 was submitted to the
Legislature on February 9,  1995. The fiscal  year 1995-96 General  Fund/general
purpose Executive Budget recommendation totaled $8,507.6 million.
 
    The State also maintains the BSF which accumulates balances during the years
of  significant  economic growth  and which  may be  utilized during  periods of
budgetary shortfalls. The unreserved balance for the BSF for the 1990-91  fiscal
year  end was $182.2 million, for the  1991-92 fiscal year end was $20.1 million
and for the 1992-93 fiscal year was $303.4 million. The ending unreserved fiscal
year 1993-94 General Fund balance of $460.2 million was transfered to the BSF.
 
    DEBT.  The State  Constitution limits State general  obligation debt to  (i)
short-term  debt for State operating  purposes which must be  repaid in the same
fiscal year in which it is issued and which cannot exceed 15% of the undedicated
revenues received by the State during the preceding fiscal year, (ii) short  and
long  term debt unlimited  in amount for  the purpose of  making loans to school
districts and (iii) long term debt for voter-approved purposes.
 
    The State has issued and has  outstanding general obligation full faith  and
credit   bonds  for  water  resources,   environmental  protection  program  and
recreation program purposes totalling, as  of September 30, 1994,  approximately
$382  million.  The  State  anticipates  issuing  additional  general obligation
environmental bonds in 1995.  In November 1988 the  State's voters approved  the
issuance   of  $800  million  of  general  obligation  bonds  for  environmental
protection and recreational purposes; of this amount approximately $423  million
remains  to be issued. The State issued $500 million in general obligation notes
on March 16, 1995  which will mature  September 29, 1995.  The State issued  $85
million  in general obligation school loan notes in April 1995 which will mature
on August 15, 1995.
 
    OTHER ISSUERS OF  MICHIGAN MUNICIPAL  OBLIGATIONS.   There are  a number  of
state  agencies, instrumentalities and political  subdivisions of the State that
issue bonds,  some of  which may  be conduit  revenue obligations  payable  from
payments  from private borrowers. These entities are subject to various economic
risks and uncertainties, and the credit quality of the securities issued by them
may vary considerably from  obligations backed by the  full faith and credit  of
the State.
 
    RATINGS.   Currently  the State's general  obligation bonds are  rated A1 by
Moody's, "AA" by S&P and "AA" by Fitch Investors Service, Inc.
 
    LITIGATION.   The State  is a  party to  various legal  proceedings  seeking
damages  or  injunctive  or other  relief.  In addition  to  routine litigation,
certain of these proceedings  could, if unfavorably resolved  from the point  of
view  of  the  State, substantially  affect  State programs  or  finances. These
lawsuits involve  programs  generally  in  the  areas  of  corrections,  highway
maintenance,  social services, tax collection, commerce and budgetary reductions
to school  districts and  governmental  units and  court funding.  The  ultimate
disposition of these proceedings is not determinable.
 
    PROPERTY  TAX AND SCHOOL FINANCE REFORM.   The State Constitution limits the
extent to which  municipalities or  political subdivisions may  levy taxes  upon
real and personal property through a process that regulates assessments.
 
    On  August 19, 1993,  the Governor signed  into law Act  145, Public Acts of
Michigan, 1993 ("Act 145"),  a measure which  would have significantly  impacted
financing  of primary and secondary school  operations and which has resulted in
additional property tax  and school  finance reform legislation.  Act 145  would
have  exempted all  property in  the State of  Michigan from  millage levied for
local and intermediate school districts  operating purposes, other than  millage
levied for community colleges, effective July 1, 1994. In order to replace local
property  tax revenues lost as a result of Act 145, the Michigan Legislature, in
December 1993, enacted several  statutes which address  property tax and  school
finance reform.
 
    The  property  tax  and school  finance  reform measures  included  a ballot
proposal which was approved by  the voters on March  15, 1994. Effective May  1,
1994,  the State sales and use tax was increased from 4% to 6%, the State income
tax was decreased from 4.6% to 4.4%,  the cigarette tax was increased from  $.25
to $.75 per pack and an additional tax of 16% of the wholesale price was imposed
on  certain  other tobacco  products.  A .75%  real  estate transfer  tax become
effective January 1,  1995. Beginning  in 1994, state  property tax  of 6  mills
began  to be imposed on all real  and personal property currently subject to the
general property tax. The ability of school districts to levy property taxes for
school operating purposes will be partially restored. A school board will,  with
voter  approval, be able to levy  up to the lesser of  18 mills or the number of
mills levied in 1993 for  school operating purposes, on non-homestead  property.
The  adopted  ballot  proposal  contained  additional  provisions  regarding the
 
                                      C-2
<PAGE>
ability of local school districts to levy taxes as well as a limit on assessment
increases for each parcel of property, beginning in 1995 to the lesser of 5%  or
the  rate of inflation.  When property is subsequently  sold, its assessed value
will revert to the current assessment level of 50% of true cash value. Under the
adopted ballot proposal,  much of the  additional revenue generated  by the  new
taxes will be dedicated to the State School Aid Fund.
 
    The  adopted ballot  proposal contained a  system of  financing local school
operating costs relying  upon a foundation  allowance amount which  may vary  by
district  based upon historical spending levels. State funding will provide each
school district  an amount  equal  to the  difference between  their  foundation
allowance  and the  revenues generated by  their local property  tax levy. Local
school districts would also be entitled  to levy supplemental property taxes  to
generate  additional revenue  if their foundation  allowance is  less than their
historical per pupil  expenditures. The adopted  ballot proposal also  contained
provisions  which allow for the levy of a limited number of enhancement mills on
regional and local school district bases.
 
    The adopted  ballot proposal  shifted significant  portions of  the cost  of
local  school operations  from local  school districts  to the  State and raised
additional State  revenues  to  fund  these  additional  State  expenses.  These
additional  revenues will be included  within the State's constitutional revenue
limitations and may impact the State's  ability to raise additional revenues  in
the future.
 
MICHIGAN TAXABLE ESTIMATED CURRENT RETURN TABLE
 
    The  following tables show the approximate taxable estimated current returns
for individuals  that are  equivalent to  tax-exempt estimated  current  returns
under  combined Federal and  state taxes, using  published 1994 marginal Federal
tax rates and marginal state tax  rates currently available and scheduled to  be
in  effect.  The  tables  incorporate  increased  tax  rates  for  higher-income
taxpayers that were  included in  the Revenue  Reconciliation Act  of 1993.  For
cases  in which more than one state  bracket falls within a Federal bracket, the
highest state bracket is combined with  the Federal bracket. The combined  state
and  Federal tax  brackets shown  reflect the fact  that state  tax payments are
currently deductible for Federal  tax purposes. The  tables illustrate what  you
would  have to  earn on  taxable investments  to equal  the tax-exempt estimated
current return for your  income tax bracket. A  taxpayer's marginal tax rate  is
affected  by both his taxable income and  his adjusted gross income. Locate your
adjusted gross and  your taxable  income (which  is your  adjusted gross  income
reduced by any deductions and exemptions), then locate your tax bracket based on
joint  or single  tax filing.  Read across  to the  equivalent taxable estimated
current return you would need to match the tax-free income.
 
                                      C-3
<PAGE>
 COMBINED MARGINAL TAX RATES FOR JOINT TAXPAYERS WITH FOUR PERSONAL EXEMPTIONS
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                  FEDERAL
    FEDERAL      ADJUSTED      COMBINED
    TAXABLE        GROSS      STATE* AND                   TAX-EXEMPT ESTIMATED CURRENT RETURN
    INCOME        INCOME        FEDERAL       --------------------------------------------------------------
   (1,000'S)     (1,000'S)     TAX RATE1      4.75%   5.00%   5.25%   5.50%   5.75%   6.00%   6.25%   6.50%
 ------------- -------------  -----------     ------  ------  ------  ------  ------  ------  ------  ------
 <S>           <C>            <C>             <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
 $     0- 39.0 $     0-114.7      21.0   %     6.01    6.33    6.65    6.96    7.28    7.59    7.91    8.23
    39.0- 94.3       0-114.7      33.0         7.09    7.46    7.84    8.21    8.58    8.96    9.33    9.70
                 114.7-172.1      34.0         7.20    7.58    7.95    8.33    8.71    9.09    9.47    9.85
    94.3-143.6       0-114.7      36.0         7.42    7.81    8.20    8.59    8.98    9.38    9.77   10.16
                 114.7-172.1      36.5         7.48    7.87    8.27    8.66    9.06    9.45    9.84   10.24
                 172.1-294.6      39.0         7.79    8.20    8.61    9.02    9.43    9.84   10.25   10.66
   143.6-256.5   114.7-172.1      41.5         8.12    8.55    8.97    9.40    9.83   10.26   10.68   11.11
                 172.1-294.6      44.0         8.48    8.93    9.38    9.82   10.27   10.71   11.16   11.61
                  Over 294.6      41.5   2     8.12    8.55    8.97    9.40    9.83   10.26   10.68   11.11
    Over 256.5   172.1-294.6      48.0         9.13    9.62   10.10   10.58   11.06   11.54   12.02   12.50
                  Over 294.6      45.0   3     8.64    9.09    9.55   10.00   10.45   10.91   11.36   11.82
</TABLE>
 
  COMBINED MARGINAL TAX RATES FOR SINGLE TAXPAYERS WITH ONE PERSONAL EXEMPTION
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                  FEDERAL
    FEDERAL      ADJUSTED      COMBINED
    TAXABLE        GROSS      STATE* AND                   TAX-EXEMPT ESTIMATED CURRENT RETURN
    INCOME        INCOME        FEDERAL       --------------------------------------------------------------
   (1,000'S)     (1,000'S)     TAX RATE1      4.75%   5.00%   5.25%   5.50%   5.75%   6.00%   6.25%   6.50%
 ------------- -------------  -----------     ------  ------  ------  ------  ------  ------  ------  ------
 <S>           <C>            <C>             <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>
 $     0- 23.4 $     0-114.7      21.0   %     6.01    6.33    6.65    6.96    7.28    7.59    7.91    8.23
    23.4- 56.6       0-114.7      33.0         7.09    7.46    7.84    8.21    8.58    8.96    9.33    9.70
    56.6-118.0       0-114.7      36.0         7.42    7.81    8.20    8.59    8.98    9.38    9.77   10.16
                 114.7-237.2      37.5         7.60    8.00    8.40    8.80    9.20    9.60   10.00   10.40
   118.0-256.5   114.7-237.2      42.0         8.19    8.62    9.05    9.48    9.91   10.34   10.78   11.21
                  Over 237.2      41.5   2     8.12    8.55    8.97    9.40    9.83   10.26   10.68   11.11
    Over 256.5    Over 237.2      45.0   3     8.64    9.09    9.55   10.00   10.45   10.91   11.36   11.82
<FN>
- ------------------
* The state tax rate which is used in  the table is based on a 4.4% state personal  income tax rate and a 3.5% tax on  intangible
income.  The combined tax brackets reflect Federal and state income and  state intangibles taxes but do not reflect the effect of
the exemption from local income taxes; accordingly, Michigan residents  subject to such local income taxes would need a  somewhat
higher taxable return than those shown to equal the tax-exempt yield of the Michigan Trust.
      1  The table reflects the effect of the limitations on  itemized deductions and the deduction for personal exemptions. They
were designed to phase out certain benefits of these deductions for higher income taxpayers. These limitations, in effect,  raise
the  current maximum marginal Federal tax rate to approximately 44.0  percent for taxpayers filing a joint return and entitled to
four personal exemptions and to  approximately 41.0 percent for  taxpayers filing a single return  entitled to only one  personal
exemption.  These limitations are  subject to certain maximums,  which depend on  the number of exemptions  claimed and the total
amount of the taxpayer's itemized  deductions. For example, the  limitation on itemized deductions will  not cause a taxpayer  to
lose more than 80% of his allowable itemized deductions, with certain exceptions.
      2 Federal tax rate reverts to 36.0% after the 80% cap on the limitation on itemized deductions has been met.
      3 Federal tax rate reverts to 39.6% after the 80% cap on the limitation on itemized deductions has been met.
</TABLE>
 
                                      C-4
<PAGE>

Statement of differences between electronic filing and printed document.
   Pursuant to Rule 499(c) (7) under the Securities Act of 1933 and Rule
20-11 under the Investment Company Act of 1940, Registrant hereby identifies
those differences in the foregoing document between the electronic format in
which it is filed and the printed form in which it will be circulated:
   (1) The printed and distributed prospectus may be paged differently
because the printed document may contain a different amount of information on
each page from that contained in the electronic transmission.
   (2) On the cover page, in the index and on the last page of the printed
document, solid vertical bars will appear.
   (3) In the printed document, footnote symbols may include a "dagger" or
multiple "dagger".  The "dagger" symbol is represented as # in the electronic
document.
   (4) The printed and distributed prospectus will not  contain the
preliminary prospectus legend included at the beginning of the first
prospectus page.


<PAGE>

                       CONTENTS OF REGISTRATION STATEMENT

A.  BONDING ARRANGEMENTS OF DEPOSITOR:

    The Depositor has obtained  the following Stockbrokers Blanket Bonds
for its officers, directors and employees:

    INSURER/POLICY NO.                                     AMOUNT

    United Pacific Insurance Co.                           $10,000,000
    Reliance Insurance Company
    B 74 92 20

    Aetna Casualty and Surety                              $10,000,000
    08 F10618BCA

    St. Paul Insurance Co.                                 $ 6,000,000
    400 HC 1051

B.  This amendment of Registration Statement comprises the following papers 
and documents:

              The facing sheet

              The cross-reference sheet
 
              The Prospectus

              The signatures

              Consents of Independent Public
              Accountants and Counsel as indicated

              Exhibits as listed on page S-5

C.  Explanatory Note:

          This Amendment No. 1 to the Registration Statement contains
     multiple separate prospectuses.  Each prospectus will relate to an
     individual unit investment trust and will consist of a Part A, a
     Part B and an Information Supplement.  Each prospectus will be
     identical with the exception of the respective Part A which will
     contain the financial information specific to such underlying unit
     investment trust.

D.  Undertakings:

          1.  With the exception of the information included in the state
     specific appendices to the Information Supplement, which will vary
     depending upon the make-up of a Fund or updated to reflect current
     events, any amendment to a Fund's Information Supplement will be
     subject to the review of the staff of the Securities and Exchange
     Commission prior to distribution; and

          2.  The Information Supplement to the Trust will not include third
     party financial information. 
<PAGE>

                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, the
Registrant, Nuveen Tax-Exempt Unit Trust, Series 823 has duly caused this
Amendment of Registration Statement to be signed on its behalf by the
undersigned thereunto duly authorized in the City of Chicago and State of
Illinois on 9/07/95.

 
                                NUVEEN TAX-EXEMPT UNIT TRUST, SERIES 823
                                (Registrant)

                                By JOHN NUVEEN & CO. INCORPORATED
                                (Depositor)


                       
                                By: Larry Woods Martin
                                    _________________________________
                                    Vice President


                        
                           Attest:  Morrison C. Warren
                                    __________________________________
                                    Assistant Secretary


<PAGE>

    Pursuant to the requirements of the Securities Act of 1933, this Amendment
of Registration Statement has been signed below by the following persons in 
the capacities and on the dates indicated:


    SIGNATURE                     TITLE*                       DATE

Richard J. Franke       Chairman, Board of Directors  )
                        Chief Executive Officer and   )
                        Director                      )
                                                      )
Donald E. Sveen         President, Chief Operating    )
                        Officer and Director          )
                                                      )
                                             
Anthony T. Dean         Executive Vice President      ) Larry Woods Martin
                        and Director                  ) Attorney-In-Fact**
                                                      )
Timothy T. Schwertfeger Executive Vice President      )
                        and Director                  )

John P. Amboian         Chief Financial Officer and   )
                        Executive Vice President      )

O. Walter Renfftlen     Vice President and Controller )
                        (Principal Accounting Officer))
                                                      )
                                                      )9/07/95
___________________

*The titles of the persons named herein represent their capacity in and
relationship to John Nuveen & Co. Incorporated, the Depositor.

**The powers of attorney were filed on Form SE for Messrs. Franke, 
Sveen, Renfftlen, Dean and Schwertfeger with the Amendment to the 
Registration Statement on Form S-6 of Nuveen Tax-Exempt Unit Trust, 
Series 671 (File No. 33-49175). The Power of Attorney for Messr. Amboian
is included herein as Exhibit 7.1.


<PAGE>

823

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

    The consent of Arthur Anderson LLP to the use of its name in the Prospectus
included in the Registration Statement is filed by this amendment as Exhibit
4.4 to the Registratin Statement.
                       
                        CONSENT OF CHAPMAN AND CUTLER

    The consent of Chapman and Cutler to the use of its name in the Prospectus
included in the Registration Statement is contained in its opinions filed by
this amendment as Exhibits 3.1 and 3.2 to the Registration Statement.

                            CONSENT OF STATE COUNSEL

    The consents of special counsel to the Fund for state tax matters to the 
use of their names in the Prospectus included in the Registration Statement 
are contained in their opinions filed by this amendment as Exhibit 3.3 to the
Registration Statement.

                          CONSENT OF STANDARD & POOR'S,
                     A DIVISION OF THE MCGRAW-HILL COMPANIES 

    The consent of Standard & Poor's, a Division of The McGraw-Hill
Companies, to the use of its name in the Prospectus included in the Registration
Statement is filed by this amendment as Exhibit 4.1 to the Registration
Statement.

                   CONSENT OF KENNY S&P EVALUATION SERVICES

    The consent of Kenny S&P Evaluation Services to the use of its name in the
Prospectus included in the Registration Statement is filed by this amendment 
as Exhibit 4.2 to the Registration Statement.

                      CONSENT OF CARTER, LEDYARD & MILBURN

    The consent of Carter, Ledyard & Milburn to the use of its name in the
Prospectus included in the Registration Statement is filed by this amendment 
as Exhibit 4.3 to the Registration Statement.

<PAGE>

                                LIST OF EXHIBITS


1.1 (a)  Copy of Standard Terms and Conditions of Trust Between John Nuveen &
         Co. Incorporated, Depositor, and The Chase Manhattan Bank (National
         Association), Trustee.

1.1 (b)  Trust Indenture and Agreement.

2.1      Copy of Certificate of Ownership (Included in Exhibit 1.1(a) on
         pages 2 to 8, inclusive, and incorporated herein by reference).

3.1      Opinion of counsel as to legality of securities being registered.

3.2      Opinion of counsel as to Federal income tax status of securities
         being registered.

3.3      Opinions of special state counsel to the Fund for state tax matters
         as to income tax status to residents of the respective states of the
         units of the respective trusts and consents to the use of their names
         in the Prospectus.

4.1      Consent of Standard & Poor's, a Division of The McGraw-Hill Companies.

4.2      Consent of Kenny S&P Evaluation Services.

4.3      Consent of Carter, Ledyard & Milburn.

4.4      Consent of Arthur Anderson LLP

6.1      List of Directors and Officers of Depositor and other related 
         information.  

7.1      Power of Attorney
     


<PAGE>

Standard Terms and Conditions of Trust
for
Nuveen Tax-Exempt Unit Trust Series 823
and subsequent Series
Effective:  September 7, 1995
Between
John Nuveen & Co. Incorporated
     As Depositor
and
The Chase Manhattan Bank (National Association)
     As Trustee
______________________________




- --
Trust Indenture And Agreement
Nuveen Tax-Exempt Unit Trust
Table of Contents
Section   Heading   Page
Form of Certificates     2
Form of Assignment  7
Statement Regarding Distributions  7
Article I Definitions    8
Article II     Deposit of Bonds; Acceptance of Trust; Form
and Issuance of Certificates; Insured Trust Bond Insurance  
12
Section 2.01.  Deposit of Bonds    12
Section 2.02.  Acceptance of Trust 12
Section 2.03.  Issue of Certificates and Establishment of
Book Entry Positions  12
Section 2.04.  Separate Trusts     13
Section 2.05.  Form of Certificates     13
Section 2.06.  Insured Trust Bond Insurance  13
Article III    Administration of Fund   14
Section 3.01.  Initial Cost   14
Section 3.02.  Interest Account    14
Section 3.03.  Principal Account   15
Section 3.04.  Reserve Account     15
Section 3.05.  Distributions  15
Section 3.06.  Distribution Statements  19
Section 3.07.  Sale of Bonds  21
Section 3.08.  Refunding Bonds     22
Section 3.09.  Bond Counsel   22
Section 3.10.  Notice and Sale by Trustee    23
Section 3.11.  Trustee Not to Amortize  23
Section 3.12.  Liability of Depositor   23
Section 3.13.  Notice to Depositor 23
Section 3.14.  Limited Replacement of Special Bonds    23
Article IV     Evaluation, Redemption, Purchase, Transfer or
Interchange of Units and Replacement of Certificates  25
Section 4.01.  Evaluation     25
Section 4.02.  Redemptions by Trustee; Purchases by
Depositor    27
Section 4.03.  Transfer or Interchange of Units   28
Section 4.04.  Certificates Mutilated, Destroyed, Stolen or
Lost 29
Section 4.05.  Compensation of Depositor     30
Article V Trustee   31
Section 5.01.  General Definition of Trustee's Liabilities,
Rights and Duties   31
Section 5.02.  Books, Records and Reports    33
Section 5.03.  Indenture and List of Bonds on File     34
Section 5.04.  Compensation   34
Section 5.05.  Removal and Resignation of Trustee; Successor 
   35
Section 5.06.  Qualifications of Trustee     36
Article VI     Rights of Unitholders    36
Section 6.01.  Beneficiaries of Trust   36
Section 6.02.  Rights, Terms and Conditions  36
Article VII    Additional Covenants; Miscellaneous
Provisions    37
Section 7.01.  Amendments     37
Section 7.02.  Termination    37
Section 7.03.  Construction   39
Section 7.04.  Registration of Units    39
Section 7.05.  Written Notice 39
Section 7.06.  Severability   40
Section 7.07.  Dissolution of Depositor Not to Terminate   
40
__________________________
This Contents does not constitute part of the Indenture.




Standard Terms and Conditions of Trust
for
Nuveen Tax-Exempt Unit Trust Series 823
and subsequent Series
Effective September 7, 1995
These Standard Terms and Conditions of Trust effective
September 7, 1995 are executed by and between John Nuveen &
Co. Incorporated, as Depositor and The Chase
Manhattan Bank (National Association), as Trustee.
Witnesseth That:
In consideration of the premises and of the mutual
agreements herein contained, the Depositor and the Trustee
agree as follows:
Introduction
These Standard Terms and Conditions of Trust, effective
September 7, 1995, shall be applicable to Nuveen Tax-Exempt
Unit Trust Series 823 and all subsequent Series
established after the date of effectiveness hereof, as
provided in this paragraph.  For Nuveen Tax-Exempt Unit
Trust Series 823 and all subsequent Series
established after the date of effectiveness hereof to which
these Standard Terms and Conditions of Trust, effective
September 7, 1995, are to be applicable, the
Depositor and the Trustee shall execute a Trust Indenture
and Agreement, incorporating by reference these Standard
Terms and Conditions of Trust, effective September
7, 1995, and designating any exclusion from or exception to
such incorporation by reference for the purposes of that
Series or variation of the terms hereof for the
purposes of that Series and specifying for that Series and
for each Trust in such Series (i) the Bonds deposited in
trust, (ii) the fractional undivided interest
represented by each Unit and (iii) the number of Units of
the Trust.
Whereas, it is desired to expand the market for certain
obligations the interest income on which is not includible
in gross income pursuant to the applicable
provisions of the United States Internal Revenue Code of
1986, as amended, or pursuant to other provisions of law,
some of which obligations, as individual issues or
parts thereof, might be unavailable or impracticable as
investments to certain individual investors, and to provide
proper diversification to such investors,
particularly those with limited investment capital; and
Whereas, the Depositor desires to provide for the collection
and distribution of the principal of and interest on such
obligations by the Trustee to such persons as
shall purchase an interest therein, as hereinafter provided;
and
Whereas, the Depositor has acquired and, concurrently with
the execution and delivery hereof, has deposited in trust
with the Trustee the Tax-exempt bonds and/or
evidences of ownership interests in principal and/or
interest payments on such Tax-exempt bonds (the "Bonds") (or
delivery statements relating to contracts for the
purchase thereof), listed in the Schedules set forth for the
respective portfolios of each Series of the Nuveen
Tax-Exempt Unit Trust indicated in the Trust
Agreement hereinafter referred to as the National
Traditional Trust, the Long Intermediate Traditional Trust,
the Intermediate Traditional Trust, the Short
Intermediate Traditional Trust, the Short Term Traditional
Trust, the National Insured Trust, the Long Intermediate
Insured Trust, the Intermediate Insured Trust,
the Short Intermediate Insured Trust, the Short Term Insured
Trust and individual trusts consisting of Bonds the interest
on which is exempt from certain taxation in
specific states ("[State] Traditional Trust" or "[State]
Intermediate Traditional Trust" or "[State] Insured Trust"
or "[State] Intermediate Insured Trust" or
"[State] Short Intermediate Insured Trust"), or any one or
two of such Trusts, included in the Fund, such Trusts being
created hereunder and to be held by the
Trustee in separate Trusts upon the terms and conditions
hereinafter set forth for the use and benefit of all owners
of Units of the respective Trusts of the Nuveen
Tax-Exempt Unit Trust of that Series indicated in the Trust
Agreement (hereinafter called the "Units"); and
Whereas, concurrently with the delivery to the Trustee of
the Bonds listed in the Schedules attached to the Trust
Agreement, the Insurer has delivered to and
deposited with the Trustee, a Municipal Bond Fund Insurance
Policy or Policies to protect each Insured Trust and the
Unitholders thereof against nonpayment of
principal and interest when due on any Bond or Bonds; and
Whereas, concurrently with the receipt of the aforesaid
deposit the Trustee has registered on the registration books
of the respective Trust the ownership by The
Depository Trust Company of a number of Units constituting
the ownership of all Units of fractional undivided interest
in such Bonds and in the respective Interest
Accounts and Principal Accounts maintained under this
Indenture in the manner hereinafter provided, and has caused
such Units to be credited at The Depository Trust
Company to the account of the Depositor, and will, upon
receipt of confirmation of the effectiveness of the
registration of the aforementioned Units with the
Securities and Exchange Commission, cause such Units to be
transferred on the registration books of the respective
Trusts to such other names, and in such
denominations, as the Depositor may direct, and will deliver
certificates evidencing the same, upon request, as
hereinafter provided; and
Whereas, for those Units which at any time or from time to
time may be held in certificated form, the form of the
certificates of ownership in the respective Trusts
("Certificates") shall be substantially as follows:.c2.Form
of Certificates
Number         Units
     Certificate of Ownership Plan of
          Distribution:
     --Evidencing-- Monthly
          Quarterly
     An Undivided Interest    Semi-Annual
          Not Applicable
     --in the--     CUSIP ____
Nuveen Tax-Exempt Unit Trust,Series [the Series as indicated
inthe Trust Indenture and
Agreement]_________________________ Trust ___
This is to certify that
_______________________________________ is the owner and
registered holder of this Certificate evidencing the
ownership of ______ unit(s) of
undivided interest ("Units") in the above Trust (herein
called the "Trust") of the related Series of the Nuveen
Tax-Exempt Unit Trust created by the Trust Indenture
and Agreement pertaining to such Series (hereinafter called
the "Indenture"), between John Nuveen & Co. Incorporated
(hereinafter called the "Depositor") and The
Chase Manhattan Bank N.A. (hereinafter called the
"Trustee").  The Trust consists of:  (1) such of the Bonds
deposited in Trust and listed in the appropriate
Schedule attached to the Indenture and any other obligations
that may be deposited in the Trust in exchange or
substitution therefor by reason of replacement of
failed contracts or refunding of the obligations initially
deposited, in accordance with the Indenture, as may from
time to time continue to be held as part of the
Trust and (2) such cash amounts as from time to time may be
held in the Interest Account and the Principal Account
maintained under the Indenture in the manner
described below.
At any given time this Certificate shall represent a
fractional undivided interest in the Trust, the numerator of
which fraction shall be the number of full and
fractional Units set forth on the face hereof and the
denominator of which shall be the total number of Units of
undivided fractional interest of the Trust which are
outstanding at such time.
The Depositor hereby grants and conveys all of its rights,
title and interest in and to the Trust to the extent of the
fractional undivided interest represented
hereby to the registered holder of this Certificate subject
to and in pursuance of the Indenture, all the terms,
conditions and covenants of which are incorporated
herein as if fully set forth at length.
The registered holder of the Units represented by this
Certificate is entitled at any time upon tender of this
Certificate to the Trustee at the Trustee's Office in
the City of New York, and upon payment of any tax or other
governmental charges, to receive on the third business day
following the day on which such tender is made,
an amount in cash equal to the evaluation of the 
fractional undivided interest in the Trust evidenced by this
Certificate, upon the basis provided for in the
Indenture.  The right of redemption may be suspended and the
date of payment may be postponed for any period during which
the New York Stock Exchange is closed or
trading on that Exchange is restricted, for any period
during which an emergency exists so that disposal of the
obligations held in the Trust is not reasonably
practicable or it is not reasonably practicable fairly to
determine the value of such obligations, or for such other
periods as the Securities and Exchange
Commission may by order permit.
Interest received by the Trustee as part of the Trust
(including interest accrued and unpaid prior to the day of
deposit of any obligation in the Trust and that part
of the proceeds of the sale, liquidation, redemption or
maturity of any such obligation or from any insurance
thereon which represents accrued interest but not
accrued original issue discount, if any) shall be credited
by the Trustee to the Interest Account.  The fractional
undivided interest represented by this Certificate
in the balance in the Interest Account (after the deductions
referred to below) shall be computed as of the date of the
Indenture and paid on such date.  The next
computation shall be made as of the "First General Record
Date" as defined in the Indenture and thereafter in
accordance with the plan of distribution shown above. 
An amount in cash equal to said fractional
undivided interest in the Interest Account shall be
distributed on the fifteenth day of the month in which
each such computation is made, or within a reasonable period
of time thereafter, to or upon the order of the registered
holder of the Units represented by this
Certificate at the close of business on the first day of the
month in which such distribution is made.
All moneys (other than interest) received by the Trustee as
part of the Trust (including original issue discount and
amounts received from the sale, liquidation,
redemption or maturity of any obligations held in the Trust
or from any insurance thereon) shall be credited by the
Trustee to a separate Principal Account.  The
fractional undivided interest represented by this
Certificate in the cash balance in the Principal Account
(after the deductions referred to below) shall be computed
as of the semi-annual Record Dates as defined in the
Indenture in each year, commencing with the first such date
occurring subsequent to the date of the Indenture. 
An amount in cash equal to said undivided fractional
interest in the Principal Account shall be distributed on
the fifteenth day of the months in which the Record
Dates occur, or within a reasonable period of time
thereafter, to or upon the order of the registered holder of
this Certificate at the close of business on the first day 
of the month in which such distribution is made.  The 
Trustee shall not be required to make a distribution from 
the Principal Account unless the cash balance on deposit 
therein available for such distribution shall be sufficient 
to distribute at least 10 cents per Unit.
Distributions from the Interest and Principal Accounts shall
be made by mail at the post office address of the holder
hereof appearing in the registration books of
the Trustee or otherwise as directed by the holder.
From time to time deductions shall be made from the Interest
Account and Principal Account, as more fully set forth in
the Indenture, for redemptions, compensation
of the Trustee, reimbursement of certain expenses incurred
by or on behalf of the Trustee, certain legal expenses and
payment of or the establishment of a reserve
for, applicable taxes, if any.
Within a reasonable period of time after the end of each
calendar year the Trustee shall furnish to the registered
holder of this
Certificate a statement setting forth, among other things,
the amounts received and deductions therefrom and the
amounts distributed during the preceding year in
respect of interest on, and sales, redemptions or maturities
of, and proceeds from insurance on, obligations held in the
Trust.
This Certificate shall be
transferable by the registered holder hereof by presentation
and surrender of this Certificate at the corporate
trust office of the Trustee properly endorsed on the reverse
hereof or accompanied by a written instrument or instruments
of transfer in form satisfactory to the
Trustee and executed by the registered holder hereof or his
authorized attorney.  Certificates are interchangeable for
(i) one or more Certificates or (ii) a Book
Entry Position, in each case in an equal aggregate number of
Units of undivided interest in denominations of a single
Unit of undivided interest or any multiple and
fraction thereof, all in the manner provided in the
Indenture.
The holder hereof may be required to pay a charge of $2.00
per Certificate issued in connection with the transfer or
interchange of this
Certificate and any tax or other governmental charge that
may be imposed in connection with the transfer, interchange
or other surrender of this Certificate.
The holder of the Units represented by this Certificate, by
virtue of the acceptance of this Certificate, assents to and
shall be bound by the terms of the
Indenture, a copy of which is on file and available for
inspection at the corporate trust office of the Trustee, to
which reference is made for all the terms,
conditions and covenants thereof.
The Trustee may deem and treat the person in whose name this
Certificate is registered upon the books of the Trustee as
the owner of the Units represented by this
Certificate for all purposes and the Trustee shall not be
affected by any notice to the contrary.
The Trust shall terminate upon the maturity, redemption,
sale or other disposition of the last bond held therein,
provided, however, that in no event shall the Trust
continue beyond the date specified in the Indenture.  The
Indenture also provides that the Trust may be terminated at
any time by the written consent of One hundred
per cent (100%) of the Unitholders of the Trust and under
certain circumstances which include a decrease in the value
of the Trust to less than Twenty per cent (20%)
of the aggregate principal amount of bonds initially
deposited in the Trust or a redemption by the Depositor of
Units not theretofore sold in an amount aggregating
more than Sixty per cent (60%) of the initial number of
Units thereby reducing the net worth of the Trust to less
than Forty per cent (40%) of the aggregate
principal amount of bonds initially deposited in the Trust. 
Upon any termination the Trustee shall fully liquidate the
bonds then held, if any, and distribute pro
rata the funds then held in the Trust upon surrender of the
Units, all in the manner provided in the Indenture.  
Upon termination, the Trustee shall be under
no further obligation with respect to the
Trust, except to hold the funds in trust without interest
until distribution as aforesaid and shall have no duty upon
any such termination to communicate with the
holder hereof other than by mail at the address of such
holder appearing on the registration books of the Trustee.
This Certificate shall not become valid or binding for any
purpose until properly executed by the Trustee under the
Indenture.
In Witness Whereof, John Nuveen & Co. Incorporated has
caused this Certificate to be executed in facsimile by its
Chairman of the Board and The Chase Manhattan Bank, N.A.,
as Trustee, has caused this
Certificate to be executed manually or in facsimile in its
corporate name by an authorized officer.
Date:     John Nuveen & Co. Incorporated, Depositor
By   
Chairman of the Board
The Chase Manhattan Bank, N.A., Trustee
By   
Authorized Officer
Form of Assignment
For Value Received _________________________________ hereby
sells, assigns and transfers unto _________________________
the Units represented by the within
Certificate and does hereby irrevocably constitute and
appoint _________________________ attorney, to transfer the
Units represented by the within Certificate on the
books of the Trustee, with full power of substitution in the
premises.
Date:   
          
Statement Regarding Distributions
On the face of this Certificate it is indicated whether the
registered holder hereof has elected to receive
distributions from the Interest Account monthly,
quarterly or semi-annually.
This Certificate by its terms provides that (after the
initial computation and payment on the date of the
Indenture) distributions from the Interest Account shall be
computed as of the First General Record Date, and thereafter
in accordance with the plan of distribution chosen, and an
amount in cash equal to the share of the
Interest Account represented by this Certificate distributed
on the fifteenth day of each month in which such computation
is made, or within a reasonable period of
time thereafter, to or upon the order of the registered
holder of this Certificate at the close of business on the
first day of the month in which the distribution
is made.
All Unitholders of record on the First General Record Date,
regardless of the plan of distribution selected, will
receive the first distribution to be made and
thereafter distributions will be made monthly, quarterly or
semi-annually, depending upon the plan of distribution
chosen by the holder hereof.
If monthly distributions have been selected, the fractional
undivided interest represented by this Certificate in the
balance in the Interest Account, after the
first distribution and after the deductions referred to in
the Certificate, will be computed as of the first day of
each month of each year, commencing with the
first such day after the First General Record Date, and
subsequent to the date of this Certificate, and an amount in
cash as thus computed distributed to or upon the
order of the holder hereof at such date of computation
(which also is the Record Date) on or shortly after the
fifteenth day of each month.
If quarterly distributions have been selected, the
fractional undivided interest represented by this
Certificate in the balance in the Interest Account, after
the
first distribution and after the deductions referred to in
the Certificate, will be computed quarterly as of the
quarterly Record Dates in each year, commencing with
the first such day after the First General Record Date and
subsequent to the date of this Certificate, and an amount in
cash as thus computed distributed to or upon
the order of the holder hereof at such date of computation
(which also is the Record Date) on or shortly after the
fifteenth day of each month in which such
computation is made.
If semi-annual distributions have been selected, the
fractional undivided interest represented by this
Certificate in the balance in the Interest Account, after
the
first distribution and after the deductions referred to in
the Certificate will be computed semi-annually as of the
semi-annual Record Dates in each year, commencing
with the first such day after the First General Record Date
and subsequent to the date of this Certificate, and an
amount in cash as thus computed distributed to or
upon the order of the holder hereof at such date of
computation (which also is the Record Date) on or shortly
after the fifteenth day of each month in which such
computation is made.
The plan of distribution chosen by the registered holder
hereof may be changed by written notice to the Trustee 
requesting the change, accompanied by
this Certificate.  A
plan of distribution shall continue in effect until changed
as herein provided.  A change in a plan of distribution will
be effective as of the day following the
semi-annual Record Date if made by such Record Date.
In the event the amount on deposit in the Interest Account
is not sufficient for the payment of the amount of interest
to be distributed to Unitholders participating
in a distribution, the Trustee shall advance its own funds
and cause to be deposited in and credited to the Interest
Account such amounts as may be required to
permit payment of the distribution to be made and shall be
entitled to be reimbursed, without interest, out of interest
received by the Trust subsequent to the date
of such advance and subject to the condition that any such
reimbursement shall be made only under conditions which will
not reduce the funds in or available for the
Interest Account to an amount less than required for the
next ensuing distribution of interest.  Distributions to
Unitholders who are participating in one of the
optional plans for distribution of interest shall not be
affected because of advancements by the Trustee for the
purpose of equalizing distributions to Unitholders
participating in a different plan.
Now, Therefore, in consideration of the premises and of the
mutual agreements herein contained, the Depositor and the
Trustee agree as follows:
Article I
Definitions
     Section 1.01.  Whenever used in this Indenture the
following words and phrases, unless the context clearly
indicates otherwise, shall have the following
meanings:
     (1)  "Bonds" shall mean such of the Tax-exempt
Obligations, including, the delivery statements relating to
contracts (which may include "when-issued"
contracts"), if any, for the purchase of certain bonds and
certified or bank check or checks or letter of credit or
letters of credit sufficient in amount and
availability required for such purchase, deposited in
irrevocable trust and listed in the Schedules attached to
the Trust Agreement, and any obligation received in
exchange for an obligation originally so deposited pursuant
to the terms thereof such that without exception every
holder of the originally deposited obligation must
exchange such obligation at a date not determined by the
holder for a new obligation of the same maturity and bearing
the same interest rate as the originally
deposited obligation, and any obligation received in
exchange or substitution for such obligations pursuant to
Sections 3.08 or 3.14 hereof, as may from time to time
continue to be held as a part of the Trust Fund.
     (2)  "Book Entry Dealer" shall mean those dealers
including banks, trust companies and other investment
advisers for whose customers the Depositor executes and
confirms trades, and broker/dealers that clear trades in
Units through the Depositor, through whom purchasers of
Units will automatically be book entry Unitholders.
     (3)  "Book Entry Position" shall mean any position in
Units of a Trust which ownership is recorded on the books of
the Trustee which notation evidences
ownership of an undivided fractional Interest in a Trust in
book entry form.
     (4)  "Book Entry Position Confirmation" shall mean the
notice sent out by the Depositor to a purchaser of Units
through a Book Entry Dealer, or a Unitholder who
converts certificated Units to a Book Entry Position which
confirms such purchase or conversion.
     (5)  "Book Entry Unitholder" shall mean the registered
holder of any Book Entry Position as recorded on the books
of the Trustee, his legal representatives and
heirs and the successors of any corporation, partnership or
other legal entity which is a registered holder of any Book
Entry Position and as such shall be deemed a
beneficiary of the related Trust created by this Indenture
to the extent of his pro rata share thereof.
     (6)  "Business Day" shall mean any day other than a
Saturday, Sunday or, in the City of New York, a legal
holiday or a day on which banking institutions are
authorized by law to close.
     (7)  "Certificate" shall mean any one of the
certificates executed by the Trustee and the Depositor
evidencing ownership of an undivided fractional interest in
a Trust.
     (8)  "Certificated Unitholder" shall mean the
registered holder of any Certificate, his legal
representatives and heirs and the successors of any
corporation,
partnership or other legal entity which is a registered
holder of any Certificate and as such shall be deemed a
beneficiary of the related Trust created by this
Indenture to the extent of his pro rata share thereof.
     (9)  "Depositor" shall mean John Nuveen & Co.
Incorporated and its successors in interest, or any
successor depositor as hereinafter provided for.
     (10) "Eligible Book Entry Unitholder" shall have the
meaning ascribed to such term in Section 4.02 of this
Indenture.
     (11) "Indenture" shall mean this Standard Terms and
Conditions of Trust as originally executed or, if amended as
hereinafter provided, as so amended, together
with the Trust Indenture and Agreement creating a particular
series of the Fund.
     (12) "Insurance" shall mean the contract or contracts
or policy or policies of insurance guaranteeing the payment
when due of the principal of and interest on
the Bonds (except Bonds held pursuant and subject to this
Indenture which are insured by individual policies of
insurance issued by the Municipal Bond Insurance
Association ("MBIA") or the MBIA Insurance Corporation (the
"Corporation") which have been obtained by the issuers or
underwriters of such Bonds (the "Pre-Insured
Bonds")) held pursuant and subject to this Indenture,
together with the proceeds, if any, thereof payable to or
received by the Trustee for the benefit of each
Insured Trust in the Fund and the respective Unitholders
thereof.
     (13) "Insured Trust" shall mean any separate trust
created by this Indenture, each Bond contained in the
portfolio of which is either a Pre-Insured Bond or
guaranteed by insurance obtained by the Depositor from the
Insurer.
     (14) "Insurer" shall mean the MBIA Insurance
Corporation (the "Corporation"), its successors and assigns,
having its headquarters in Armonk, New York, and
issuing the contracts or policies of insurance protecting
the owners of the Bonds against nonpayment when due of the
principal thereof and interest thereon (except
for Pre-Insured Bonds).
     (15) "New Bonds" shall have the meaning ascribed to
such term in Section 3.14 of this Indenture.
     (16) "Prospectus" shall mean the prospectus relating to
the Trust Fund filed with the Securities and Exchange
Commission pursuant to Rule 497(b) under the
Securities Act of 1933, as amended, and dated the date of
the Trust Agreement.
     (17) "Special Bonds" shall have the meaning ascribed to
such term in Section 3.14 of this Standard Terms and
Conditions of Trust.
     (18) "Stripped Obligation" shall mean a certificate,
receipt or other evidence of ownership with respect to
either the principal amount of or an installment of
interest payable on a Tax-exempt Obligation.
     (19) "Tax-exempt Obligation" shall include
interest-bearing obligations, Zero Coupon Obligations and
Stripped Obligations, the interest income and/or accrued
original issue discount on which is not includible in the
determination of gross income under federal income tax law.
     (20) "Telephone Redemption Authorization Form" shall
mean any form approved by the Trustee for use by Book Entry
Unitholders redeeming 1,000 Units or less.
     (21) "Traditional Trust" shall mean any Trust which is
not an Insured Trust.
     (22) "Trust" or "Trusts" shall mean the separate trust
or trusts created by this Indenture, the Bonds constituting
the portfolios of which are listed in the
various separate Schedules attached to the Trust Agreement.
     (23) "Trust Agreement" shall mean the Trust Indenture
and Agreement for the particular series of the Fund into
which this Standard Terms and Conditions is
incorporated.
     (24) "Trustee" shall mean The Chase Manhattan Bank
(National Association), or any successor trustee as
hereinafter provided for.
     (25) "Trustee's Office" shall mean the office of the
Trustee specified in the Prospectus or any other office that
the Trustee may from time to time designate as
the principal office where its unit trust business shall be
conducted.
     (26) "Trust Fund" or "Fund" shall mean the collective
Trusts created by this Indenture, which shall consist of all
the Bonds held pursuant and subject to this
Indenture together with all undistributed interest received
or accrued thereon, and any undistributed cash realized from
the sale, redemption, liquidation, or
maturity thereof or the proceeds of insurance received in
respect thereof.  Such amounts as may be on deposit in the
Reserve Account hereinafter established shall be
excluded from the Trust Fund.
     (27) "Unit" in respect of any Trust shall mean the
fractional undivided interest in and ownership of the Trust
equal to that fraction of the respective Trust
such that 1 shall be the numerator and the number of Units
as set forth under the caption "Essential Information _
Number of Units" in the Prospectus for each Trust
shall be the denominator, said denominator of which shall be
decreased by the number of any such Units redeemed as
provided in Section 4.02.
     (28) "Unitholder" shall mean any Book Entry Unitholder
or any Certificated Unitholder.
     (29) "Zero Coupon Obligation" shall mean a bond which
does not provide for the payment of any current interest.
     (30) Words importing singular number shall include the
plural number in each case and vice versa, and words
importing person shall include corporations and
associations, as well as natural persons.
     (31) The words "herein", "hereby", "herewith",
"hereof", "hereinafter", "hereunder", "hereinabove",
"hereafter", "heretofore" and similar words or phrases of
reference and association shall refer to this Indenture in
its entirety.
Article IIDeposit of Bonds; Acceptance of
Trust; Form and Issuanceof Certificates; Insured Trust Bond
Insurance
     Section 2.01.   Deposit of Bonds;:  The Depositor,
concurrently with the execution and delivery hereof, has
deposited with the Trustee in trust the Bonds
listed in the Schedules attached to the Trust Agreement (or
delivery statements relating to contracts for the purchase
thereof) in bearer form or duly endorsed in
blank or accompanied by all necessary instruments of
assignment and transfer in proper form to be held, managed
and applied by the Trustee as herein provided.  If
the seller in any contract to buy any such Bonds fails to
perform for any reason beyond the control of the Depositor
and the Depositor does not obtain these Bonds
from any other source, the Depositor shall forthwith give
the Trustee the Failed Contract Notice as defined in Section
3.14 and may take the remedial action
specified in said Section 3.14.
     Section 2.02.   Acceptance of Trust;:  The Trustee
hereby accepts the trust herein created for the use and
benefit of the Unitholders in the Trusts, subject
to the terms and conditions of this Indenture.
     Section 2.03.   Issue of Certificates and
Establishment of Book Entry Positions;:  The Trustee hereby
acknowledges receipt of the deposit referred to in
Section 2.01, and simultaneously with the receipt of said
deposit, will register on the registration books of the
Trust, for each of the monthly, quarterly, and
semi-annual plans of distribution, the ownership by The
Depository Trust Company of all Units of each Trust, and
will cause such Units to be credited at The
Depository Trust Company to the account of the Depositor. 
The Trustee shall not cause such Units to be transferred on
the registration books of the Trust to a
holder other than the Depositor, and the Depositor shall not
sell, pledge, hypothecate or otherwise transfer such Units,
prior to the effectiveness of the
registration statement covering the Units filed with the
Securities and Exchange Commission under the Securities Act
of 1933, except that the Depositor may place the
Units as security for any letter of credit provided in
connection with the deposit of contracts described in
Section 2.01.
Upon the sale of Units to a purchaser, the Units will be
evidenced by a Book Entry Position unless such purchaser
expressly requests that the purchased Units be
evidenced in Certificate form.  Upon sale of the Units to a
purchaser who requests Units in certificated form, the
Trustee shall issue a Certificate or Certificates
in the name of the purchaser and note that such Unitholder
is a Certificated Unitholder on the books of the Trustee.
     Section 2.04.   Separate Trusts;:  The Trusts
created by this Indenture are separate and distinct trusts
for all purposes and the assets of one trust may
not be commingled with the assets of any other nor shall the
expenses of any trust be charged against the other.  The
Certificates and/or Book Entry Positions
representing the ownership of Units of undivided fractional
interest in one Trust shall not be exchangeable for
certificates or book entry positions representing
ownership of Units of undivided fractional interest in any
other Trust.
     Section 2.05.   Form of Certificates;:  Each
Certificate referred to in Section 2.03 is, and each
Certificate hereafter issued shall be, in substantially
the form hereinabove recited, numbered serially for
identification, in fully registered form, transferable only
on the books of the Trustee as herein provided,
executed either manually or in facsimile by an authorized
officer of the Trustee and in facsimile by the Chairman of
the Board, President or one of the Vice
Presidents of the Depositor and dated the date of execution
and delivery by the Trustee.  In case any authorized officer
of the Trustee or the Depositor who has
signed or whose facsimile signature has been placed upon any
Certificate shall have ceased to be such officer before any
such Certificate is issued, it may be issued
with the same effect as if he were such officer at the date
of issue.
     Section 2.06.   Insured Trust Bond Insurance;: 
Concurrently with the delivery to the Trustee of the Bonds
listed in the Schedules for Insured Trusts
attached to the Trust Agreement, the Insurer has delivered
to and deposited with the Trustee, a Municipal Bond
Insurance Policy or Policies (the "Insurance") to
protect each Bond and the Unitholders of the respective
Insured Trust in which such Bond is held against nonpayment
of principal and interest when due on any such
Bond or Bonds (except for Pre-Insured Bonds).
The Trustee shall take all action deemed necessary or
advisable in connection with the Insurance to continue the
Insurance in full force and effect, all in such
manner as in its sole discretion shall appear to result in
the most protection and least expense to each Insured Trust.
At all times during the existence of the Insured Trust, the
Insurance policies shall provide for payment by the Insurer
to the Trustee of any amounts of principal
and interest due, but not paid, by the issuer of an insured
Bond.  The Trustee shall promptly notify the Insurer of any
nonpayment or threatened nonpayment of
principal or interest and the Insurer shall in accordance
with the terms of the policies make payment to the Trustee
of all amounts of principal and interest at that
time due, but not paid.
Upon the making of any payment referred to in the preceding
paragraphs, the Insurer shall succeed to the rights of the
Trustee under the Bond or Bonds involved to
the extent of the payments made.  Concurrently with the
payment of any amounts by the Insurer occasioned by the
nonpayment of principal and/or interest by the
issuer, the Trustee shall execute and deliver to the Insurer
any receipt, instrument or document required to evidence the
right of the Insurer to payment of
principal and/or interest under the Bond or Bonds involved
to the extent of the payments made by the Insurer to the
Trustee.
The Trustee shall promptly notify the Corporation of any
nonpayment of principal of or interest on any Bonds and if
the Corporation should fail to make payment to
the Trustee within 30 days after receipt of such notice, the
Trustee shall take all action against the Corporation and/or
the issuer deemed necessary to collect all
amounts of principal and interest at that time due, but not
collected.
Article III Administration of Fund
     Section 3.01.   Initial Cost;:  The expenses
incurred in establishing a Trust, including the cost of the
initial preparation and typesetting of the
registration statement, prospectuses (including preliminary
prospectuses), the indenture, and other documents relating
to a Trust, printing of Certificates,
Securities and Exchange Commission and state blue sky
registration fees, the costs of the initial valuation of the
portfolio and audit of a Trust, the initial fees
and expenses of the Trustee, and legal and other
out-of-pocket expenses related thereto, but not including
the expenses incurred in the printing of preliminary
prospectuses and final prospectuses, expenses incurred in
preparation and printing of brochures and other advertising
materials and any other selling expenses shall
be borne by the Trust, provided, however, the Trust shall
not bear such expenses in excess of the amount shown in the
Statements of Condition included in the
Prospectus for the Trust dated the date specified in the
Trust Agreement, and any such excess shall be borne by the
Depositor.  To the extent the funds in the
Interest and Principal Accounts of the Trust shall be
insufficient to pay the expenses borne by the Trust
specified in this Section 3.01, the Trustee shall advance
out of its own funds and cause to be deposited and credited
to the Interest Account such amount as may be required to
permit payment of such expenses.  The Trustee
shall be reimbursed for such advance in the manner provided
in Section 3.05, and the provisions of Section 5.04 with
respect to the reimbursement of disbursements
for Trust expenses, including, without limitation, the lien
in favor of the Trustee therefor, shall apply to the payment
of expenses made pursuant to this Section. 
For purposes of calculation of distributions under Section
3.05 and the addition provided in clause (d) of Section
4.01, the expenses borne by the Trust pursuant to
this Section shall be deemed to have been paid on the date
specified in the Trust Agreement and to accrue at a daily
rate over the time period specified for their
amortization in the Prospectus, provided, however, that
nothing herein shall be deemed to prevent, and the Trustee
shall be entitled to, full reimbursement for any
advances made pursuant to this Section no later than the
termination of the Trust.
     Section 3.02.   Interest Account;:  The Trustee
shall collect the interest on the Bonds in each Trust as
such becomes payable (including all interest
accrued but unpaid prior to the date of deposit of the Bonds
in trust and including that part of the proceeds of the
sale, liquidation, redemption or maturity of any
Bonds or insurance thereon which represents accrued interest
thereon but not accrued original issue discount, if any) and
credit such interest to a separate account
for each Trust to be known as the "Interest Account".  For
purposes of this Indenture, interest to be credited to the
Interest Account shall not be deemed to include
original issue discount accrued or paid or any amounts
accrued or paid in respect of Stripped Obligations.
     Section 3.03.   Principal Account;:  The Bonds in
each Trust and all moneys (including moneys delivered to the
Trustee for the purchase of bonds pursuant to
contracts, which moneys are no longer required for such
purchase and all amounts received with respect to Zero
Coupon Obligations and Stripped Obligations) other
than amounts credited to the Interest Account, received by
the Trustee in respect of the Bonds in each Trust, including
insurance thereon, shall be credited to a
separate account for each Trust to be known as the
"Principal Account."  Moneys which are required to cover
contracts to purchase bonds are hereby declared to be
held in trust by the Trustee for such purchase until the
Depositor shall have notified the Trustee that such
contracts, and if applicable, any contracts for New
Bonds as permitted by Section 3.14, have failed and shall
have directed the Trustee to distribute such moneys as
provided in Section 3.05.  For this purpose if the
Depositor shall deposit New Bonds in a principal amount less
than the principal amount of Special Bonds, such event shall
be treated as a failure as to the principal
amount of Special Bonds not replaced by an equal principal
amount of New Bonds.
     Section 3.04.   Reserve Account;:  From time to
time the Trustee shall withdraw from the cash on deposit in
the Interest Account or the Principal Account of
the appropriate Trust such amounts as it, in its sole
discretion, shall deem requisite to establish a reserve for
any applicable taxes or other governmental charges
that may be payable out of such Trust.  Such amounts so
withdrawn shall be credited to a separate account for each
Trust which shall be known as the "Reserve
Account."  The Trustee shall not be required to distribute
to the Unitholders any of the amounts in the Reserve
Account; provided, however, that if it shall, in its
sole discretion, determine that such amounts are no longer
necessary for payment of any applicable taxes or other
governmental charges, then it shall promptly
deposit such amounts in the appropriate account.
     Section 3.05.   Distributions;:  The Trustee, as of
the Settlement Date set forth in the Prospectus, shall
advance from its own funds and shall pay to the
Depositor, as the sole Unitholder of record on the date of
the Trust Agreement, the amount of interest accrued on the
Bonds as of the date of the Trust Agreement. 
The Trustee shall be entitled to reimbursement, without
interest, for such advancement from interest received by the
respective Trusts before any further
distributions shall be made from the Interest Account to
Unitholders of the respective Trusts.  The second
distribution of funds from the Interest Account of the
respective Trusts shall be in the amount as set forth for
each Trust in the Prospectus and shall be
made on the date as indicated in the Prospectus (sometimes
referred to herein as the First General Record Date) to or upon
the order of all Unitholders of record of the respective
Trusts as of the dates as indicated in the
Prospectus.  For all subsequent semi-annual distributions to
Unitholders of any Trust, the "Record Date" is hereby fixed
to be those dates set forth in the
Prospectus for each Trust.
As of the first day of each month of each year commencing
with the first Record Date for each Trust indicated in the
Prospectus, the Trustee shall with respect to
each Trust:
     (a)  deduct from the Interest Account or, to the extent
funds are not available in such Account, from the Principal
Account and pay to itself individually the
amounts that it is at the time entitled to receive pursuant
to Section 5.04;
     (b)  deduct from the Interest Account, or, to the
extent funds are not available in such Account, from the
Principal Account and pay to the Depositor the amount
that it is at the time entitled to receive pursuant to
Section 4.05; and
     (c)  deduct from the Interest Account, or, to the
extent funds are not available in such Account, from the
Principal Account and pay to bond counsel, as
hereinafter provided for, an amount equal to unpaid fees and
expenses, if any, of such bond counsel as certified to by
the Depositor.
On or shortly after the 15th day of the months in which a
semi-annual distribution is to be made as set forth in the
Prospectus (the "Semi-Annual Distribution Date")
commencing on the date for each Trust indicated in the
Prospectus, the Trustee shall, with respect to any Trust,
distribute by mail to or upon the order of each
Unitholder of record of such trust as of the close of
business on the preceding Record Date at the post office
address appearing on the registration books of the
Trustee such Unitholder's pro rata share of the balance of
the Interest Account of such Trust calculated as of the
Record Date for such semi-annual payment on the
basis of one-half of the estimated annual interest income to
such Trust for the ensuing twelve months, after deduction of
the estimated costs and expenses of such
Trust to be incurred during the twelve month period for
which the interest income has been estimated provided,
however, that the first such semi-annual distribution
may be a partial distribution reflecting the number of
months since the preceding distribution.
In the event the amount on deposit in the Interest Account
of any Trust on a Semi-Annual Distribution Date is not
sufficient for the payment of the amount of
interest to be distributed on the basis of the aforesaid
computation, the Trustee shall advance out of its own funds
and cause to be deposited in and credited to
such Interest Account such amount as may be required to
permit payment of the semi-annual interest distribution to
be made on such Semi-Annual Distribution Date and
shall be entitled to be reimbursed, without interest, out of
interest received by such Trust subsequent to the date of
such advance and subject to the condition that
any such reimbursement shall be made only under conditions
which will not reduce the funds in or available for the
Interest Account to an amount less than required
for the next ensuing distribution of interest.  The
Trustee's fee takes into account the costs attributable to
the outlay of capital needed to make such advances.
In lieu of the semi-annual distributions of interest
provided above, a Unitholder of any Trust may elect to
receive payments from the Interest Account of such Trust
monthly or quarterly.  The second distribution hereinbefore
provided, however, shall be made to or upon the order of all
holders of Units of such Trust who have
chosen to receive subsequent distributions on a different
basis.
Unitholders of any Trust desiring to receive monthly or
quarterly distributions and who purchase their Units prior
to the Record Date for the second distribution may
elect at the time of purchase to receive distributions on a
monthly or quarterly basis by notice to the Trustee. 
Unitholders must furnish written notice to the
Trustee indicating their desire to receive monthly or
quarterly distributions.  The Trustee, within five business
days of receiving such notice, shall issue to the
Book Entry Unitholder a new Book Entry Position Confirmation
indicating such Unitholder's preferred distribution plan. 
Such notice shall be effective with respect
to subsequent distributions until changed by further notice
to the Trustee.  Those wishing to change their plan of
distribution must do so by sending written notice
at any time to the Trustee; Certificated Unitholders must
also send to the Trustee the Certificate to which the
requested change relates.  Changes may be made only
as herein provided and will become effective as of the
following May 2 if received by May 1 of such year, or as of
November 2 if received by November 1 of such year
and such distributions will continue until further notice.
For monthly distributions the share of the balance in the
Interest Account to be distributed to or upon the order of a
Unitholder of any Trust who has elected to
receive monthly distributions, after the second
distribution, shall be computed as of the first day of each
month commencing with the first such day subsequent to
the date of the Certificate or to the date of the recording
of the Book Entry Position on the books of the Trustee and
distribution made as provided herein on or
shortly after the 15th day of the month of computation to
the Unitholder of record on such date of computation.  Such
computation shall be made on the basis of
one-twelfth of the estimated annual interest income to the
related Trust for the ensuing twelve months for the account
of Unitholders of any Trust who have elected
to receive monthly distributions, after deduction of the
estimated costs and expenses to be incurred on behalf of
such Unitholders during the twelve month period for
which such interest income has been estimated.
For quarterly distributions the share of the balance in the
Interest Account to be distributed to or upon the order of a
Unitholder of any Trust who has elected to
receive quarterly distributions, after the second
distribution, shall be computed as of the first day of each
month as set forth in the Prospectus, commencing with
the first such day subsequent to the date of the Certificate
or to the date of the recording of the Book Entry Position
on the books of the Trustee and distribution
made as provided herein on or shortly after the 15th day of
the month of computation to the Unitholder of record on such
date of computation.  Such computation shall
be made on the basis of one-fourth of the estimated annual
interest income to the related Trust for the ensuing twelve
months for the account of Unitholders of any
Trust who have elected to receive quarterly distributions,
after deduction of the estimated costs and expenses to be
incurred on behalf of such Unitholders during
the twelve month period for which such interest income has
been estimated provided, however, that the first such
quarterly distribution may be a partial distribution
reflecting the number of months since the preceding
distribution.
To the extent practicable, the Trustee shall allocate the
expenses of each Trust among Units of such Trust, giving
effect within any Trust to differences in
administrative and operational cost among those who have
chosen to receive distributions monthly, quarterly or
semi-annually.
If the Trustee determines that an event has occurred as a
result of which there has resulted an excessive distribution
from the Interest Account, it shall reduce
subsequent distributions so as to reconcile, as promptly as
practicable, the aggregate net income and distributions from
such Account.
In the event the amount on deposit in the Interest Account
of a Trust for a monthly or quarterly distribution is not
sufficient for the payment of the amount of
interest to be distributed to Unitholders participating in
such distributions on the basis of the aforesaid
computations, the Trustee shall advance its own funds and
cause to be deposited in and credited to such Interest
Account such amounts as may be required to permit payment of
the monthly or quarterly interest distribution to
be made as aforesaid and shall be entitled to be reimbursed,
without interest, out of interest received by such Trust
subsequent to the date of such advance and
subject to the condition that any such reimbursement shall
be made only under conditions which will not reduce the
funds in or available for such Interest Account to
an amount less than required for the next ensuing
distribution of interest.  The Trustee's fee takes into
account the costs attributable to the outlay of capital
needed to make such advances.  Distributions to Unitholders
of any Trust who are participating in one of the optional
plans for distribution of interest shall not be
affected because of advancements by the Trustee for the
purpose of equalizing distributions to Unitholders of any
Trust participating in a different plan.
Distributions of amounts represented by the cash balance in
the Principal Account for each Trust shall be computed as of
the dates as indicated in the Prospectus. 
On the fifteenth day of each month, in which such
computation is made, or within a reasonable period of time
thereafter, the Trustee shall distribute by mail to or
upon the order of each Unitholder of record at the close of
business on the date of computation (the Record Date) at his
post office address such holder's pro rata
share of the cash balance of such Principal Account as thus
computed.  The Trustee shall not be required to make a
distribution from such Principal Account unless
the cash balance on deposit therein available for
distribution shall be sufficient to distribute at least 10
cents per Unit.
Notwithstanding the foregoing, if the Depositor fails to
replace any Special Bond (as defined in Section 3.14) in a
Trust by delivering an equal principal amount of
New Bonds to the Trustee prior to the expiration of the
Purchase Period as defined in Section 3.14, the Trustee
shall distribute to all Unitholders of Units in the
respective Trust the entire amount of cash held by the
Trustee in respect of such Special Bonds which have not been
so replaced at the next monthly distribution date
which is more than thirty days after the expiration of the
Purchase Period or at such earlier time as the Trustee in
its sole discretion deems to be in the best
interest of the Unitholders.
The Trustee may, in its discretion, adjust the amount of
subsequent distributions from the Trust to take account of
any difference in interest accrued on the New
Bond at the time of its deposit and the interest which would
have accrued on the Special Bond as of such date.
The amounts to be so distributed to each Unitholder of a
Trust shall be that pro rata share of the cash balance of
the Interest and Principal Accounts of such Trust,
computed as set forth above, as shall be represented by the
Units evidenced by the outstanding Certificate or
Certificates registered in the name of such Unitholders
and/or Book Entry Positions recorded in the names of such
Unitholders on the books of the Trustee.
In the computation of each such share, fractions of less
than one cent shall be omitted.  After any such distribution
provided for above, any cash balance remaining
in the Interest Account or the Principal Account of a Trust
shall be held in the same manner as other amounts
subsequently deposited in each of such Accounts,
respectively.
For the purpose of distribution as herein provided, the
holders of record on the registration books of the Trustee
at the close of business on each Record Date shall
be conclusively entitled to such distribution, and no
liability shall attach to the Trustee by reason of payment
to or upon the order of any such registered
Unitholder of record.  Nothing herein shall be construed to
prevent the payment of amounts from the Interest Account and
the Principal Account of a Trust to
individual Unitholders by means of one check, draft or other
proper instrument, provided that the appropriate statement
of such distribution shall be furnished
therewith as provided in Section 3.06 hereof (unless waived
as set forth in said Section 3.06).
     Section 3.06.   Distribution Statements;:  With
each distribution from the Interest or Principal Accounts of
a Trust the Trustee shall set forth, either in
the instrument by means of which payment of such
distribution is made or in an accompanying statement, the
amount being distributed from each such account expressed
as a dollar amount per Unit of such Trust except that such
information need not be furnished to a Unitholder who has
waived receipt thereof in writing.;  In the
event that the issuer or insurer of any of the Bonds in a
Trust shall fail to make payment when due of any interest or
principal and such failure results in a change
in the amount which would otherwise be distributed as a
monthly distribution, the Trustee shall, with the first
distribution relating to such Trust following such
failure, set forth in an accompanying statement (a) the name
of the issuer and the Bond, (b) the amount of the reduction
in the distribution per unit resulting from
such failure, (c) the percentage of the aggregate principal
amount of Bonds which such Bond represents and (d) to the
extent then determined, information regarding
any disposition or legal action with respect to such Bond.
Within a reasonable period of time after the last business
day of each calendar year, the Trustee shall furnish to each
person who at any time during such calendar
year was a Unitholder of a Trust a statement setting forth,
with respect to such calendar year and with respect to such
Trust:
     (A)  as to the Interest Account:
     (1)  the amount of interest received on the Bonds,
     (2)  the amounts paid for purchases of New Bonds
pursuant to Section 3.14 and for redemptions pursuant to
Section 4.02,
     (3)  the deductions for applicable taxes and fees and
expenses of the Trustee and bond counsel, and
     (4)  the balance remaining after such distributions and
deductions, expressed both as a total dollar amount and as a
dollar amount per Unit outstanding on the
last business day of such calendar year;
     (B)  as to the Principal Account:
     (1)  the dates of the sale, maturity, liquidation or
redemption of any of the Bonds and the net proceeds received
therefrom excluding any portion thereof
credited to the Interest Account,
     (2)  the amounts received with respect to Zero Coupon
Obligations and Stripped Obligations which, based on the
evaluation thereof on the Date of Deposit,
constitute tax-exempt original issue discount to a
Unitholder who purchased his Units on the Day of Deposit,
     (3)  the amount paid for purchases of New Bonds
pursuant to Section 3.14 and for redemptions pursuant to
Section 4.02,
     (4)  the deductions for payment of applicable taxes and
fees and expenses of the Trustee and bond counsel, and
     (5)  the balance remaining after such distributions and
deductions, expressed both as a total dollar amount and as a
dollar amount per Unit outstanding on the
last business day of such calendar year; and
     (C)  the following information:
     (1)  a list of the Bonds as of the last business day of
such calendar year,
     (2)  the number of Units outstanding on the last
business day of such calendar year,
     (3)  the Unit Value based on the last evaluation of
such Trust made during such calendar year,
     (4)  the amounts actually distributed during such
calendar year from the Interest and Principal Accounts,
separately stated, expressed both as total dollar
amounts and as dollar amounts per Unit outstanding on the
record dates for such distributions, and
     (5)  the amount of original issue discount earned on
portfolio Bonds, based on the valuation of such Bonds on the
Date of Deposit.
     Section 3.07.   Sale of Bonds;:  If necessary, in
order to maintain the sound investment character of a Trust,
the Depositor may direct the Trustee to sell
or liquidate Bonds in such Trust at such price and time and
in such manner as shall be determined by the Depositor,
provided that the Depositor has determined that
any one or more of the ;  following conditions exist:
     (a)  that there has been a default on such Bonds in the
payment of principal or interest, or both, when due and
payable;
     (b)  that any action or proceeding has been instituted
in law or equity seeking to restrain or enjoin the payment
of principal or interest on any such Bonds,
attacking the constitutionality of any enabling legislation
or alleging and seeking to have judicially determined the
illegality of the issuing body or the
constitution of its governing body or officers, the
illegality, irregularity or omission of any necessary acts
or proceedings preliminary to the issuance of such
Bonds, or seeking to restrain or enjoin the performance by
the officers or employees of any such issuing body of any
improper or illegal act in connection with the
administration of funds necessary for debt service on such
Bonds or otherwise; or that there exists any other legal
question or impediment affecting such Bonds or
the payment of debt service on the same;
     (c)  that there has occurred any breach of covenant or
warranty in any resolution, ordinance, trust indenture or
other document, which would adversely affect
either immediately or contingently the payment of debt
service on such Bonds, or their general credit standing, or
otherwise impair the sound investment character of
such Bonds;
     (d)  that there has been a default in the payment of
principal of or interest on any other outstanding
obligations of an issuer of such Bonds;
     (e)  that in the case of revenue Bonds, the revenues
and income of the facility or project or other special funds
expressly charged and pledged for debt service
on any such Bonds shall fall substantially below the
estimated revenues or income calculated by the engineers or
other proper officials charged with the acquisition,
construction or operation of such facility or project, so
that, in the opinion of the Depositor, the retention of such
Bonds would be detrimental to the sound
investment character of such Trust and to the interest of
the Unitholders thereof;
     (f)  that the price of any such Bonds has declined to
such an extent, or such other market or credit factor
exists, so that in the opinion of the Depositor the
retention of such Bonds would be detrimental to such Trust
and to the interest of the Unitholders thereof;
     (g)  that such Bonds are the subject of an advanced
refunding.  For the purposes of this Section 3.07(g), "an
advanced refunding" shall mean when refunding
bonds are issued and the proceeds thereof are deposited in
irrevocable trust to retire the Bonds on or before their
redemption date; or
     (h)  that as of any Record Date any of the Bonds are
scheduled to be redeemed and paid prior to the next
succeeding Monthly Distribution Date; provided,
however, that as the result of such redemption the Trustee
will receive funds in an amount sufficient to enable the
Trustee to include in the distribution from the
Principal Account on such next succeeding Monthly
Distribution Date at least $.50 per Unit.
Upon receipt of such direction from the Depositor, upon
which the Trustee shall rely, the Trustee shall proceed to
sell or liquidate the specified Bonds in
accordance with such direction; provided, however, that the
Trustee shall not sell or liquidate any Bonds upon receipt
of a direction from the Depositor that it has
determined that the conditions in subdivision (h) above
exist, unless the Trustee shall receive on account of such
sale or liquidation the full principal amount of
such Bonds, plus the premium, if any, and the interest
accrued and to accrue thereon to the date of the redemption
of such Bonds.  The Trustee shall not be liable or
responsible in any way for depreciation or loss incurred by
reason of any sale made pursuant to any such direction or by
reason of the failure of the Depositor to
give any such direction, and in the absence of such
direction the Trustee shall have no duty to sell or
liquidate any Bonds under this Section 3.07 except to the
extent otherwise required by Section 3.10 of this Indenture.
     Section 3.08.   Refunding Bonds;:  In the event
that an offer shall be made by an obligor of any of the
Bonds in a Trust to issue new obligations in
exchange and substitution for any issue of Bonds pursuant to
a plan for the refunding or refinancing of such Bonds, the
Depositor shall instruct the Trustee in
writing to reject such offer and either to hold or sell such
Bonds, except that if (1) the issuer is in default with
respect to such Bonds or (2) in the opinion of
the Depositor, given in writing to the Trustee, the issuer
will probably default with respect to such Bonds in the
reasonably foreseeable future, the Depositor shall
instruct the Trustee in writing to accept or reject such
offer or take any other action with respect thereto as the
Depositor may deem proper.  Any obligation so
received in exchange shall either be sold as provided in
Section 3.07 or deposited hereunder and shall be subject to
the terms and conditions of this Indenture to
the same extent as the Bonds originally deposited hereunder. 
Within five days after such deposit, notice of such exchange
and deposit shall be given by the Trustee
to each Unitholder of such Trust, including an
identification of the Bonds eliminated and the bonds
substituted therefor.
     Section 3.09.   Bond Counsel;:  The Depositor may
employ from time to time as it may deem necessary a firm of
municipal bond attorneys for any legal
services that may be required in connection with the
disposition of underlying bonds pursuant to Section 3.07 or
the substitution of any securities for underlying
bonds as the result of any refunding permitted under Section
3.08.  The fees and expenses of such bond counsel shall be
paid by the Trustee from the Interest and
Principal Accounts of the applicable Trust as provided for
in Section 3.05(c) hereof.
     Section 3.10.   Notice and Sale by Trustee;:  If at
any time the principal of or interest on any of the Bonds
shall be in default and not paid or provision
for payment thereof shall not have been duly made, either
pursuant to any Insurance thereon or otherwise, the Trustee
shall notify the Depositor thereof.  If within
thirty days after such notification the Depositor has not
given any instruction to sell or to hold or has not taken
any other action in connection with such Bonds,
the Trustee shall sell such Bonds forthwith, and the Trustee
shall not be liable or responsible in any way for
depreciation or loss incurred by reason of such sale.
     Section 3.11.   Trustee Not to Amortize;:  Nothing
in this Indenture, or otherwise, shall be construed to
require the Trustee to make any adjustments
between the Interest and Principal Accounts of any Trust by
reason of any premium or discount in respect of any of the
Bonds.
     Section 3.12.   Liability of Depositor;:  The
Depositor shall be under no liability to the Unitholders for
any action taken or for refraining from the
taking of any action in good faith pursuant to this
Indenture or for errors in judgment, but shall be liable
only for its own negligence, lack of good faith or
willful misconduct. The Depositor may rely in good faith on
any paper, order, notice, list, affidavit, receipt, opinion,
endorsement, assignment, draft or any other
document of any kind prima facie properly executed and
submitted to it by the Trustee, bond counsel, or any other
persons pursuant to this Indenture and in
furtherance of its duties.
     Section 3.13.   Notice to Depositor;:  In the event
that the Trustee shall have been notified at any time of any
action to be taken or proposed to be taken
by holders of the Bonds (including but not limited to the
making of any demand, direction, request, giving of any
notice, consent or waiver or the voting with
respect to any amendment or supplement to any indenture,
resolution, agreement or other instrument under or pursuant
to which the Bonds have been issued) the Trustee
shall promptly notify the Depositor and shall thereupon take
such action or refrain from taking any action as the
Depositor shall in writing direct; provided,
however, that if the Depositor shall not within five
business days of the giving of such notice to the Depositor
direct the Trustee to take or refrain from taking
any action, the Trustee shall take such action as it, in its
sole discretion, shall deem advisable.  Neither the
Depositor nor the Trustee shall be liable to any
person for any action or failure to take action with respect
to this Section 3.13.
     Section 3.14.   Limited Replacement of Special
Bonds;:  If any contract in respect of Bonds in a Trust
other than a contract to purchase New Bonds (as
defined below), including those purchased on a when, as and
if issued basis, shall have failed due to any occurrence,
act or event beyond the control of the
Depositor or the Trustee (such failed Bonds being herein
called the "Special Bonds"), the Depositor shall notify the
Trustee (such notice being herein called the
"Failed Contract Notice") of its inability to deliver the
Special Bonds to the Trustee promptly after it is notified
that the Special Bonds will not be delivered to
it by the seller thereof.  The Depositor shall have until
the earlier of twenty days after giving the Failed Contract
Notice or ninety days after the date of the
Trust Agreement (such twenty-day or ninety-day period being
herein called the "Purchase Period") to deliver to the
Trustee an obligation to be held as Bonds
hereunder (herein called the "New Bonds") as part of such
Trust in replacement of an equal principal amount of the
Special Bonds, subject to the satisfaction of all
of the following conditions in the case of any such new
Bonds:
     (a)  The New Bonds (i) shall be tax-exempt obligations
issued by states, territories or their political
subdivisions, (ii) shall have a fixed maturity date
(whether or not entitled to the benefits of any sinking
redemption, purchase or similar fund) not exceeding the date
of maturity of the Special Bonds they replace
and not less than approximately 1 year in the case of a
Short Term Trust, approximately 3 years in the case of a
Short Intermediate Trust, approximately 5 years in
the case of an Intermediate Trust or State Intermediate
Trust approximately 11 years in the case of a Long
Intermediate Trust and approximately 15 years in the case
of any other Trust, in each case after the date of purchase,
(iii) shall be acquired by the Trust at a cost ("Acquisition
Cost") equal to the "Trustee's
Determination of Offering Price" of the respective Trust
indicated in the "Schedule of Investments" set forth in the
Prospectus dated the Date of Deposit and
relating to the Series of the Nuveen Tax-Exempt Unit Trust
as indicated in the Trust Agreement, attributable to the
principal amount of Special Bonds they replace,
(iv) must have a current return based on their Acquisition
Cost at least equal to the current return as of the Date of
Deposit of the Special Bonds they replace, (v)
must have a yield to maturity based on their Acquisition
Cost at least equal to the yield to maturity as of the Date
of Deposit of the Special Bonds they replace,
(vi) shall be payable as to principal and interest, if any,
in United States currency, (vii) shall not be when, as and
if issued Bonds, and (viii) with respect to a
State Trust, shall have benefit of exemption from state
taxation to an equal or greater extent than the Special
Bonds they replace.
     (b)  Each New Bond shall be rated at least "A" or
better by Standard & Poor's Ratings Group ("Standard &
Poor's") or "A" or better by Moody's Investors Service,
Inc. ("Moody's").
     (c)  The principal amount of the New Bonds (exclusive
of accrued interest) shall not exceed the principal amount
of the Special Bonds.
     (d)  In the case of Insured Trusts, each New Bond shall
be a Pre-Insured Bond or shall be acceptable to the Insurer
to be insured under policies of insurance
identical in form and substance to the Insurance included
and will be so included upon acquisition by the Trust.
     (e)  The Depositor shall furnish a notice to the
Trustee (which may be part of the Failed Contract Notice) in
respect of the New Bond purchased or to be
purchased that shall (i) identify the New Bonds, (ii) state
that the contract to purchase, if any, entered into by the
Depositor is satisfactory in form and
substance, and (iii) state that the foregoing conditions of
clauses (a) through (d) have been satisfied with respect to
the New Bonds.
Upon satisfaction of the foregoing conditions with respect
to any New Bonds, the Depositor shall pay the purchase price
for the New Bonds from its own resources or
if and to the extent that the Trustee has credited any
moneys and/or letters of credit attributable to the Special
Bonds to the Principal Account of such Trust, the
Trustee shall pay the purchase price of the New Bonds upon
directions from the Depositor from the moneys and/or letters
of credit so credited.  If the Depositor has
paid the purchase price and, in addition, the Trustee has
credited moneys of the Depositor to the Principal Account of
such Trust, the Trustee shall forthwith return
to the Depositor the portion of such moneys that is not
properly distributable to Unitholders pursuant to Section
3.05.
Whenever any New Bond is acquired by the Depositor pursuant
to the provisions of this Section 3.14, the Trustee shall,
within five days after the delivery thereof to
the Trustee mail to all Unitholders of the respective Trust
notices of such acquisition, including an identification of
the Special Bonds and the New Bonds acquired.

The Trustee shall not be liable or responsible in any way
for depreciation or loss incurred by reason of any purchase
of Special Bonds or New Bonds made by the
Depositor and in the absence of a purchase by the Depositor
the Trustee shall have no duty to purchase any New Bonds
under this Indenture.  The Depositor shall not
be liable for any failure to purchase any New Bonds or for
errors of judgment in respect of this Section 3.14;
provided, however, that these provisions shall not
protect the Depositor against any liability to which it
would otherwise be subject by reason of willful misfeasance,
bad faith or gross negligence in the performance
of its duties or by reason of its reckless disregard of its
obligations and duties hereunder.
Notwithstanding anything to the contrary in this Section
3.14, no deposit of New Bonds will be made without an
opinion of counsel that such substitution will not
adversely affect the federal income tax status of the Trust,
if such New Bonds when added to all previously purchased New
Bonds in the Trust exceeds 15% of the
principal amount of Bonds initially deposited in the Trust.
Article IV Evaluation, Redemption, Purchase,
Transfer orInterchange of Units and Replacement of
Certificates
     Section 4.01.   Evaluation;:  The Trustee shall
make an evaluation of each Trust as of that time set forth
in the Prospectus (the "Evaluation Time"), (i) on
the last business day of each of the months of June and
December, (ii) on the day on which any Unit of a respective
Trust is tendered for redemption, and (iii) on
any other day desired by the Trustee or requested by the
Depositor.  Such evaluations shall take into account and
itemize separately, (1) the cash on hand in the
respective Trust (other than cash declared held in trust to
cover contracts to purchase bonds) or moneys in the process
of being collected from matured interest
coupons or bonds matured or called for redemption prior to
maturity, (2) the value of each issue of the Bonds in the
Trust, (3) interest accrued thereon not subject
to collection and distribution and (4) amounts representing
organizational expenses paid less accrued organizational
expenses of a Trust.  In making the evaluations
the Trustee may determine the value of each issue of the
Bonds in the Trust by the following methods or any
combination thereof which it deems appropriate:  (i) on
the basis of current bid prices of such Bonds as obtained
from investment dealers or brokers (including the Depositor)
who customarily deal in bonds comparable to
those held by the Trust, or (ii) if bid prices are not
available for any of such Bonds, on the basis of bid prices
for comparable bonds, or (iii) by causing the
value of the Bonds in the Trust to be determined by others
engaged in the practice of evaluating, quoting or appraising
bonds.  For each such evaluation there shall
be deducted from the sum of the above (i) amounts
representing any applicable taxes or governmental charges
payable out of the Trust and for which no deductions
shall have previously been made for the purpose of addition
to the Reserve Account of such Trust, (ii) amounts
representing accrued expenses of the Trust including
but not limited to unpaid fees and expenses of the Trustee,
the Depositor and bond counsel, in each case as reported by
the Trustee to the Depositor on or prior to
the date of evaluation, and (iii) cash held for distribution
to Unitholders of such Trust of record, and required for
redemption of Units tendered, as of a date
prior to the evaluation then being made.  The value of the
pro rata share of each Unit of such Trust determined on the
basis of any such evaluation shall be referred
to herein as the "Unit Value."
The Depositor shall make an evaluation of each Trust as of
the Evaluation Time (i) on the last business day of each of
the months of June and December, (ii) on the
day in which any Unit of such Trust is tendered for
redemption, and (iii) on any other day such an evaluation is
desired by the Trustee or is deemed necessary by the
Depositor.  Such evaluation shall be made on the same basis
as set forth in the preceding paragraph.  The Trustee, in
lieu of making the evaluation provided in the
preceding paragraph, may use the evaluation made by the
Depositor for all purposes of this Indenture, except as
provided in the following paragraph, and shall not be
liable or responsible, under any circumstances whatever, for
its election to use the Depositor's evaluation or for the
accuracy or correctness thereof or for any
error or omission therein.
The Trustee shall also cause an evaluation of the Bonds
deposited in each Trust to be made as of the Evaluation Time
on the day preceding the day on which said Bonds
are deposited under this Indenture by J.J. Kenny Co., Inc.,
or such other evaluator as shall be specified by the
Depositor.  Such evaluation shall be made on the
same basis as set forth in the second preceding paragraph
except that it shall be based upon offering prices of said
Bonds.  The determination of the offering price
of the Bonds so made shall be included in the Schedule
attached to the Trust Agreement.  The Trustee shall not be
liable or responsible, under any circumstances
whatever, for the accuracy or correctness of such evaluation
or for the selection of the evaluator making the same.
     Section 4.02.  Redemptions by Trustee; Purchases
by Depositor';:  A Certificated Unitholder may redeem his
Units by sending a written redemption request
and tendering his Certificate to the Trustee at the
Trustee's Office.  Any individual Book Entry Unitholder
redeeming 1,000 Units or less may do so by telephone upon
completion and submission to the Trustee of a Telephone
Redemption Authorization Form prior to the date of
redemption (the "Eligible Book Entry Unitholders").  All
other Book Entry Unitholders must make their redemption
request in writing to the Trustee at the Trustee's Office,
and may do so by (i) completing the form on the
reverse side of their Book Entry Position Confirmation or
(ii) sending a written redemption request which includes (a)
the tax identification number for the account,
(b) the name and address of the redeeming Unitholder, (c) a
complete description of the Units to be redeemed with the
Trust number and payment option, (d) the number
of Units to be redeemed, (e) a notation that the Units are
in Book Entry form and (f) the number of Units remaining, if
the redemption is a partial redemption.  Any
proper request for redemption made in one of the manners
provided for above shall be effected by the Trustee on the
third business day following the day on which
such request for redemption is made (being herein called the
"Redemption Date").  Subject to payment by any redeeming
Unitholder of any tax or other governmental
charges which may be imposed thereon, such redemption is to
be made by payment on the Redemption Date of cash equivalent
to the Unit Value, determined by the Trustee
as of the Evaluation Time set forth in the Prospectus, on
the date of tender, multiplied by the number of Units owned
by the Unitholder plus a sum equivalent to the
amount of accrued interest which would have been payable on
such Units to, but not including, the third business day
following the date of tender (herein called the
"Redemption Price").  Unit redemption requests received by
telephone or in writing by the Trustee on any day after the
Evaluation Time set forth in the Prospectus
will be treated by the Trustee as received on the next day
on which the New York Stock Exchange is open for trading and
will be deemed to have been received on such
day for redemption at the Redemption Price computed on that
day.
The Trustee may in its discretion, and shall when so
directed by the Depositor, suspend the right of redemption
for Units of a Trust or postpone the date of payment
of the Redemption Price therefor for more than three
business days following the day on which a proper request
for redemption is made in the manner provided for in
this Section 4.02 (1) for any period during which the New
York Stock Exchange is closed other than customary weekend
and holiday closings or during which trading on
the New York Stock Exchange is restricted; (2) for any
period during which an emergency exists as a result of which
disposal by such Trust of the Bonds is not
reasonably practicable or it is not reasonably practicable
fairly to determine in accordance herewith the value of the
Bonds; or (3) for such other period as the
Securities and Exchange Commission may by order permit, and
shall not be liable to any person or in any way for any loss
or damage which may result from any such
suspension or postponement.
Not later than the close of business on the day a proper
request for redemption in the manner provided for in this
Section 4.02 by a Unitholder other than the
Depositor is received, the Trustee shall notify the
Depositor of such request.  The Depositor shall have the
right to purchase such Units by notifying the Trustee of
its election to make such purchase as soon as practicable
thereafter but in no event subsequent to the close of
business on the day on which the request for
redemption of such Units was received.  Such purchase shall
be made by payment for such Units by the Depositor to the
Unitholder not later than the close of business
on the Redemption Date of an amount equal to the Redemption
Price which would otherwise be payable by the Trustee to
such Unitholder.
Any Unit so purchased by the Depositor may at the option of
the Depositor be tendered to the Trustee for redemption at
the Trustee's Office in the manner provided in
the first paragraph of this Section 4.02.
If the Depositor does not elect to purchase any Unit of a
Trust tendered to the Trustee for redemption, or if a Unit
is being tendered by the Depositor for
redemption, that portion of the Redemption Price which
represents interest shall be withdrawn from the Interest
Account of such Trust to the extent available.  The
balance paid on any redemption, including accrued interest,
if any, shall be withdrawn from the Principal Account of
such Trust to the extent that funds are
available for such purpose.  If such available balance shall
be insufficient the Trustee shall sell such of the Bonds
held in such Trust currently designated for
such purposes by the Depositor as the Trustee in its sole
discretion shall deem necessary.  In the event that funds
are withdrawn from such Principal Account for
payment of accrued interest, such Principal Account shall be
reimbursed for such funds so withdrawn when sufficient funds
are next available in such Interest
Account.
The Depositor shall maintain with the Trustee a current list
of Bonds held in each Trust designated to be sold for the
purpose of redemption of Units of each Trust
tendered for redemption and not purchased by the Depositor,
and for payment of expenses hereunder, provided that if the
Depositor shall for any reason fail to
maintain such a list, the Trustee, in its sole discretion,
may designate a current list of Bonds for such purposes. 
The net proceeds of any sales of Bonds from such
list representing principal shall be credited to the
Principal Account of such Trust and the proceeds of such
sales representing accrued interest, if any, but not
accrued original issue discount, if any, shall be credited
to the Interest Account of such Trust.
The Trustee shall not be liable or responsible in any way
for depreciation or loss incurred by reason of any sale of
Bonds made pursuant to this Section 4.02.
Certificates evidencing Units redeemed pursuant to this
Section 4.02 shall be canceled by the Trustee and the Unit
or Units evidenced by such Certificates or Book
Entry Positions recorded on the books of the Trustee shall
be terminated by such redemptions.
     Section 4.03.   Transfer or Interchange of Units;: 
Units represented by a Certificate may be transferred to
another person by the registered holder thereof
by written request to the Trustee accompanied by
presentation and surrender of the Certificate at the
Trustee's Office properly endorsed or accompanied by a
written
instrument or instruments of transfer in form satisfactory
to the Trustee and executed by the Certificated Unitholder. 
Units represented by a Book Entry Position
may be transferred by delivery of written transfer
instructions to the Trustee's Office in such form and
accompanied by such documents as the Trustee may require. 
Units transferred, whether represented prior to the transfer
in certificated form or book entry form, shall after the
transfer be represented in the same form,
unless otherwise requested by the transferor.  Upon such
transfer, either (i) new Book Entry Position
Confirmation(s), (ii) new registered Certificate(s) or (iii)
any combination thereof, representing the same number of
Units as were transferred, will be issued in exchange and
substitution therefor.;  Any Certificated
Unitholder may change to book entry ownership upon
submitting to the Trustee such Unitholder's Certificate or
Certificates along with a written request in form
satisfactory to the Trustee that the Units represented by
such Certificate or Certificates thereafter be held in book
entry form.  Upon such surrender, an
appropriate notation will be made in the registration books
of the Trust to indicate that the Units formerly evidenced
by Certificates are held in a Book Entry
Position.  Any Book Entry Unitholder may change to
Certificate ownership of the same Trust by submitting a
written request to the Trustee in form satisfactory to the
Trustee.
Certificates issued pursuant to this Indenture are
interchangeable for one or more other Certificates
representing an equal aggregate number of Units of the same
Trust.  All Units shall be issued in denominations of one
Unit or any multiple and fraction thereof as may be
requested by the Unitholder.  Fractions of Units shall
be computed to three decimal places.
The Trustee may deem and treat the person in whose name any
Certificate or Book Entry Position shall be registered upon
the books of the Trustee as the owner of the
related Units for all purposes hereunder and the Trustee
shall not be affected by any notice to the contrary, nor be
liable to any person or in any way for so
deeming and treating the person in whose name any
Certificate or Book Entry Position shall be so registered.
A sum sufficient to pay any tax or other governmental charge
that may be imposed in connection with any such transfer or
interchange shall be paid by the Unitholder
to the Trustee.  The Trustee may require a Unitholder to pay
$2.00 for each new Certificate issued on any such transfer
or interchange.
All Units canceled pursuant to this Indenture shall be
disposed of by the Trustee without liability on its part.
     Section 4.04.   Certificates Mutilated, Destroyed,
Stolen or Lost;:  In case any Certificate shall become
mutilated or be destroyed, stolen or lost, the
Trustee shall execute and deliver a new Certificate or, at
the Certificated Unitholder's written request in a form
satisfactory to the Trustee to thereafter hold the
Units in a Book Entry Position, enter an equivalent Book
Entry Position on the records of the Trustee pursuant to
Section 4.03 in exchange and substitution therefor
upon the Unitholder's furnishing the Trustee with proper
identification and satisfactory indemnity, complying with
such other reasonable regulations and conditions
as the Trustee may prescribe and paying such expenses as the
Trustee may incur.  Any mutilated Certificate shall be duly
surrendered and cancelled before any new
Certificate or Book Entry Position shall be issued or
recorded in exchange and substitution therefor.  Upon the
issuance of any new Certificate or recording of any
Book Entry Position on the books of the Trustee a sum
sufficient to pay any tax or other governmental charge and
the fees and expenses of the Trustee may be imposed.

Any such new Certificate issued or Book Entry Position
recorded on the books of the Trustee pursuant to this
Section shall constitute complete and indefeasible
evidence of ownership of Units in the related Trust, as if
originally issued, whether or not the lost, stolen or
destroyed Certificate shall be found at any time.; 
In the event the related Trust has terminated or is in the
process of termination, the Trustee may, instead of issuing
a new Certificate or recording of a Book Entry
Position in exchange and substitution for any Certificate
which shall have become mutilated or shall have been
destroyed, stolen or lost, make the distributions in
respect of such mutilated, destroyed, stolen or lost
Certificate (without surrender thereof except in the case of
a mutilated Certificate) as provided in Section
7.02 hereof if the Trustee is furnished with such security
or indemnity as it may require to save it harmless, and in
the case of destruction, loss or theft of a
Certificate, evidence to the satisfaction of the Trustee of
the destruction, loss or theft of such Certificate and of
the ownership thereof.
     Section 4.05.   Compensation of Depositor;:  For
services performed under this Indenture in evaluating and
for maintaining surveillance over the Bonds in
each Trust, the Depositor shall be paid that amount per
$1,000 principal amount of Bonds in each Trust as set forth
under the caption "Essential Information _
Sponsor's Annual Evaluation Fee" in the Prospectus.  Such
compensation shall be computed on the basis of the greatest
amount of such principal amount of Bonds in
each Trust at any time during the period with respect to
which such compensation is being computed and may, from time
to time, be adjusted provided that the total
adjustment upward does not, at the time of such adjustment,
exceed the percentage of the total increase, after the date
hereof, in consumer prices for services as
measured by the United States Department of Labor Consumer
Price Index entitled "All Services Less Rent" or if such
index no longer exists, a comparable index.  The
consent or concurrence of any Unitholder hereunder shall not
be required for any such adjustment or increase.  The
Depositor shall in addition be compensated for its
costs incurred in providing such other services to the Trust
as the Trustee shall request.  Such compensation shall be
charged by the Trustee, upon receipt of
invoice therefor from the Depositor, against the Interest
and Principal Accounts of the respective Trusts on or before
the Distribution Date on which such period
terminates.  If the cash balances in the Interest and
Principal Accounts of any Trust shall be insufficient to
provide for amounts payable pursuant to this Section
4.05, the Trustee shall have the power to sell (i) Bonds of
such Trust from the current list of Bonds designated to be
sold pursuant to Section 4.02 hereof, or (ii)
if no such Bonds have been so designated such Bonds of such
Trust as the Trustee may see fit to sell in its own
discretion, and to apply the proceeds of any such
sale in payment of the amounts payable pursuant to this
Section 4.05.  Any moneys payable to the Depositor pursuant
to this Section 4.05 shall be secured by a prior
lien on such Trust except that no such lien shall be prior
to any lien in favor of the Trustee under the provisions of
Section 5.04.
Article V Trustee
     Section 5.01.   General Definition of Trustee's
Liabilities, Rights and Duties;:  The Trustee shall in its
discretion undertake such action as it may deem
necessary at any and all times to protect each Trust and the
rights and interests of the Unitholders pursuant to the
terms of this Indenture, provided, however, that
the expenses and costs of such actions, undertakings or
proceedings shall be reimbursable to the Trustee from the
Interest and Principal Accounts of such Trust and
the payment of such costs and expenses shall be secured by a
prior lien on such Trust.;  In addition to and
notwithstanding the other duties, rights, privileges and
liabilities of the Trustee as otherwise set forth herein,
the liabilities of the Trustee are further defined as
follows:
     (a)  All moneys deposited with or received by the
Trustee hereunder related to a Trust shall be held by it
without interest in trust as part of such Trust or
the Reserve Account of such Trust until required to be
disbursed in accordance with the provisions of this
Indenture and such moneys will be segregated by separate
recordation on the trust ledger of the Trustee so long as
such practice preserves a valid preference under applicable
law, or if such preference is not so preserved
the Trustee shall handle such moneys in such other manner as
shall constitute the segregation and holding thereof in
trust within the meaning of the Investment
Company Act of 1940.
     (b)  The Trustee shall be under no liability for any
action taken in good faith on any appraisal, paper, order,
list, demand, request, consent, affidavit,
notice, opinion, direction, evaluation, endorsement,
assignment, resolution, draft or other document whether or
not of the same kind prima facie properly executed,
or for the disposition of moneys, Bonds, Certificates or
Book Entry Positions pursuant to this Indenture, or in
respect of any evaluation which it is required to
make or is required or permitted to have made by others
under this Indenture or otherwise, except by reason of its
own negligence, lack of good faith or willful
misconduct, provided that the Trustee shall not in any event
be liable or responsible for any evaluation made by the
Depositor.  The Trustee may construe any of the
provisions of this Indenture, insofar as the same may appear
to be ambiguous or inconsistent with any other provisions
hereof, and any construction of any such
provisions hereof by the Trustee in good faith shall be
binding upon the parties hereto.
     (c)  The Trustee shall not be responsible for or in
respect of the recitals herein, the validity or sufficiency
of this Indenture or for the due execution
hereof by the Depositor, or for the form, character,
genuineness, sufficiency, value or validity of any Bonds
(except that the Trustee shall be responsible for the
exercise of due care in determining the genuineness of Bonds
delivered to it pursuant to contracts for the purchase of
such Bonds) or for or in respect of the
validity or sufficiency of any Certificates or of the due
execution thereof by the Depositor, or for the payment by
the Insurer of amounts due under or the
performance by the Insurer of its obligations in accordance
with the Insurance, and the Trustee shall in no event assume
or incur any liability, duty, or obligation
to any Unitholder or the Depositor other than as expressly
provided for herein.  The Trustee shall not be responsible
for or in respect of the validity of any
signature by or on behalf of the Depositor.
     (d)  The Trustee shall not be under any obligation to
appear in, prosecute or defend any action, which in its
opinion may involve it in expense or liability,
unless as often as required by the Trustee, it shall be
furnished with reasonable security and indemnity against
such expense or liability, and any pecuniary cost of
the Trustee from such actions shall be deductible from and a
charge against the Interest and Principal Accounts of the
affected Trust or Trusts.
     (e)  The Trustee may employ agents, attorneys,
accountants and auditors and shall not be answerable for the
default or misconduct of any such agents, attorneys,
accountants or auditors if such agents, attorneys,
accountants or auditors shall have been selected with
reasonable care.  The Trustee shall be fully protected in
respect of any action under this Agreement taken, or
suffered, in good faith by the Trustee, in accordance with
the opinion of its counsel.  The fees and expenses
charged by such agents, attorneys, accountants or auditors
shall constitute an expense of the Trustee reimbursable from
the Interest and Principal Accounts of the
affected Trust as set forth in Section 5.04 hereof.
     (f)  If at any time the Depositor shall fail to
undertake or perform any of the duties which by the terms of
this Indenture are required by it to be undertaken
or performed, or such Depositor shall become incapable of
acting or shall be adjudged a bankrupt or insolvent, or a
receiver of such Depositor or of its property
shall be appointed, or any public officer shall take charge
or control of such Depositor or of its property or affairs
for the purpose of rehabilitation,
conservation or liquidation, then in any such case, the
Trustee may:  (1) appoint a successor depositor who shall
act hereunder in all respects in place of such
Depositor which successor shall be satisfactory to the
Trustee, and which may be compensated at rates deemed by the
Trustee to be reasonable under the circumstances,
by deduction ratably from the Interest Accounts of the
affected Trusts or, to the extent funds are not available in
such Account, from the Principal Accounts of the
affected Trusts but no such deduction shall be made
exceeding such reasonable amount as the Securities and
Exchange Commission may prescribe in accordance with
Section 26(a)(2)(C) of the Investment Company Act of 1940,
or (2) terminate and liquidate the affected Trust in the
manner provided in Section 7.02.
     (g)  If (i) the value of any Trust as shown by any
evaluation by the Trustee pursuant to Section 4.01 hereof
shall be less than twenty per cent (20%) of the
aggregate principal amount of Bonds initially deposited in
such Trust, or (ii) by reason of the Depositor's redemption
of Units of a Trust not theretofore sold, the
net worth of the Trust is reduced to less than forty per
cent (40%) of the aggregate principal amount of Bonds
initially deposited therein, the Trustee may in its
discretion, and shall when so directed by the Depositor,
terminate this Indenture and the trust created hereby
insofar as they related to such Trust and liquidate
such Trust, all in the manner provided in Section 7.02.
     (h)  In no event shall the Trustee be liable for any
taxes or other governmental charges imposed upon or in
respect of the Bonds or upon the interest thereon or
upon it as Trustee hereunder or upon or in respect of any
Trust which it may be required to pay under any present or
future law of the United States of America or of
any other taxing authority having jurisdiction in the
premises. For all such taxes and charges and for any
expenses, including counsel fees, which the Trustee may
sustain or incur with respect to such taxes or charges, the
Trustee shall be reimbursed and indemnified out of the
Interest and Principal Accounts of the affected
Trust, and the payment of such amounts so paid by the
Trustee shall be secured by a prior lien on such Trust.
     (i)  The Trustee except by reason of its own negligence
or willful misconduct shall not be liable for any action
taken or suffered to be taken by it in good
faith and believed by it to be authorized or within the
discretion or rights or powers conferred upon it by this
Indenture.
     (j)  The Trustee in its individual or any other
capacity may become owner or pledgee of, or be an
underwriter or dealer in respect of, stocks, bonds or other
obligations issued by the same issuer (or an affiliate of
such issuer) or any obligor of any Bonds at any time held as
part of the Trust and may deal in any manner
with the same or with the issuer (or an affiliate of the
issuer) with the same rights and powers as if it were not
the Trustee hereunder.
     (k)  The Trust may include a letter or letters of
credit securing the purchase of Bonds pursuant to contracts
deposited by the Depositor which are issued by the
Trustee in its individual capacity for the account of the
Depositor, and the Trustee may otherwise deal with the
Depositor and the Trustee with the same rights and
powers as if it were not the Trustee hereunder.
     Section 5.02.   Books, Records and Reports;:  The
Trustee shall keep proper books of record and account of all
the transactions of each Trust and Book Entry
Positions recorded on the books of the Trustee under this
Indenture at the Trustee's Office including a record of the
name and address of, and the Certificates
issued by each Trust and held by, every Unitholder, and such
books and records of each Trust shall be open to inspection
by any Unitholder of such Trust at all
reasonable times during the Trustee's usual business hours.; 
The Trustee shall cause audited statements as to the assets
and income of each Trust to be prepared on
an annual basis by independent public accountants selected
by the Depositor, provided, however, (i) if the Sponsor
shall provide to the Trustee a written
representation concluding that in the best judgment of the
Sponsor ceasing to prepare such annual audited statement
would not have a material adverse impact on the
marketability of the Units in the secondary market or (ii)
if the cost to a Trust for preparation of such statements
shall exceed an amount equivalent to $.05 per
Unit on an annual basis then the Trustee shall not be
required to have such statements prepared.
To the extent permitted under the Investment Company Act of
1940 as evidenced by an opinion of counsel to the Depositor,
the Trustee shall pay, or reimburse to the
Depositor or others, the costs of the preparation of
documents and information with respect to each Trust
required by law or regulation in connection with the
maintenance of a secondary market in units of each Trust. 
Such costs may include but are not limited to accounting and
legal fees, blue sky registration and filing
fees, printing expenses and other reasonable expenses
related to documents required under Federal and state
securities laws.
The Trustee shall make such annual or other reports as may
from time to time be required under any applicable state or
federal statute or rule or regulation
thereunder.
     Section 5.03.   Indenture and List of Bonds on
File;:  The Trustee shall keep a certified copy or duplicate
original of this Indenture on file at its
corporate trust office available for inspection at all
reasonable times during the Trustee's usual business hours
by any Unitholder, together with a current list of
the Bonds in each Trust.
     Section 5.04.   Compensation;:  With respect to
Insured Trusts and Traditional Trusts, for services
performed under this Indenture, the Trustee shall be
paid at the rate specified under the caption "Essential
Information _ Trustee's Annual Fees," in the Prospectus,
provided, however, that for services performed prior
to the record date for the second distribution from the
Interest Account indicated under "Interest Distribution" for
each Trust in the Prospectus, the Trustee's
compensation shall be computed in respect of all Units
outstanding at the rate specified for the monthly plan of
distribution.  Such compensation with respect to
each Trust shall be computed on the basis of the largest
principal amount of Bonds in such trust at any time during
the period with respect to which such
compensation is being computed.  The Trustee may
periodically adjust the compensation provided for pursuant
to this paragraph in response to fluctuations in
short-term interest rates and average cash balances of the
Trust accounts (reflecting the cost to the Trustee of
advancing funds to a Trust to meet scheduled
distributions and changes in anticipated earnings on cash
balances) and may, in addition, adjust such portion of its
fee as is not computed by reference to the cash
balances in the Trust accounts in accordance with the
percentage of the total increase, after the date hereof, in
consumer prices for services as measured by the
United States Department of Labor Consumer Price Index
entitled "All Services Less Rent" or, if such index no
longer exists, a comparable index.  The consent or
concurrence of any Unitholder hereunder shall not be
required for any such adjustment or increase.  Such
compensation shall be charged by the Trustee against the
Interest and Principal Accounts of each Trust on or before
the Distribution Date on which such period terminates;
provided, however, that such compensation shall be
deemed to provide only for the usual, normal and proper
functions undertaken as Trustee pursuant to this Indenture. 
The Trustee shall charge the Interest and
Principal Accounts relating to such Trust for any and all
expenses, including the fees of counsel which may be
retained by the Trustee in connection with its
activities hereunder and disbursements incurred hereunder
and any extraordinary services performed by the Trustee
hereunder relating to such Trust.  The Trustee
shall be indemnified ratably by the affected Trust and held
harmless against any loss or liability accruing to it
without negligence, bad faith or willful misconduct
on its part, arising out of or in connection with the
acceptance or administration of this trust, including the
costs and expenses (including counsel fees) of
defending itself against any claim of liability in the
premises.  If the cash balances in the Interest and
Principal Accounts of the affected Trust shall be
insufficient to provide for amounts payable pursuant to this
Section 5.04 the Trustee shall have the power to sell (i)
Bonds of the affected Trust from the current
list of Bonds designated to be sold pursuant to Section 4.02
hereof, or (ii) if no such Bonds have been so designated
such Bonds of the affected Trust as the Trustee
may see fit to sell in its own discretion, and to apply the
proceeds of any such sale in payment of the amounts payable
pursuant to this Section 5.04.  The Trustee
shall not be liable or responsible in any way for
depreciation or loss incurred by reason of any sale of Bonds
made pursuant to this Section 5.04.  Any moneys
payable to the Trustee pursuant to this Section shall be
secured by a prior lien on the affected Trust.
     Section 5.05.  Removal and Resignation of Trustee;
Successor;:  The following provisions shall provide for the
removal and resignation of the Trustee and
the appointment of any successor trustee:
     (a)  The Trustee or any trustee or trustees hereafter
appointed may resign and be discharged of the trusts created
by this Indenture, by executing an instrument
in writing resigning as Trustee of such trusts and filing
the same with the Depositor and mailing a copy of a notice
of resignation to all Unitholders then of
record, not less than sixty days before the date specified
in such instrument when, subject to Section 5.05(e), such
resignation is to take effect.  Upon receiving
such notice of resignation, the Depositor shall promptly
appoint a successor trustee as hereinafter provided, by
written instrument, in duplicate, one copy of which
shall be delivered to the resigning Trustee and one copy to
the successor trustee.  In case at any time the Trustee
shall become incapable of acting, or shall be
adjudged a bankrupt or insolvent, or a receiver of the
Trustee or of its property shall be appointed, or any public
officer shall take charge or control of the
Trustee or of its property or affairs for the purposes of
rehabilitation, conservation or liquidation, then in any
such case the Depositor may remove the Trustee and
appoint a successor trustee by written instrument, in
duplicate, one copy of which shall be delivered to the
Trustee so removed and one copy to the successor
trustee; provided that a notice of such removal and
appointment of a successor trustee shall be mailed by the
Depositor to each Unitholder then of record.
     (b)  Any successor trustee appointed hereunder shall
execute, acknowledge and deliver to the Depositor and to the
retiring Trustee an instrument accepting such
appointment hereunder, and such successor trustee without
any further act, deed or conveyance shall become vested with
all the rights, powers, duties and obligations
of its predecessor hereunder with like effect as if
originally named Trustee herein and shall be bound by all
the terms and conditions of this Indenture.  Upon the
request of such successor trustee, the Depositor and the
retiring Trustee shall, upon payment of any amounts due the
retiring Trustee, or provision therefor to the
satisfaction of such retiring Trustee, execute and deliver
an instrument acknowledged by it transferring to such
successor trustee all the rights and powers of the
retiring Trustee; and the retiring Trustee shall transfer,
deliver and pay over to the successor trustee all Bonds and
moneys at the time held by it hereunder,
together with all necessary instruments of transfer and
assignment or other documents properly executed necessary to
effect such transfer and such of the records or
copies thereof maintained by the retiring Trustee in the
administration hereof as may be requested by the successor
trustee, and shall thereupon be discharged from
all duties and responsibilities under this Indenture.  The
retiring Trustee shall, nevertheless, retain a lien upon all
Bonds and moneys at the time held by it
hereunder to secure any amounts then due the retiring
Trustee.
     (c)  In case at any time the Trustee shall resign and
no successor trustee shall have been appointed and have
accepted appointment within thirty days after
notice of resignation has been received by the Depositor,
the retiring Trustee may forthwith apply to a court of
competent jurisdiction for the appointment of a
successor trustee.  Such court may thereupon, after such
notice, if any, as it may deem proper and prescribe, appoint
a successor trustee.
     (d)  Any corporation into which any trustee hereunder
may be merged or with which it may be consolidated, or any
corporation resulting from any merger or
consolidation to which any trustee hereunder shall be a
party, shall be the successor trustee under this Indenture
without the execution or filing of any paper,
instrument or further act to be done on the part of the
parties hereto, anything herein, or in any agreement
relating to such merger or consolidation, by which any
such trustee may seek to retain certain powers, rights and
privileges theretofore obtaining for any period of time
following such merger or consolidation, to the
contrary notwithstanding.
     (e)  Any resignation or removal of the Trustee and
appointment of a successor trustee pursuant to this Section
shall become effective upon acceptance of
appointment by the successor trustee as provided in
subsection (b) hereof.
     Section 5.06.   Qualifications of Trustee;:  The
Trustee shall be a corporation organized and doing business
under the laws of the United States or any
state thereof, which is authorized under such laws to
exercise corporate trust powers and having at all times an
aggregate capital, surplus, and undivided profits of
not less than $5,000,000.
Article VI Rights of Unitholders
     Section 6.01.   Beneficiaries of Trust;:  By the
purchase and acceptance or other lawful delivery and
acceptance of a Certificate of a Trust or the purchase
and acceptance of any Book Entry Position or other lawful
delivery and acceptance of such Book Entry Position
including receipt of a Book Entry Confirmation, the
Unitholder (i) shall be deemed to be a beneficiary of such
Trust and vested with all right, title and interest in such
Trust to the extent of the Unit or Units or
fraction thereof set forth and evidenced by such Certificate
or Book Entry Position and (ii) shall assent to and be bound
by the terms and conditions of this
Indenture.
     Section 6.02.   Rights, Terms and Conditions;:  In
addition to the other rights and powers set forth in the
other provisions and conditions of this
Indenture the Unitholders shall have the following rights
and powers and shall be subject to the ;  following terms
and conditions:
     (a)  A Unitholder may at any time prior to the
termination of the Trust tender his Units to the Trustee for
redemption in accordance with Section 4.02.
     (b)  The death or incapacity of any Unitholder shall
not operate to terminate this Indenture or the related
Trust, nor entitle his legal representatives or
heirs to claim an accounting or to take any action or
proceeding in any court of competent jurisdiction for a
partition or winding up of the Trust Fund or the
related Trust, nor otherwise affect the rights, obligations
and liabilities of the parties hereto or any of them.  Each
Unitholder expressly waives any right he may
have under any rule of law, or the provisions of any
statute, or otherwise, to require the Trustee at any time to
account, in any manner other than as expressly
provided in this Indenture, in respect of the Bonds or
moneys from time to time received, held and applied by the
Trustee hereunder.
     (c)  No Unitholder shall have any right to vote or in
any manner otherwise control the operation and management of
the Trust Fund, the related Trust or the
obligations of the parties hereto, nor shall anything herein
set forth, or contained in the terms of the Certificates, be
construed so as to constitute the
Unitholders from time to time as partners or members of an
association; nor shall any Unitholder ever be under any
liability to any third persons by reason of any
action taken by the parties to this Indenture, or any other
cause whatsoever.
Article VII Additional Covenants; Miscellaneous Provisions
     Section 7.01.   Amendments;:  This Indenture may be
amended from time to time by the parties hereto or their
respective successors, without the consent of
any of the Unitholders (a) to cure any ambiguity or to
correct or supplement any provision contained herein which
may be defective or inconsistent with any other
provision contained herein; or (b) to make such other
provision in regard to matters or questions arising
hereunder as shall not adversely affect the interests of
the Unitholders; provided, however, that the parties hereto
may not amend this Indenture so as to (1) increase the
number of Units issuable hereunder above the
number of Units as set forth in the Prospectus under the
caption "Essential Information _ Number of Units" except as
provided in Section 4.04 hereof or such lesser
amount as may be outstanding at any time during the term of
this Indenture or (2) subject to Sections 3.08 and 3.14,
permit the deposit or acquisition hereunder of
obligations or other securities either in addition to or in
substitution for any of the Bonds.
Promptly after the execution of any such amendment the
Trustee shall furnish written notification to all the
outstanding Unitholders of the substance of such
amendment.
     Section 7.02.   Termination;:  Each Trust shall
terminate upon the maturity, redemption, sale or other
disposition as the case may be of the last Bond held
in such Trust unless sooner terminated as hereinbefore
specified and may be terminated at any time by the written
consent of one hundred per cent of the Unitholders
of the respective Trust; provided, that in no event shall
any Trust continue beyond the end of the calendar year
preceding the fiftieth anniversary of the execution
of this Indenture for National and State Trusts, beyond the
end of the calendar year preceding the twentieth anniversary
of its execution for Long Intermediate and
Intermediate Trusts and beyond the end of the calendar year
preceding the tenth anniversary of its execution for Short
Intermediate and Short Term Trusts.  Written
notice of any termination, specifying for Certificated
Unitholders the time or times at which the Certificated
Unitholders of such Trust may surrender their
Certificates for cancellation shall be given by the Trustee
to each such Certificated Unitholder at his address
appearing on the registration books of the Trustee. 
Written notice of any termination shall be given by the
Trustee to each Book Entry Unitholder at his address
appearing on the registration books of the Trustee. 
Within a reasonable period of time after the termination of
a Trust the Trustee shall fully liquidate the Bonds of such
Trust then held, if any, and shall:
     (a)  deduct from the Interest Account of such Trust or,
to the extent that funds are not available in such Account,
from the Principal Account of such Trust and
pay to itself individually an amount equal to the sum of (1)
its accrued compensation for its ordinary recurring services
in connection with such Trust, (2) any
compensation due it for its extraordinary services in
connection with such Trust and (3) any costs, expenses or
indemnities in connection with such Trust as provided
herein;
     (b)  deduct from the Interest Account of such Trust or,
to the extent that funds are not available in such Account,
from the Principal Account of such Trust and
pay accrued and unpaid fees of bond counsel in connection
with such Trust, if any, as directed and certified to by the
Depositor;
     (c)  deduct from the Interest Account of such Trust or
the Principal Account of such Trust any amounts which may be
required to be deposited in the Reserve
Account of such Trust to provide for payment of any
applicable taxes or other governmental charges and any other
amounts which may be required to meet expenses
incurred under this Indenture in connection with such Trust;
     (d)  distribute to each Unitholder of such Trust, upon
surrender for cancellation of his Certificate or
Certificates, if any, such holder's pro rata share of
the balance of the Interest Account of such Trust;
     (e)  distribute to each Unitholder of such Trust, upon
surrender, for cancellation by the Unitholder of his
Certificate or Certificates, if any, such
Unitholder's pro rata share of the balance of the Principal
Account of such Trust; and
     (f)  together with such distribution to each Unitholder
as provided for in (d) and (e), furnish to each such
Unitholder a final distribution statement as of the
date of the computation of the amount distributable to
Unitholders, setting forth the data and information in
substantially the form and manner provided for in
Section 3.06 hereof.
The amounts to be so distributed to each Unitholder shall be
that pro rata share of the balance of the total Interest and
Principal Accounts of such Trust as shall
be represented by the Units therein evidenced by the
outstanding Certificate or Certificates held of record by
such Unitholder and/or as evidenced on the records of
the Trustees as Book Entry Positions.
The Trustee shall be under no liability with respect to
moneys held by it in the Interest, Reserve and Principal
Accounts of a Trust upon termination except to hold
the same in trust without interest until disposed of in
accordance with the terms of this Indenture.
In the event that all of the Certificated Unitholders of
such Trust shall not surrender their Certificates for
cancellation within six months after the time
specified in the above-mentioned written notice, the Trustee
shall give a second written notice to such remaining
Certificated Unitholders to surrender their written
Certificates for cancellation and receive the liquidation
distribution with respect thereto.  If within one year after
the second notice all the Certificates of such
Trust shall not have been surrendered for cancellation, the
Trustee may take steps, or may appoint an agent to take
appropriate steps, to contact such remaining
Certificated Unitholders concerning surrender of their
Certificates and the cost thereof shall be paid out of the
moneys and other assets which remain in such Trust
hereunder.
     Section 7.03.   Construction;:  This Indenture is
executed and delivered in the State of New York, and all
laws or rules of construction of such State shall
govern the rights of the parties hereto and the Unitholders
and the interpretation of the provisions hereof.
     Section 7.04.   Registration of Units;:  The
Depositor agrees and undertakes to register the Units with
the Securities and Exchange Commission or other
applicable governmental agency pursuant to applicable
Federal or State statutes, if such registration shall be
required, and to do all things that may be necessary
or required to comply with this provision during the term of
the Trust Fund created hereunder, and the Trustee shall
incur no liability or be under any obligation or
expense in connection therewith, except as provided in
Section 3.01.
     Section 7.05.   Written Notice;:  Any notice,
demand, direction or instruction to be given to the
Depositor hereunder shall be in writing and shall be duly
given if mailed or delivered to the Depositor at 333 West
Wacker Drive, Chicago, Illinois 60606, or at such other
address as shall be specified by the Depositor to
the Trustee in writing.  Any notice, demand, direction or
instruction to be given to the Trustee shall be in writing
and shall be duly given if mailed or delivered
to the Trustee's Office or such other address as shall be
specified to the Depositor by the Trustee in writing.  Any
notice to be given to the Unitholders shall be
duly given if mailed or delivered to each Unitholder at the
address of such holder appearing on the registration books
of the Trustee.
     Section 7.06.   Severability;:  If any one or more
of the covenants, agreements, provisions or terms of this
Indenture shall be held contrary to any express
provision of law or contrary to policy of express law,
though not expressly prohibited, or against public policy,
or shall for any reason whatsoever be held invalid,
then such covenants, agreements, provisions or terms shall
be deemed severable from the remaining covenants,
agreements, provisions or terms of this Indenture and
shall in no way affect the validity or enforceability of the
other provisions of this Indenture or of the Certificates or
the rights of the Unitholders.
     .c2.Section 7.07.   Dissolution of Depositor Not to
Terminate;:  The dissolution of the Depositor from or for
any cause whatsoever shall not operate to
terminate this Indenture insofar as the duties and
obligations of the Trustee are concerned.
In Witness Whereof, John Nuveen & Co. Incorporated, has
caused this Standard Terms and Conditions of Trust to be
executed by its President, one of its Vice
Presidents or one of its Assistant Vice Presidents and its
corporate seal to be hereto affixed and attested by its
Secretary or its Assistant Secretary and The Chase
Manhattan Bank (National Association) has caused this Trust
Indenture and Agreement to be executed by one of its Vice
Presidents or Second Vice Presidents and its
corporate seal to be hereto affixed and attested to by one
of its Assistant Treasurers; all as of the day, month and
year first above written.
John Nuveen & Co. Incorporated,
Depositor
By   
Authorized Officer
(Seal)
Attest:
By_______________________________
                    Assistant Secretary
The Chase Manhattan Bank (National Assocation), Trustee
By   
Second Vice President
(Seal)
Attest:
By_______________________________
                    Assistant Treasurer



<PAGE>

Exhibit 1.1.1
Nuveen Tax-Exempt Unit Trust Series 823
Trust Indenture and Agreement
Dated September 7, 1995
This Trust Indenture and Agreement by and between John
Nuveen & Co. Incorporated, as Depositor and The Chase
Manhattan Bank (National Association), as Trustee, sets
forth certain provisions in full and incorporates other
provisions by reference to the document entitled "Standard
Terms and Conditions of Trust for Nuveen
Tax-Exempt Unit Trust Series 823 and subsequent Series,
effective September 7, 1995" (herein called the "Standard
Terms and Conditions of Trust"), and such
provisions as are set forth in full and such provisions as
are incorporated by reference constitute a single
instrument.  All references herein to Articles and
Sections are to Articles and Sections of the Standard Terms
and Conditions of Trust.
Witnesseth That:
In consideration of the premises and of the mutual
agreements herein contained, the Depositor and the Trustee,
agree as follows:
Part I
Standard Terms and Conditions of Trust
Subject to the Provisions of Part II hereof, all the
provisions contained in the Standard Terms and Conditions of
Trust are herein incorporated by reference in their
entirety and shall be deemed to be a part of this instrument
as fully and to the same extent as though said provisions
had been set forth in full in this instrument.
Part II
Special Terms and Conditions of Trust
The following special terms and conditions are hereby agreed
to:
     (a)  The Bonds defined in Section 1.01(1) listed in
Schedule A hereto have been deposited in trust under this
Trust Indenture and Agreement.
     (b)  The fractional undivided interest in and ownership
of the Trust Fund represented by each Unit for a Trust on
the Initial Date of Deposit is the amount set
forth under the captions "Essential Information _ Fractional
Undivided Interest in the Trust per Unit" in the Prospectus.
     (c)  The number of Units created of a Trust are as set
forth under the caption "Essential Information - Number of
Units" in the Prospectus for each Trust.
In Witness Whereof, John Nuveen & Co. Incorporated, has
caused this Trust Indenture and Agreement for Nuveen
Tax-Exempt Unit Trust Series 823 to be executed by its
President, one of its Vice Presidents or one of its
Assistant Vice Presidents and its corporate seal to be
hereto affixed and attested by its Secretary or its
Assistant Secretary and The Chase Manhattan Bank (National
Association) has caused this Trust Indenture and Agreement
to be executed by one of its Vice Presidents or
Second Vice Presidents and its corporate seal to be hereto
affixed and attested to by one of its Assistant Treasurers;
all as of the day, month and year first above
written.
John Nuveen & Co. Incorporated,
Depositor
By Larry Woods Martin
Authorized Officer
(Seal)
Attest:
By Morrison C. Warren
                    Assistant Secretary
The Chase Manhattan Bank (National Association), Trustee
By Timothy Kelley  
Second Vice President
(Seal)
Attest:
By Joseph Lyons
                    Assistant Treasurer
Schedule A to the Trust Indenture and AgreementSecurities
Initially DepositedinNuveen Tax-Exempt Unit Trust Series 823



(Note:    Incorporated herein and made a part hereof is the
"Schedule of Investments" as set forth for each Trust in the
Prospectus.)



<PAGE>

EXHIBIT 3.1

(ON CHAPMAN AND CUTLER LETTERHEAD)

9/07/95


John Nuveen & Co. Incorporated
333 W. Wacker Drive
Chicago, Illinois  60606

RE:  Nuveen Tax-Exempt Unit Trust, Series 823

Gentlemen:

    We have served as counsel for you, as depositor of Nuveen Tax-Exempt Unit
Trust, Series 823 (hereinafter referred to as the "Fund"), in connection
with the issuance under the Trust Indenture and Agreement dated the date 
hereof between John Nuveen & Co. Incorporated, as Depositor, and The Chase
Manhattan Bank (National Association), as Trustee, of Units of fractional 
undivided interest in the one or more Trusts of said Fund (hereinafter 
referred to as the "Units").
 
    In connection therewith, we have examined such pertinent records and
documents and matters of law as we have deemed necessary in order to enable us
to express the opinions hereinafter set forth.

    Based upon the foregoing, we are of the opinion that:

   1.   The execution and delivery of the Trust Indenture and Agreement and
the establishment of book entry positions and the execution and issuance of 
certificates evidencing the Units in the Trusts of the Fund have been duly 
authorized; and

    2.   The book entry positions and certificates positions evidencing the 
Units in the Trusts of the Fund when duly executed and delivered or duly 
established by the Depositor and the Trustee in accordance with the 
aforementioned Trust Indenture and Agreement, will constitute valid and 
binding obligations of such Trusts and the Depositor in accordance with the 
terms thereof.

    We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement (File No. 33-62325) relating to the Units referred
to above and to the use of our name and to the reference to our firm in said
Registration Statement and in the related Prospectus.

Respectfully submitted,



CHAPMAN AND CUTLER
   

<PAGE>

EXHIBIT 4.4

CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the use of 
our report and to all references to our Firm included in or made a
part of this Registration Statement.


ARTHUR ANDERSON LLP

Chicago, Illinois
9/07/95



 
<PAGE>

EXHIBIT 4.2

(On J. J. Kenny Co., Inc. Letterhead)

9/07/95

John Nuveen & Company
333 West Wacker Drive
Chicago, IL 60606

Re:  Nuveen Tax Exempt Unit Trust, Series 823

Gentlemen:

     We have examined the registration statement File No. 33-62325
for the above-captioned trust.  We hereby acknowledge that
Kenny S&P Evaluation Services, a division of J. J. Kenny Co., Inc.
is currently acting as the evaluator for the trust. We hereby
consent to the use in the Registration Statement of the reference
to Kenny S&P Evaluation Services, a division of J. J. Kenny Co., Inc.
as evaluator.

     In addition, we hereby confirm that the ratings indicated in the
Registration Statement for the respective bonds comprising the trust
portfolio are the ratings currently indicated in our KENNYBASE database.

     You are hereby authorized to file a copy of this letter with the
Securities and Exchange Commission.

Sincerely,


Frank A. Ciccotto


<PAGE>

EXHIBIT 4.1

(ON STANDARD & POOR'S, A DIVISION OF THE MCGRAW-HILL COMPANIES LETTERHEAD)

9/07/95

John Nuveen & Company
333 West Wacker Drive
Chicago, Illinois  60606

Re:     NUVEEN TAX EXEMPT UNIT TRUST, SERIES 823

        This is in response to your requests regarding the above-captioned
fund which consists of separate underlying insured and traditional unit
investment trusts, SEC file # 33-62325.

        INSURED TRUSTS.

        With respect to the insured trusts we have reviewed the information
presented to us and have assigned a 'AAA' rating to the units of each insured
trust and a 'AAA' rating to the securities contained in each insured trust.
The ratings are direct reflections of the portfolio of each insured trust,
which will be composed soley of securities covered by bond insurance policies
that insure against default in the payment of principal and interest on the
securities contained in each insured trust for as long as they remain
outstanding.  We understand that the bonds described in the prospectus are the
same as those in the attatched list.  Since such policies have been issued by
MBIA which has been assigned a 'AAA' claims paying ability rating by S&P, S&P
has assigned a 'AAA' to the units of each insured trust and a 'AAA' rating to
the securities contained in each trust.

        You have permission to use the name of Standard & Poor's, a Division of
The McGraw-Hill Companies and the above-assigned rating in connection with your
dissemination of information relating to the insured trusts provided that it is
understood that the ratings are not 'market' ratings nor recommendations to buy,
hold or sell the units of the insured trusts or the securities contained in the
insured trusts.  Further, it should be understood the rating on the units of
each insured trust does not take into account the extent to which the trust's
expenses or portfolio asset sales for less than the principal required to be
paid on the portfolio assets.  S&P reserves the right to advise its own clients,
subscribers, and the public of the ratings.  S&P relies on the sponsor and its
counsel, accountants, and other experts for the accuracy and completeness of the
information submitted in connection with the ratings.  S&P does not
independently verify the truth or accuracy of any such information.

        This letter evidences our consent to the use of the name of Standard &
Poor's, a Division of The McGraw-Hill Companies in connection with the rating
assigned to the units of each insured trust in the registration statement or
prospectus relating to the units and the trusts.  However, this letter should
not be construed as a consent by us, within the meaning of section 7 of the
Securities Act of 1933, to the use of Standard and Poor's, a Division of The
McGraw-Hill Companies in connection with the ratings assigned to the securities
contained in the insured trusts.  You are hereby authorized to file a copy of
this letter with the Securities and Exchange Commission.

        Please be certain to send us three copies of your final prospectus as
soon as it becomes available.  Should we not receive them within a reasonable
time after the closing or should they not conform to certification received by
us, we reserve the right to nullify the ratings.


<PAGE>



        TRADITIONAL TRUSTS.

        With respect to the traditional unit investment trusts within the
above-captioned fund, we have reviewed the information presented to us and we
hereby confirm that the ratings indicated in the prospectus as being assigned
by Standard & Poor's, a Division of The McGraw-Hill Companies to the securities
contained in each traditional trust of such fund are, according to our records,
the ratings currently assigned by Standard & Poor's, a Division of The
McGraw-Hill Companies to such securities.  You understand that Standard
& Poor's, a Division of The McGraw-Hill Companies has not consented to, and will
not consent to, being named as "expert" under the federal securities laws,
including and without limitation, Section 7 of the Securities Act of 1933, with
respect to the ratings on any securities contained in any of the traditional
trusts.

        Please note that the 'AAA' rating assigned to the units of each
insured trust does not apply to the units of any of the traditional trusts.


                                         STANDARD & POOR'S, A DIVISION
                                         OF THE MCGRAW-HILL COMPANIES
                                      
    
                                          Sanford Bragg



<PAGE>

EXHIBIT 3.2

(ON CHAPMAN AND CUTLER LETTERHEAD)

9/07/95

John Nuveen & Co. Incorporated
333 W. Wacker Drive
Chicago, Illinois  60606

RE:  Nuveen Tax-Exempt Unit Trust, Series 823

Gentlemen:

    We have served as counsel for you, as Depositor of Nuveen Tax-Exempt Unit
Trust, Series 823 (the "Fund") in connection with the issuance under the
Trust Indenture and Agreement, dated the date hereof between John Nuveen & Co.
Incorporated, as Depositor, and The Chase Manhattan Bank (National Association),
as Trustee, of Units of fractional undivided interest (the "Units"), as 
evidenced by a book entry position or certificate, if requested by the purchaser
of Units, in the one or more Trusts of said Fund.

    We have also served as counsel for you in connection with all previous
Series of the Nuveen Tax-Exempt Unit Trust and as such have previously 
examined such pertinent records and documents and matters of law as we have 
deemed necessary, including (but not limited to) the Trust Indenture and 
Agreements with respect to those series.  We have also examined such 
pertinent records and documents and matters of law as we have deemed 
necessary including (but not limited to) the Trust Indenture and Agreement 
relating to Nuveen Tax-Exempt Unit Trust, Series 823.

    We have concluded that the Trust Indenture and Agreement for the Fund and
its counterpart in each of the prior issues of Nuveen Tax-Exempt Unit Trust 
are in all material respects substantially identical.

    Based upon the foregoing, and upon such matters of law as we consider
to be applicable we are of the opinion that, under existing federal income
law:

    (i)  For Federal income tax purposes, each of the Trusts will not be
taxable as an association but will be governed by the provisions of 
Subchapter J (relating to Trusts) of Chapter 1, Internal Revenue Code of 
1986 (the "Code").

    (ii) Each Unitholder will be considered as owning a pro rata
share of each asset of the respective Trust of the Fund in the proportion
that the number of Units of such Trust held by him bears to the total number
of outstanding Units of such Trust. Under Subpart E, Subchapter J of Chapter
1 of the Code, income of each Trust will be treated as income of each
Unitholder thereof in the proportion described and an item of Fund income
will have the same character in the hands of a Unitholder as it would have in
the hands of the Trustee.  Accordingly, to the extent that the income of a
Trust consists of interest and original issue discount excludable from gross
income under Section 103 of the Code, such income will be excludable from
federal gross income of the Unitholder, except in the case of a Unitholder
who is a substantial user (or a person related to such user) of a facility
financed through issuance of any industrial development bonds or certain
private activity bonds held by the Trust. In the case of such Unitholder who
is a substantial user (and no other) interest received and original issue
discount with respect to his Units attributable to such industrial
development bonds or such private activity bonds is includable in his gross
income. In the case of certain corporations, interest on the Bonds is included
in computing the alternative minimum tax pursuant to Sections 56(f) and 56(g)
of the Code, the enviromental tax (the "Superfund Tax") imposed by Sections
59A of the Code, and the branch profits tax imposed by Section 884 of the Code
with repect to U.S. branches of foreign corporations.

    (iii) Gain or loss will be recognized to a Unitholder upon
redemption or sale of his Units.  Such gain or loss is measured by comparing 
the proceeds of such redemption or sale with the adjusted basis of such Units.
Before adjustment, such basis would normally be cost if the Unitholder had
acquired his Units by purchase, plus his aliquot share of advances by the
Trustee to the Trust to pay interest on Bonds delivered after the Unitholder's
settlement date to the extent that such interest accrued on the Bonds during
the period from the Unitholder's settlement date to the date such Bonds are
delivered to the Trust, but only to the extent that such advances are to be
repaid to the Trustee out of interest received by the Fund with respect to
such Bonds.  In addition, such basis will be increased by both the
Unitholder's aliquot share of the accrued original issued discount with
respect to each Bond held by the Trust with respect to which there was an
original issue discount and reduced by the annual amortization of bond
premium, if any, on Bonds held by the Trust.

<PAGE>

    (iv) If the Trustee disposes of a Trust asset (whether by sale, payment on
maturity, redemption or otherwise), gain or loss is recognized to the
Unitholder and the amount thereof is measured by comparing the
Unitholder's aliquot share of the total proceeds from the transaction
with his basis for his fractional interest in the asset disposed of.  Such 
basis is ascertained by apportioning the tax basis for his Units among each 
of the Trust assets (as of the date on which his Units were acquired) ratably 
according to their values as of the valuation date nearest the date on which 
he purchased such Units.  A Unitholder's basis in his Units and of his
fractional interest in each Trust asset must be reduced by the amount of his 
aliquot share of interest received by the Fund, if any, on Bonds delivered
after the Unitholder's settlement date to the extent that such
interest accrued on the Bonds during the period from the Unitholder's
settlement date to the date such Bonds are delivered to the Trust, must be 
reduced by the annual amortization of bond premium, if any, on Bonds held by 
the Trust and must be increased by the Unitholder's share of accrued
original issue discount with respect to each Bond which, at the time
the Bond was issued, had original issue discount.

     (v)  In the case of any Bond held by the Trust where the "stated
redemption price at maturity" exceeds the "issue price," such excess shall
be original issue discount.  With respect to each Unitholder, upon the
purchase of his Units subsequent to the original issuance of Bonds held by the
Trust Section 1272(a)(7) of the Code provides for a reduction in the accrued
"daily portion" of such original issue discount upon the purchase of a Bond
subsequent to the Bond's original issue, under certain circumstances.  In the
case of any Bond held by the Trust the interest on which is excludable from
gross income under Section 103 of the Code, any original issue discount which
accrues with respect thereto will be treated as interest which is excludable
from gross income under Section 103 of the Code.

    (vi)  In the case of any Bond which matures within one year of the date
issued, the accrual of tax-exempt original issue discount will generally be
computed daily on a ratable basis unless the Unitholder elects to accrue such
discount under a constant yield method, compounded daily.

    (vii)  In the case of any Bond which does not mature within one year
after the date issued, tax-exempt original issue discount will accrue
daily, computed generally under a constant yield method, compounded
semiannually (with straight line interpolation between compounding dates).

    (viii)  In the case of Trusts for which MBIA Insurance Corporation ("MBIA")
insurance with respect to each of the Bonds deposited therein has been obtained 
by the Depositor or the issuer or underwriter of the Bonds, we have examined 
the form of MBIA's policy or several policies of insurance (the "Policies") 
which have been delivered to the Trustee.  Assuming issuance of Policies in such
form, in our opinion, any amounts paid under said Policies representing maturing
interest on defaulted obligations held by the Trustee will be excludable from 
Federal gross income if, and to the same extent as, such interest would have 
been so excludable if paid by the respective issuer, provided that, at the time 
such policies are purchased, the amounts paid for such policies are reasonable, 
customary and consistent with the reasonable expectation that the issuer of the 
bonds, rather than the insurer, will pay debt service on the bonds.  Paragraph 
(ii) of this opinion is accordingly applicable to Policy proceeds representing 
maturing interest.
<PAGE>

    Because the Trusts do not include any "specified private activity bonds"
within the meaning of Section 57(a)(5) of the Code issued on or after August
8, 1986, none of the Trust Fund's interest income shall be treated as an item
of tax preference when computing the alternative minimum tax.  In the case of
corporations, for taxable years beginning after December 31, 1986, the alter-
native minimum tax and the Superfund Tax depend upon the corporation's
alternative minimum taxable income ("AMTI"), which is the corporation's
taxable income with certain adjustments.

    Pursuant to Section 56(c) of the Code, one of the adjustment
items used in computing AMTI and the Superfund Tax of a corporation
(other than an S Corporation, Regulated Investment Company, Real Estate
Investment Trust or REMIC) is an amount equal to 50% of the excess of such
corporation's "adjusted net book income" over an amount equal to its AMTI
(before such adjustment item and the alternative tax net operating
loss deduction).  For taxable years beginning after 1989, such adjustment item
will be 75% of the excess of such corporation's "adjusted current earnings"
over an amount equal to its AMTI (before such adjustment item and the
alternative tax net operating net operating loss deduction) pursuant to
Section 56(g) of the Code.  Both "adjusted net book income" and "adjusted
current earnings" include all tax-exempt interest, including interest on all
Bonds in the Trust, and tax-exempt original issue discount.

   Effective for tax returns filed after December 31, 1987,  all taxpayers
are required to disclose to the Internal Revenue Service the amount of
tax-exempt interest earned during the year.

    Section 265 of the Code generally provides for a reduction
in each taxable year of 100% of the otherwise deductible interest on
indebtedness incurred or continued by financial institutions, to which either 
Section 585 or Section 593 of the Code applies, to purchase or carry 
obligations acquired after August 7, 1986, the interest on which is exempt
from federal income taxes for such taxable year.  Under rules prescribed by 
Section 265, the amount of interest otherwise deductible by such financial
institutions in any taxable year which is deemed to be attributable to 
tax-exempt obligations acquired after August 7, 1986 will be the amount
that bears the same ratio to the interest deduction otherwise allowable
(determined without regard to Section 265) to the taxpayer for the taxable
year as the taxpayer's average adjusted basis (within the meaning of Section
1016) of tax-exempt obligations acquired after August 7, 1986, bears to
such average adjusted basis for all assets of the taxpayer, unless such 
financial institution can otherwise establish under regulations to be
prescribed by the Secretary of the Treasury, the amount of interest on 
indebtedness incurred or continued to purchase or carry such obligations.

<PAGE>

    We also call attention to the fact that, under Section 265 of the
Code,  interest on indebtedness incurred or continued to purchase or carry
Units by taxpayers other than certain financial institutions, as referred to
above, is not deductible for Federal income tax purposes. Under rules used by
the Internal Revenue Service for determining when borrowed funds are con-
sidered used for the purpose of purchasing or carrying particular assets, the
purchase of Units may be considered to have been made with borrowed funds even
though the borrowed funds are not directly traceable to the purchase of Units.
However, these rules generally do not apply to interest paid on indebtedness
incurred for expenditures of a personal nature such as a mortgage incurred to
purchase or improve a personal residence.

    "The Revenue Reconciliation Act of 1993" (the "Tax Act") subjects tax-exempt
bonds to the market discount rules of the Code effective for bonds purchased
after April 30, 1993.  In general, market discount is the amount (if any) by
which the stated redemption price at maturity exceeds an investor's purchase
price (except to the extent that such difference, if any, is attributable to
original issue discount not yet accrued) subject to a statutory de minimis rule.
Market discount can arise based on the price a Trust pays for Bonds or the price
a Unitholder pays for his or her Units.  Under the Tax Act, accretion of market
discount is taxable as ordinary income; under prior law, the accretion had been 
treated as capital gain.  Market discount that accretes while a Trust holds a 
Bond would be recognized as ordinary income by the Unitholders when principal 
payments are received on the Bond, upon sale or at redemption (including early 
redemption), or upon the sale or redemption of his or her Units, unless a 
Unitholder elects to include market discount in taxable income as it accrues.
     
    We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement (File No. 33-62325) relating to the Units referred
to above and to the use of our name and to the reference to our firm in said
Registration Statement and in the related Prospectus.

Respectfully submitted,


CHAPMAN AND CUTLER


<PAGE>

EXHIBIT 3.3


(ON VENABLE, BAETJER AND HOWARD LETTERHEAD)

9/07/95

Nuveen Tax-Exempt Unit Trust --
Series 823, Maryland Traditional Trust 310
John Nuveen & Co. Incorporated
333 West Wacker Drive
Chicago, Illinois  60606

Attn:  James J. Wesolowski, Esquire
       Vice President, General Counsel
       and Secretary

Chase Manhattan Bank, N.A.,
as Trustee of Nuveen Tax-Exempt Unit Trust --
Series 823, Maryland Traditional Trust 310
770 Broadway
New York, New York  10003

Gentlemen:

    We have acted as special Maryland counsel to the Nuveen Tax-Exempt Unit 
Trust-- Series 823 (the "Fund") with respect to the issuance by the Fund 
of units of fractional undivided interest in the Fund (the "Units") as  
described in a certain Registration Statement (No. 33-62325) on Form S-6
under the Securities Act of 1933, as amended (the "Registration Statement").
The Fund has been organized under a Trust Indenture and Agreement dated
as of the date hereof between John Nuveen & Co. Incorporated (the "Depositor")
and Chase Manhattan Bank, N.A. (the "Trustee").  The Fund will 
issue the Units in several Trusts, one of which is the Maryland Traditional
Trust 310 (the "Trust").  The Units will be purchased by various 
investors (the "Unitholders"). Each Unit of the Trust represents a fractional
undivided interest in the principal and net income of the Trust in the ratio 
of ten Units for each $1,000 principal amount of the obligations initially 
acquired by the Trust.  Each trust will be administered as a distinct entity 
with seperate certificates, investments, expenses, books and records.

    The assets of the Trust will consist of interest-bearing obligations 
issued by or on behalf of the State of Maryland, its political subdivisions 
and authorities and, provided the interest thereon is exempt from State 
income tax under the laws or treaties of the United States, obligations
issued by or on behalf of the territories or possessions of the United 
States, including Puerto Rico, the Virgin Islands and Guam, and their 
political subdivisions and authorities (the "Bonds").(N.1)  Distributions 
of the interest received by the Trust will be made semi-annually unless the 
Unitholder elects otherwise.

    You have requested our opinion as to the application of Maryland state and
local taxes to the Trust and the Unitholders.  In rendering our
opinion, we have assumed (i) that the interest on all Bonds in the Trust will 
be exempt from Federal income tax (N.2) and (ii) that the Bonds have been 
issued in strict compliance with all requirements of Maryland law and, where 
applicable, Federal or territorial law.  Furthermore, in rendering our 
opinion, we have relied on the opinion of Messrs. Chapman and Cutler, of even 
date herewith, that:
 
    (i)  The Trust will not be taxable as an association but will be governed 
by the provisions of Subchapter J (relating to trusts) of Chapter 1 of the 
Internal Revenue Code of 1986 (the "Code");

    (ii) Each Unitholder will be considered the owner of a pro rata
portion of the Trust and will be subject to Federal income tax on the income
therefrom under the provisions of Subpart E of Subchapter J of Chapter 1 of 
the Code;

    (iii) The Trust, itself, will not be subject to Federal income taxes;

    (iv) For Federal income tax purposes, each item of Trust income will have
the same character in the hands of a Unitholder as it would have in
the hands of the Trustee.  Accordingly, to the extent that the income of the
Trust consists of interest excludable from Federal gross income, such income
will be excludable from Federal gross income of the Unitholder;


<PAGE>

    (v)  For Federal income tax purposes, each Unitholder will have a
taxable event upon the redemption or sale of his Unit.  Gain or loss will
be determined by comparing the proceeds of such a redemption or sale with
the Unitholder's adjusted basis for the Unit.  Before adjustment, this basis
would be cost, if the Unitholder had purchased his Units.  For Federal
income tax purposes, if the Trustee disposes of a Trust asset (whether 
by sale, payment on maturity, retirement or otherwise), gain or loss will 
result to each Unitholder; such gain or loss is to be computed by measuring 
the Unitholder's aliquot share of the total proceeds from the transaction
against his basis for his fractional interest in the asset disposed of (such 
basis being determined by apportioning the basis for his Units among all of 
the Trust's assets ratably according to their values as of the valuation
date nearest the date on which he purchased his Units).  A 
Unitholder's basis in his Units and the basis for his fractional
interest in each Trust asset must be reduced by the amount of his aliquot 
share of interest received, if any, on Bonds delivered after the
Unitholder's settlement date to the extent that such interest accrued
on the Bonds during the period from the Unitholder's settlement date
to the date such Bonds are delivered to the Trust and must be reduced 
annually for amortization of premiums, if any, on obligations held by the
Trust.
 
    Based upon the foregoing, we are of the opinion, for Maryland State
and local tax purposes, that:

    (1)  The Trust will not be recognized as an association taxable as a
corporation, and the income of the Trust will be treated as the income of
the Unitholders.

    (2)  Interest received by the Trust on obligations of the State of
Maryland or its political subdivisions and authorities, or of territories
and possessions of the United States (to the extent federal law exempts
interest on obligations of territories or possessions of the United States
from state taxation) will be exempt from Maryland state and local income
taxes when allocated to an individual Unitholder of the Trust.

    (3)  Interest or profit realized from a sale or exchange of bonds
issued by the State of Maryland or one of its political subdivisions
derived from the Trust by a financial institution, as defined in Section
8-101(c) of the Tax-General Article of the Annotated Code of Maryland,
will be subject to the Maryland state franchise tax on financial institutions,
except to the extent such interest is expressly exempt from the Maryland state
franchise tax by the statutes which authorize the isuance of such Bonds
(See Section 8-204 of the Tax-General Article of the Annotated Code of
Maryland).


    (4)  A Unitholder will not be subject to Maryland state or local
income tax with respect to gain realized when Bonds held in the Trust are 
sold, redeemed or paid at maturity, except with respect to gain realized upon 
a sale, redemption, or payment at maturity of such Bonds as are issued by or 
on behalf of the United States' territories or possessions, their political
subdivisions and authorities; such gain will equal the proceeds of sale, 
redemption or payment, less the tax basis of the Bond (adjusted to reflect 
(a) the amortization of Bond premium or discount, and (b) the deposit in the 
Trust after the Unitholder's settlement date of Bonds with accrued
interest).
 
    (5)  Gain realized by a Unitholder from the redemption, sale or
other disposition of a Unit will be subject to Maryland state income tax
and Maryland local income tax except in the case of individual Unitholders
who are not Maryland residents.

    (6)  Maryland presently imposes an income tax on items of tax preference
with reference to such items as defined in the Code.  For taxable years
beginning after December 31, 1986, interest paid on certain private activity
bonds constitutes a tax preference pursuant to Section 57 (a) (5) of the
Code.  Accordingly, if the Maryland Series holds such bonds, 50% of the
interest would be taxable by Maryland under the provisions of Section
10-205(f) of the Tax-General Article of the Annotated Code of Maryland,
subject to a threshold amount.

    (7)  Interest on indebtedness incurred or continued (directly or
indirectly) by a Unitholder to purchase or carry Units in the Trust
will not be deductible for Maryland State or local income tax purposes.

    (8)  Trust Units will be subject to Maryland inheritance and estate tax 
only if held by Maryland residents.

    (9)  Neither the Bonds nor the Units will be subject to the Maryland
personal property tax, sales tax or use tax.

    This letter is not to be construed as a prediction of a favorable outcome
with respect to any issue for which no favorable prediction is made herein, or
as a guaranty of any tax result, or as offering an assurance or guaranty that 
a Maryland state or local taxing authority might not differ with our 
conclusions, or raise other questions or issues upon audit, or that such 
action may not be judicially sustained.

    We have not examined any of the Bonds to be deposited in the Fund and held
by the Trust, and express no opinion as to whether the interest on any such
Bonds would in fact be tax-exempt if directly received by a Unitholder;
nor have we made any review of the proceedings relating to the issuance of the
Bonds or the basis for the bond counsel opinions or the opinions of Messrs.
Chapman and Cutler referred to herein.

<PAGE>

    We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to our firm in such Registration
Statement and the Preliminary Prospectus included therein.  In giving
such consent, we do not thereby admit that we are within the category of 
persons whose consent is required by Section 7 of the Securities Act of 1933, 
as amended, and the rules and regulations thereunder.


_______________________
(N.1)It is understood that, from time to time, some uninvested cash may be 
held in the Trust.



(N.2)Section 2.01 of the Indenture provides that the Depositor may deposit
delivery statements relating to contracts for the purchase of Bonds (rather 
than actual Bonds) into the Trust.  We understand that, should any such 
contract to purchase Bonds fail, the Depositor intends to pay to all 
Unitholders an amount equivalent to the interest that would have been
paid to such Unitholders had the contract not failed.  Such amount
will constitute taxable income for Federal income tax purposes.

Very truly yours,



VENABLE, BAETJER AND HOWARD



<PAGE>

EXHIBIT 3.3


(ON SHERMAN & HOWARD L.L.C. LETTERHEAD)

9/07/95


Nuveen Tax-Exempt Unit Trust,
Series 823
c/o Chase Manhattan Bank, N.A.
770 Broadway
New York, New York  10003

RE:  
    Colorado Insured Trust 60

Ladies and Gentlemen:

    We have acted as special counsel to the Nuveen Tax-Exempt Unit Trust, 
Series 823 (the "Fund") with respect to certain applications of the
income tax law of the State of Colorado to the above captioned Trust(s)
created as part of the Fund (the "Colorado Trust(s)") and to the holders of
certificates or registered holders of book entry positions evidencing
ownership of fractional undivided interest ("Units") in the Colorado Trust(s)
who are residents of the State of Colorado ("Colorado Unitholders").

    In this connection, we have examined the form of an opinion of Chapman and
Cutler, counsel for John Nuveen & Co. Incorporated, the Depositor, to be dated
today, as to the federal tax status of the several constituent trusts of the
Fund and the holders of Units, including the Colorado Trust(s) and the
Colorado Unitholders. Chapman and Cutler has advised us that its opinion, as
executed and delivered, will be in all material respects identical to such
form.  We have also examined such pertinent materials and matters of law as
we deemed necessary in order to enable us to express the opinions hereinafter
set forth.

    It is our understanding that a Colorado Trust will consist of
obligations which were issued by the State of Colorado or its political
subdivisions or by the United States or possessions of the United States,
including Puerto Rico, the Virgin Islands and Guam ("Bonds").  The following
opinion assumes that the Colorado Trust(s) will have no income other than
(i) interest income on the Bonds, (ii) insurance proceeds, if any, referred
to in paragraph (3) below, and (iii) gain on the disposition of such Bonds.

    Based on the foregoing and, with your permission, in reliance upon the
opinion of Chapman and Cutler referred to above, it is our opinion that
application of existing Colorado income tax law would be as follows:

    The Chapman and Cutler opinion concludes that each trust, including the
Colorado Trust(s), will be governed by the provisions  of subchapter J of
chapter 1, Internal Revenue Code of 1986 (the "Code").  Although there are no
Colorado income tax statutes similar to subchapter J of chapter 1 of the Code,
the Colorado statutory provisions generally operate to reach the same result
that is reached under the federal system.  The income, deduction, and credit
items directly reportable by the "owner" of a trust under the federal rules
are also directly reportable by that same person under Colorado rules.
Conversely, items of income, deduction, and credit not reportable for federal
purposes typically are not reported for Colorado purposes.  For resident
individuals, estates, and trusts, Colorado law imposes a tax on federal
taxable income, as defined in the Code, with specific modifications. For
corporations, a tax is imposed on net income derived from sources within
Colorado.  A corporation's net income is defined as federal taxable income,
again with certain modifications. There are two modifications relevent to
this opinion. First, interest income less amortization of premium on
obligations of any state or any politcal subdivision thereof must be added
to federal taxable income; however, interest income on obligations of the
State of Colorado or a political subdivision thereof which are issued on or
after May 1, 1980 is specifically excluded from this modification.  Interest
income on obligations of the State of Colorado or a political subdivision
thereof which were issued before May 1, 1980 is also excluded from this
modification to the extent that such interest is specifically exempt from
income taxation under the laws of the State of Colorado authorizing the
issuance of such obligations.  The second relevent modification is that
interest income on obligations of the United States and its possessions is
subtracted from federal taxable income to the extent it was included in
federal taxable income.

    Colorado also imposes on individuals, estates, and trusts an alternative
minimum tax based on the federal alternative minimum taxable income determined
pursuant to Section 55 of the Code.  As with the modifications to federal
taxable income pertaining to interest income on Colorado exempt obligations,
interest income on obligations of the State of Colorado and political
sudivisions thereof which are issued on or after May 1, 1980, or which were
issued prior to May 1, 1980 but have interest specifically exempt from income
taxation under the Colorado laws authorizing the issuance of such obligations,
is not included in the modification that otherwise requires that interest
income from obligations of states or political subdivisions thereof be added
to federal alternative minimum taxable income.  Furthermore, interest income
on obligations of the United States and its possessions is subtracted from
federal alternative minimum taxable income.

    Because Colorado income tax law is based upon the federal law and in light
of the opinion of Chapman and Cutler, the Colorado Trust(s) will not be
association(s) taxable as  corporation(s) for purposes of Colorado income
taxation.

<PAGE>

    With respect to Colorado Unitholders, in view of the relationship
between federal and Colorado tax computations described above and the opinion 
of Chapman and Cutler referred to above:

    1.   Each Colorado Unitholder will be treated as owning a share of
         each asset of the Colorado Unitholder's respective Colorado Trust for
         Colorado income tax purposes, in the proportion that the number of
         Units of such Colorado Trust held by the Unitholder bears to the
         total number of outstanding Units of the Colorado Trust, and the
         income of the Colorado Trust will therefore be treated as the income
         of each Colorado Unitholder under Colorado law in the proportion
         described;

    2.   Interest on Bonds that would not be included in the base subject to
         Colorado income tax or Colorado alternative minimum tax when paid
         directly to a Colorado Unitholder will not be included in the base
         subject to Colorado income tax or alternative minimum tax when
         received by a Colorado Trust and attributed to such Colorado
         Unitholder and when distributed to such Colorado Unitholder;

    3.   Proceeds paid under an insurance policy, if any, issued to the issuer
         of the Bonds involved, to the Depositor prior to deposit of the Bonds
         in a Colorado Trust, or to a Colorado Trust, which proceeds
         represent maturing interest on defaulted Bonds and which proceeds
         would not be included in the base subject to Colorado income tax or
         Colorado alternative minimum tax when paid directly to a Colorado
         Unitholder will not be included in the base subject to Colorado
         income and alternative minimum tax when received by a Colorado
         Trust and attributed to such Colorado Unitholder and when
         distributed to such Colorado Unitholder;

    4.   Each Colorado Unitholder will realize gain or loss taxable
         in Colorado when the Colorado Unitholder's respective Colorado
         Trust disposes of a Bond (whether by sale, exchange, redemption,
         or payment at maturity) or when the Colorado Unitholder redeems or
         sells Units at a price that differs from original cost as adjusted
         for amortization of bond discount or premium and other basis
         adjustments (including any basis reduction that may be required to
         reflect a Colorado Unitholder's share of interest, if any, accruing
         on Bonds during the interval between the Colorado Unitholder's
         settlement date and the date such Bonds are delivered to the Colorado
         Trust, if later);

    5.   Tax cost reduction requirements relating to amortization of bond
         premium may, under some circumstances, result in Colorado
         Unitholders realizing gain taxable in Colorado when their
         Units are sold or redeemed for an amount equal to or less than their
         original cost; and
 
    6.   If interest on indebtedness incurred or continued by a Colorado
         Unitholder to purchase Units in the Colorado Trust is not
         deductible for federal income tax purposes, it will not be
         deductible for Colorado income tax purposes.


    We have not examined any of the Bonds to be deposited in the Colorado
Trusts(s) and express no opinion as to whether the interest (or, if appli-
cable, insurance proceeds representing interest) on any such Bonds would in
fact be included in the base subject to Colorado income tax or Colorado
alternative minimum tax if directly received by a Colorado Unitholder.

    We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement (File No. 33-62325) relating to the Units referred
to above and to the use of our name and the reference to our firm in such
Registration Statement, and in the related Prospectus, under the "Tax Status"
heading for each Colorado Trust in the Fund.  In addition, we authorize 
Chase Manhattan Bank, N.A. to rely upon this opinion in its capacity
as Trustee of the Fund.

Very truly yours,


SHERMAN & HOWARD L.L.C.


<PAGE>

EXHIBIT 3.3


(ON DICKINSON, WRIGHT, MOON, VAN DUSEN & FREEMAN LETTERHEAD)

9/07/95




John Nuveen & Co. Incorporated
333 W. Wacker Drive
Chicago, Illinois  60606

Chase Manhattan Bank, N.A.
770 Broadway
New York, New York  10003

Re:  Nuveen Tax-Exempt Unit Trust, Series 823
 
Michigan Insured Trust 62

Gentlemen:

    We have acted as special Michigan counsel to the captioned Trust(s)(the
"Michigan Trust(s)") of Nuveen Tax-Exempt Unit Trust - Series 823
(the "Fund") concerning a Registration Statement (No. 33-62325) on Form S-6
under the Securities Act of 1933, as amended, covering the issuance by the
Michigan Trust(s) of Units of fractional undivided interest in the Michigan
Trust(s) (the "Units").

    The Michigan Trust(s) has (have) been organized under a Trust Indenture
and Agreement dated as of 9/07/95 between John Nuveen & Co. Incorporated, as
Depositor ("Nuveen"), and Chase Manhattan Bank, N.A., as Trustee
("Trustee").  The Fund will contain several trusts, including the Michigan
Trust(s), which will issue the Units.  The Units of the Michigan Trust(s)
will be purchased by various investors (the "Unitholders").  Each Unit of
a Michigan Trust represents a fractional undivided interest in a Michigan
Trust.  The Michigan Trust(s) and the other trusts each will be administered
as a distinct entity with separate certificates, investments, expenses, books
and records.  Further, Nuveen, the Trustee and Municipal Bond Investors
Assurance Corporation will enter into an agreement for any Michigan Insured
Trust providing for the provision of insurance (the "Insurance") against the
nonpayment of principal and interest when due.

    The assets of a Michigan Trust will consist of interest-bearing
obligations issued by or on  behalf of the State of Michigan, and counties,
municipalities, authorities and political subdivisions thereof, and, in
limited instances, bonds issued by Puerto Rico, the Virgin Islands, Guam, the
Northern Mariana Islands or possessions of the United States (the "Bonds").
Distributions of the interest received by a Michigan Trust will generally
be made semi-annually unless the Unitholder elects otherwise.
We have been advised by Nuveen that in the opinion of bond counsel to each
issuer, the interest on all Bonds in a Michigan Trust is exempt from
Federal income tax under existing law.
 
    Chapman and Cutler, counsel for Nuveen, has advised us that for federal
income tax purposes a Michigan Trust will not be taxable as an association
but will be governed by the provisions of Subchapter J (relating to Trusts)
of Chapter 1 of the Internal Revenue Code of 1986, as amended.  Each
Unitholder will be considered the owner of a pro rata portion of the
Unitholder's repective Michigan Trust and will be subject to tax on the income
therefrom under the provisions of Subpart E of Subchapter J of Chapter 1 of
the Internal Revenue Code of 1986, as amended.  A Michigan Trust itself will
not be subject to federal income taxes.  For federal income tax purposes, each
item of income from a Michigan Trust will have the same character in the hands
of a Unitholder as it would have in the hands of the Trustee.  Accordingly, to
the extent that the income of a Michigan Trust consists of interest excludable
from gross income under Section 103 of the Internal Revenue Code of 1986, as
amended, such income will be excludable from federal gross income of the
Unitholder.  In addition, if Insurance has been obtained, Chapman and Cutler
has examined the form of the policy of Insurance being issued with respect to
the Bonds and based thereon has advised us that any amounts paid under the
Insurance representing maturing interest on defaulted obligations held by the
Trustee will be excludable from federal gross income if, and to the same
extent as, such interest would have been so excludable if paid by the
respective issuer.

    Based upon the above information which, with Nuveen's consent, we have
relied upon, it is our opinion that for Michigan state and local tax pur-
poses, a Michigan Trust will be recognized as a trust not taxable as a
corporation.

    We are further of the opinion that under existing law:

    Under the Michigan income tax act, the Michigan single business tax act, 
the Michigan intangibles tax act, the Michigan city income tax act (which
authorizes the only income tax ordinance which may be adopted by cities in 
Michigan), and under the law which authorizes a "first class" school district
to levy an excise tax upon income, the Michigan Trust(s) will not be subject
to tax.  The income of a Michigan Trust will be treated as the income of the
Unitholders and be deemed to have been received by them when received
by their respective Michigan Trust.

    Interest on the Bonds in a Michigan Trust which is exempt from Federal
income tax is exempt from Michigan state and local income taxes and from the
Michigan single business tax.  Further, any amounts paid under any Insurance
representing maturing interest on defaulted obligations held by the Trustee
will be excludable from Michigan state and local income taxes and from the
Michigan single business tax if, and to the same extent as, such interest
would have been so excludable if paid by the respective issuer.
 
    For purposes of the foregoing Michigan tax laws (corporations and
financial institutions are not subject to the Michigan income tax), each 
Unitholder will be considered to have received his pro rata share of
Bond interest when it is received by the Unitholder's respective Michigan
Trust, and each Unitholder will have a taxable event when the Unitholder's
respective Michigan Trust disposes of a Bond (whether by sale, exchange,
redemption or payment at maturity) or when the Unitholder redeems or sells
Units.  Due to the requirement that tax cost be reduced to reflect
amortization of bond premium, under some circumstances a Unitholder may
realize taxable gain when Units are sold or redeemed for an amount equal to,
or less than, their original cost.  The tax cost of each Unit to a Unitholder
will be allocated for purposes of these Michigan tax laws in the same manner
as the cost is allocated for Federal income tax purposes.

<PAGE>

    Pursuant to the position of the Michigan Department of Treasury in a
bulletin dated December 19, 1986, the portion of the tax exempt bond fund
represented by the Bonds will be exempt from the Michigan Intangibles
Tax.  The Department of Treasury has not indicated a position with respect
to treatment of amounts paid under a policy of insurance with respect to
maturing interest on defaulted obligations (which amounts would have been
exludable if paid by the respective issuer)  for purposes of determining
the income base for the Michigan Intangibles Tax.

    If a Unitholder is subject to the Michigan single business tax (i.e.
is engaged in a "business activity" as defined in the Michigan single
business tax act) and has a taxable event for Federal income tax purposes
when a Michigan Trust sells or exchanges Bonds or the Unitholder
sells or exchanges Units, such event may impact on the adjusted tax base upon
which the single business tax is computed.  Any capital gain or loss realized
from such taxable event which was included in the computation of the
Unitholder's Federal taxable income, plus the portion, if any, of such
capital gain excluded in such computation and minus the portion, if any, of
such capital loss not deducted in such computation for the year the loss
occurred, will be included in the adjusted tax base.  The adjusted tax base
of any person other than a corporation is affected by any gain or loss
realized from the taxable event only to the extent that the resulting Federal
taxable income is derived from "business activity".
 
    We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement (File No. 33-62325) relating to the Units and to
the reference to our Firm as special Michigan counsel in the Registration 
Statement and in the related Prospectus.

Very truly yours,


DICKINSON, WRIGHT, MOON, VAN DUSEN & FREEMAN 


<PAGE>


EXHIBIT 4.3

(ON CARTER LEDYARD & MILBURN LETTERHEAD)

9/07/95


Nuveen Tax-Exempt Unit Trust, Series 823
c/o John Nuveen & Co. Incorporated,
as Depositor of Nuveen Tax-Exempt Unit
Trust, Series 823
333 W. Wacker Drive
Chicago, Illinois  60606

RE:  Nuveen Tax-Exempt Unit Trust, Series 823

Dear Sirs:

    We hereby consent to the reference to our firm under the caption "What is
the Tax Status of Unitholders?" in the Registration Statement and
related Prospectus of Nuveen Tax-Exempt Unit Trust, Series 823 for the
registration of units of fractional undivided interest in the Fund in the 
aggregate principal amount as set forth in the Closing Memorandum dated 
today's date.
 
Very truly yours,


CARTER, LEDYARD & MILBURN
 


                                         Exhibit 6.1


                    John Nuveen & Co. Incorporated
                         Officers and Directors

                                   A.
Officers:                          

Richard J. Franke                  Chairman, Board of Directors, Chief Executive
                                    Officer and Director
Donald E. Sveen                    President, Chief Operating Officer and
                                    Director
Anthony T. Dean                    Executive Vice President and Director
Timothy R. Schwertfeger            Executive Vice President and Director
John P. Amboian                    Executive Vice President and Chief Financial
                                    Officer
O. Walter Renfftlen                Vice President and Controller
Anna R. Kucinskis                  Vice President
George P. Thermos                  Vice President
H. William Stabenow                Vice President and Treasurer
Thomas C. Muntz                    Vice President
Robert B. Kuppenheimer             Vice President
Paul C. Williams                   Vice President
Michael G. Gaffney                 Vice President
Robert D. Freeland                 Vice President
Bradford W. Shaw, Jr.              Vice President
Stuart W. Rogers                   Vice President
James J. Wesolowski                Vice President, General Counsel and Secretary
Stephen D. Foy                     Vice President, Assistant Controller and
                                    Assistant Secretary
Larry W. Martin                    Assistant Vice President, Assistant General 
                                    Counsel and Assistant Secretary
Gifford R. Zimmerman               Assistant Vice President, Assistant General
                                    Counsel and Assistant Secretary
Kenneth C. Dunn                    Vice President and Assistant General Counsel

Directors:
Richard J. Franke                  Chairman, Board of Directors, Chief Executive
                                    Officer and Director
Donald E. Sveen                    President, Chief Operating Officer and 
                                    Director
Anthony T. Dean                    Executive Vice President and Director
Timothy R. Schwertfeger            Executive Vice President and Director

     The Principal business address of Messrs. Franke, Sveen, Dean and
Schwertfeger is 333 West Wacker Drive, Chicago, Illinois.


                                   B.

     Each officer and director of John Nuveen & Co. Incorporated has been an
officer, director or employee of the firm, or its corporate predecessor, for 
more than five years last past, except as follows:

Mr. John P. Amboian became Executive Vice President and Chief Financial 
Officer in June 1995.  From June 1993 until such time he served as Senior
Vice President, Finance, Strategy & Systems for the Miller Brewing Company.
From August 1984 until such time he served as Vice President, Finance Planning
& Analysis for Kraft Foods, Inc.

Mr. Kenneth C. Dunn became Vice President, Assistant General Counsel and
Assistant Secretary in May 1995.  From January 1990 until such time he served
as a Partner with the law firm of Gardner, Carton & Douglas.

September 1, 1995
Chicago, Illinois



<PAGE>

Exhibit 7.1

This Power of Attorney is applicable only to registration statements, 
amendments of registration statements, applications for registration and 
similar or related documents pertaining to any series of the Nuveen
Tax-Exempt Unit Trust, Nuveen Tax-Exempt Unit Trust - State Series, 
Nuveen Tax-Exempt Unit Trust - Intermediate Series, Nuveen Tax-Exempt
Unit Trust - Discount Series and Nuveen Tax-Exempt Unit Trust - Insured
Series whether or not in existence at the date hereof.


     POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned the Chief Financial
Officer and an Executive Vice President of John Nuveen & Co. Incorporated,
a Delaware corporation, hereby constitutes and appoints Larry W. Martin, 
Morrison C. Warren, James J. Wesolowski and Gifford R. Zimmerman, and each
of them (with full power to act alone) his true and lawful attorney-in-fact
and agent, for him and on his behalf and in his name, place and stead, in
any and all capacitites, to sign, execute and affix his seal thereto and file
one or more Registration Statements on Form S-6 under the Securities Act of 
1933 or any successor form required to be filed by unit investment trusts 
under the Securities Act of 1933, including any amendment or amendments 
thereto, with all exhibits, Form N-8B-2 under the Investment Company Act of
1940 or any successor form including any amendment or amendments thereto,
with all exhibits, and any and all other documents required to be filed
with respect to any series of the Nuveen Tax-Exempt Unit Trust, Nuveen
Tax-Exempt Unit Trust - State Series, Nuveen Tax-Exempt Unit Trust 
Intermediate Series, Nuveen Tax-Exempt Unit Trust - Discount Series and
the Nuveen Tax Exempt Unit Trust - Insured Series whether or not in 
existence at the date hereof with any regulatory authority, federal or state,
relating to the registration thereof, granting unto said attorneys, and each 
of them, full power and authority to do and perform each and every act
and thing requisite and necessary to be done in and about the premises
in order to effectuate the same as fully to all intents and purposes as he 
might or could do if personally present, hereby ratifying and confirming
all that said attorneys-in-fact and agents, or any of them may lawfully do or
cause to be done by virtue hereof.

IN WITNESS WHEREOF, the undersigned, Chief Financial Officer and Executive
Vice President of John Nuveen & Co. Incorporated, has hereunto set his hand
this 31 day of July, 1995.

___________________
Signature

John P. Amboian
- --------------------
Print Name

State of Illinois)
                 )
County of Cook   )

On this 31 of July, 1995, John P. Amboian personally appeared before me,
a Notary Public in and for said County and State, who is known to me to be the
person whose name and signature is affixed to the foregoing Power of Attorney
and who acknowledged the same to be his voluntary act and deed for the intent
and purposes therein set forth.

Olivia Rubio
____________________
Notary Public

My commission Expires 2/25/97

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the Maryland
Traditional Trust 310 which is incorporated in the Prospectus dated September 7,
1995 and is qualified in its entirety by reference to such prospectus.
</LEGEND>
 
       
<S>                                                <C>
<PERIOD-TYPE>                                      OTHER
<FISCAL-YEAR-END>                                               Aug-31-1996
<PERIOD-END>                                                    Aug-31-1996
<INVESTMENTS-AT-COST>                                             3,346,963
<INVESTMENTS-AT-VALUE>                                            3,357,003
<RECEIVABLES>                                                        39,570
<ASSETS-OTHER>                                                            0
<OTHER-ITEMS-ASSETS>                                                      0
<TOTAL-ASSETS>                                                    3,401,973
<PAYABLE-FOR-SECURITIES>                                                  0
<SENIOR-LONG-TERM-DEBT>                                                   0
<OTHER-ITEMS-LIABILITIES>                                            39,570
<TOTAL-LIABILITIES>                                                  39,570
<SENIOR-EQUITY>                                                           0
<PAID-IN-CAPITAL-COMMON>                                                  0
<SHARES-COMMON-STOCK>                                                35,000
<SHARES-COMMON-PRIOR>                                                     0
<ACCUMULATED-NII-CURRENT>                                                 0
<OVERDISTRIBUTION-NII>                                                    0
<ACCUMULATED-NET-GAINS>                                                   0
<OVERDISTRIBUTION-GAINS>                                                  0
<ACCUM-APPREC-OR-DEPREC>                                                  0
<NET-ASSETS>                                                      3,357,003
<DIVIDEND-INCOME>                                                         0
<INTEREST-INCOME>                                                         0
<OTHER-INCOME>                                                            0
<EXPENSES-NET>                                                            0
<NET-INVESTMENT-INCOME>                                                   0
<REALIZED-GAINS-CURRENT>                                                  0
<APPREC-INCREASE-CURRENT>                                                 0
<NET-CHANGE-FROM-OPS>                                                     0
<EQUALIZATION>                                                            0
<DISTRIBUTIONS-OF-INCOME>                                                 0
<DISTRIBUTIONS-OF-GAINS>                                                  0
<DISTRIBUTIONS-OTHER>                                                     0
<NUMBER-OF-SHARES-SOLD>                                                   0
<NUMBER-OF-SHARES-REDEEMED>                                               0
<SHARES-REINVESTED>                                                       0
<NET-CHANGE-IN-ASSETS>                                                    0
<ACCUMULATED-NII-PRIOR>                                                   0
<ACCUMULATED-GAINS-PRIOR>                                                 0
<OVERDISTRIB-NII-PRIOR>                                                   0
<OVERDIST-NET-GAINS-PRIOR>                                                0
<GROSS-ADVISORY-FEES>                                                     0
<INTEREST-EXPENSE>                                                        0
<GROSS-EXPENSE>                                                           0
<AVERAGE-NET-ASSETS>                                                      0
<PER-SHARE-NAV-BEGIN>                                                 95.91
<PER-SHARE-NII>                                                           0
<PER-SHARE-GAIN-APPREC>                                                   0
<PER-SHARE-DIVIDEND>                                                      0
<PER-SHARE-DISTRIBUTIONS>                                                 0
<RETURNS-OF-CAPITAL>                                                      0
<PER-SHARE-NAV-END>                                                       0
<EXPENSE-RATIO>                                                           0
<AVG-DEBT-OUTSTANDING>                                                    0
<AVG-DEBT-PER-SHARE>                                                      0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the Colorado
Insured Trust 60 which is incorporated in the Prospectus dated September 7, 1995
and is qualified in its entirety by reference to such prospectus.
</LEGEND>
 
       
<S>                                                <C>
<PERIOD-TYPE>                                      OTHER
<FISCAL-YEAR-END>                                               Aug-31-1996
<PERIOD-END>                                                    Aug-31-1996
<INVESTMENTS-AT-COST>                                             3,317,098
<INVESTMENTS-AT-VALUE>                                            3,337,208
<RECEIVABLES>                                                        51,458
<ASSETS-OTHER>                                                            0
<OTHER-ITEMS-ASSETS>                                                      0
<TOTAL-ASSETS>                                                    3,394,166
<PAYABLE-FOR-SECURITIES>                                                  0
<SENIOR-LONG-TERM-DEBT>                                                   0
<OTHER-ITEMS-LIABILITIES>                                            51,458
<TOTAL-LIABILITIES>                                                  51,458
<SENIOR-EQUITY>                                                           0
<PAID-IN-CAPITAL-COMMON>                                                  0
<SHARES-COMMON-STOCK>                                                35,000
<SHARES-COMMON-PRIOR>                                                     0
<ACCUMULATED-NII-CURRENT>                                                 0
<OVERDISTRIBUTION-NII>                                                    0
<ACCUMULATED-NET-GAINS>                                                   0
<OVERDISTRIBUTION-GAINS>                                                  0
<ACCUM-APPREC-OR-DEPREC>                                                  0
<NET-ASSETS>                                                      3,337,208
<DIVIDEND-INCOME>                                                         0
<INTEREST-INCOME>                                                         0
<OTHER-INCOME>                                                            0
<EXPENSES-NET>                                                            0
<NET-INVESTMENT-INCOME>                                                   0
<REALIZED-GAINS-CURRENT>                                                  0
<APPREC-INCREASE-CURRENT>                                                 0
<NET-CHANGE-FROM-OPS>                                                     0
<EQUALIZATION>                                                            0
<DISTRIBUTIONS-OF-INCOME>                                                 0
<DISTRIBUTIONS-OF-GAINS>                                                  0
<DISTRIBUTIONS-OTHER>                                                     0
<NUMBER-OF-SHARES-SOLD>                                                   0
<NUMBER-OF-SHARES-REDEEMED>                                               0
<SHARES-REINVESTED>                                                       0
<NET-CHANGE-IN-ASSETS>                                                    0
<ACCUMULATED-NII-PRIOR>                                                   0
<ACCUMULATED-GAINS-PRIOR>                                                 0
<OVERDISTRIB-NII-PRIOR>                                                   0
<OVERDIST-NET-GAINS-PRIOR>                                                0
<GROSS-ADVISORY-FEES>                                                     0
<INTEREST-EXPENSE>                                                        0
<GROSS-EXPENSE>                                                           0
<AVERAGE-NET-ASSETS>                                                      0
<PER-SHARE-NAV-BEGIN>                                                 95.35
<PER-SHARE-NII>                                                           0
<PER-SHARE-GAIN-APPREC>                                                   0
<PER-SHARE-DIVIDEND>                                                      0
<PER-SHARE-DISTRIBUTIONS>                                                 0
<RETURNS-OF-CAPITAL>                                                      0
<PER-SHARE-NAV-END>                                                       0
<EXPENSE-RATIO>                                                           0
<AVG-DEBT-OUTSTANDING>                                                    0
<AVG-DEBT-PER-SHARE>                                                      0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the Michigan
Insured Trust 62 which is incorporated in the Prospectus dated September 7, 1995
and is qualified in its entirety by reference to such prospectus.
</LEGEND>
 
       
<S>                                                <C>
<PERIOD-TYPE>                                      OTHER
<FISCAL-YEAR-END>                                               Aug-31-1996
<PERIOD-END>                                                    Aug-31-1996
<INVESTMENTS-AT-COST>                                             3,282,267
<INVESTMENTS-AT-VALUE>                                            3,293,641
<RECEIVABLES>                                                        51,059
<ASSETS-OTHER>                                                            0
<OTHER-ITEMS-ASSETS>                                                      0
<TOTAL-ASSETS>                                                    3,349,800
<PAYABLE-FOR-SECURITIES>                                                  0
<SENIOR-LONG-TERM-DEBT>                                                   0
<OTHER-ITEMS-LIABILITIES>                                            51,059
<TOTAL-LIABILITIES>                                                  51,059
<SENIOR-EQUITY>                                                           0
<PAID-IN-CAPITAL-COMMON>                                                  0
<SHARES-COMMON-STOCK>                                                35,000
<SHARES-COMMON-PRIOR>                                                     0
<ACCUMULATED-NII-CURRENT>                                                 0
<OVERDISTRIBUTION-NII>                                                    0
<ACCUMULATED-NET-GAINS>                                                   0
<OVERDISTRIBUTION-GAINS>                                                  0
<ACCUM-APPREC-OR-DEPREC>                                                  0
<NET-ASSETS>                                                      3,293,641
<DIVIDEND-INCOME>                                                         0
<INTEREST-INCOME>                                                         0
<OTHER-INCOME>                                                            0
<EXPENSES-NET>                                                            0
<NET-INVESTMENT-INCOME>                                                   0
<REALIZED-GAINS-CURRENT>                                                  0
<APPREC-INCREASE-CURRENT>                                                 0
<NET-CHANGE-FROM-OPS>                                                     0
<EQUALIZATION>                                                            0
<DISTRIBUTIONS-OF-INCOME>                                                 0
<DISTRIBUTIONS-OF-GAINS>                                                  0
<DISTRIBUTIONS-OTHER>                                                     0
<NUMBER-OF-SHARES-SOLD>                                                   0
<NUMBER-OF-SHARES-REDEEMED>                                               0
<SHARES-REINVESTED>                                                       0
<NET-CHANGE-IN-ASSETS>                                                    0
<ACCUMULATED-NII-PRIOR>                                                   0
<ACCUMULATED-GAINS-PRIOR>                                                 0
<OVERDISTRIB-NII-PRIOR>                                                   0
<OVERDIST-NET-GAINS-PRIOR>                                                0
<GROSS-ADVISORY-FEES>                                                     0
<INTEREST-EXPENSE>                                                        0
<GROSS-EXPENSE>                                                           0
<AVERAGE-NET-ASSETS>                                                      0
<PER-SHARE-NAV-BEGIN>                                                 94.10
<PER-SHARE-NII>                                                           0
<PER-SHARE-GAIN-APPREC>                                                   0
<PER-SHARE-DIVIDEND>                                                      0
<PER-SHARE-DISTRIBUTIONS>                                                 0
<RETURNS-OF-CAPITAL>                                                      0
<PER-SHARE-NAV-END>                                                       0
<EXPENSE-RATIO>                                                           0
<AVG-DEBT-OUTSTANDING>                                                    0
<AVG-DEBT-PER-SHARE>                                                      0
        

</TABLE>


<PAGE>

                                   MEMORANDUM

                 Nuveen Tax-Exempt Unit Trust, Series 823
                               File No. 33-62325


    The Prospectus and the Indenture filed with Amendment No. 1 of the
Registration Statement on Form S-6 have been revised to reflect information
regarding the execution of the Indenture and the deposit of bonds on 9/07/95,
and to set forth certain statistical data based thereon.  In addition, there 
are a number of other changes from the Prospectus as originally filed to which
reference is made, including the increase in the size of the Fund, a
corresponding increase in the number of Units and a change in the individual
trusts constituting the Fund.  All references to the Units, prices and related
statistical data will apply to each trust of the Fund and the Units thereof
individually.

    Except for such updating, an effort has been made to set forth below each 
of the changes and also to reflect the same by marking the Prospectus 
transmitted with the Amendment.  Also, differences between the Final 
Prospectus relating to the previous series of the Nuveen Tax-Exempt Unit 
Trust and the subject Prospectus have been indicated.

                                    FORM S-6

    FACING SHEET.  The file number is now shown.

                                 THE PROSPECTUS

     PART A-PAGE 2.       The "Estimated Long-Term Return" and "Estimated 
Current Return" to Unitholders under each Trust under each of the distribution
plans are stated.
     PART A-PAGES 1 - 2.  Essential information for each of the Trusts, 
including applicable footnotes, has been completed for this Series.

     PART A-PAGES 1 - 2.  The date of the Indenture has been inserted in Section
1 along with the size and number of Units of each of the Trusts.

     PART A-PAGES 1 - 6 et seq. The following information for each Trust appears
on the pages relating to such trust:

         The estimated daily accrual of interest under the plans of
         distribution for each of the Trusts

         Data regarding the composition of the portfolio of each
         Trust

         Disclosure regarding the states' economic and legislative
         matters relevant to investors of state trusts

         Concentrations of issues by purpose in each Trust

         The approximate percentage of the bonds in the
         portfolio of each Trust acquired in distributions where
         the Sponsor was either the sole underwriter or manager
         or member of the underwriting syndicate

         The percentage of "when issued" bonds in the portfolio
         of each Trust

         The schedule of investments for each Trust, including
         the notes thereto

         Descriptions of the opinions of the special tax
         counsel for state trusts

         The Record Dates and Distribution Dates for
         interest distributions for each Trust

         The statements of condition for each Trust
         and the accountant's report with regard thereto.

         The amount of the Trustee's Fee

         
CHAPMAN AND CUTLER


Chicago, Illinois

9/07/95


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