NUVEEN TAX EXEMPT UNIT TRUST SERIES 820
497, 1995-08-24
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     CALIFORNIA
     INSURED
     TRUST 253
 
            Estimated Current Return
            5.59% to 5.82%
            as of 08/22/95
 
            Estimated Long Term Return
            5.68% to 5.90%
             50,000 units in a
             diversified $5,000,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67064W 283 Monthly Payment Option
                  67064W 291 Quarterly Payment Option
                  67064W 309 Semi-Annual Payment Option
 
                  Registered in California
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
--------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, CALIFORNIA INSURED TRUST 253
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT AUGUST 23, 1995
--------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  750,000    State of California, Various Purpose General Obligation            2004 at 102          AAA           Aaa
                  Bonds, 6.00% Due 8/1/24.
     550,000    California Statewide Communities Development Authority,            2005 at 102          AAA           Aaa
                  Certificates of Participation (Sutter Health Obligated
                  Group), 6.00% Due 8/15/25.
     750,000    City of Fresno, California, Health Facility Revenue Bonds,         2003 at 102          AAA           Aaa
                  Series 1993B (Holy Cross Health System Corporation),
                  5.625% Due 12/1/15.
     750,000    The City of Los Angeles, California, Wastewater System             2004 at 102          AAA           Aaa
                  Revenue Bonds, Series 1994-A, 5.875% Due 6/1/24.
     750,000    Department of Water and Power of The City of Los Angeles           2003 at 102          AAA           Aaa
                  (California), Electric Plant Refunding Revenue Bonds,
                  Issue of 1993, 5.375% Due 9/1/23. (Original issue discount
                  bonds delivered on or about April 15, 1993 at a price of
                  93.281% of principal amount.)
     500,000    County of Madera, California, Certificates of Participation        2005 at 102          AAA           Aaa
                  (Valley Children's Hospital Project), Series 1995, 6.125%
                  Due 3/15/23.
     375,000    County of San Diego (California), Certificates of                  2004 at 102          AAA           Aaa
                  Participation (1994 Inmate Reception Center and Cooling
                  Plant Financing), 6.25% Due 8/1/24. (Original issue
                  discount bonds delivered on or about November 30, 1994 at
                  a price of 89.526% of principal amount.)
     325,000    The City of San Diego, California, Industrial Development          2003 at 102          AAA           Aaa
                  Revenue Refunding Bonds (San Diego Gas & Electric
                  Company), 1993 Series C, 5.90% Due 9/1/18.
     250,000    City and County of San Francisco, California, Sewer Revenue        2003 at 102          AAA           Aaa
                  Bonds, Series 1995A, 5.95% Due 10/1/25.
  ----------
  $5,000,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
--------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $    100.24          5.59%            5.63%            5.64%
500-999                 50,000-99,999   4.75          100.08          5.60             5.63             5.65
1,000-2,499           100,000-249,999   4.50           99.82          5.62             5.65             5.67
2,500-4,999           250,000-499,999   4.25           99.56          5.63             5.66             5.68
5,000-9,999           500,000-999,999   3.50           98.79          5.68             5.71             5.73
10,000-24,999     1,000,000- 2,499,999  3.00           98.28          5.71             5.74             5.76
25,000-49,999     2,500,000- 4,999,999  2.50           97.77          5.74             5.77             5.79
50,000 and over    5,000,000 and over   2.00           97.28          5.76             5.80             5.82
</TABLE>
 
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $    100.24          5.68%            5.71%            5.73%
500-999                 50,000-99,999   4.75          100.08          5.68             5.71             5.73
1,000-2,499           100,000-249,999   4.50           99.82          5.70             5.73             5.75
2,500-4,999           250,000-499,999   4.25           99.56          5.71             5.74             5.76
5,000-9,999           500,000-999,999   3.50           98.79          5.76             5.79             5.81
10,000-24,999     1,000,000- 2,499,999  3.00           98.28          5.79             5.82             5.84
25,000-49,999     2,500,000- 4,999,999  2.50           97.77          5.82             5.85             5.87
50,000 and over    5,000,000 and over   2.00           97.28          5.85             5.88             5.90
</TABLE>
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to Date of Deposit. The estimated
    current return for purchases made on such date will be as shown, as long as
    the portfolio size and composition remain the same.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
--------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit 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
California Insured Trust                          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.............  $   .5916(1)                                                  $  5.6074
                                                          --------  $.4671 every month  --------
Quarterly Distribution Plan...........  $   .5916(1)   $   .4698(2)   $  1.4094      $  1.4094        $  5.6394
Semi-Annual Distribution Plan.........  $   .5916(1)   $   .4713(3)                  $  2.8278        $  5.6584
--------------------------------------------------------------------------------------------------------------------
<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.
(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>
    
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.08 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01557 per unit per day.
Consequently, on the first Record Date (10/01/95), accrued interest will total
$0.5916 per unit for the 38-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 10/01/95 is $.5916 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01557              Quarterly - $0.01566
                             Semi-Annual - $0.01571
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
--------------------------------------------------------------------------------
 
                                                          820
<PAGE>
-------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 27.1 years.
The first bond is scheduled to mature in December, 2015, with the last bond
maturity being October, 2025.
 
-------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
-------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
-------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
-------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
-------------------------------------------------------
 
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.
 
-------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
-------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     NEW JERSEY
     INSURED
     TRUST 196
 
            Estimated Current Return
            5.42% to 5.64%
            as of 08/22/95
 
            Estimated Long Term Return
            5.52% to 5.73%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706LA 134 Monthly Payment Option
                  6706LA 142 Quarterly Payment Option
                  6706LA 159 Semi-Annual Payment Option
 
                  Registered in New Jersey
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
--------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, NEW JERSEY INSURED TRUST 196
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT AUGUST 23, 1995
--------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    New Jersey Economic Development Authority, Water Facilities        2004 at 102          AAA           Aaa
                  Revenue Refunding Bonds (Hackensack Water Company
                  Project-1994 Series A), 5.80% Due 3/1/24.
     500,000    The Port Authority of New York and New Jersey, Consolidated        2004 at 101          AAA           Aaa
                  Bonds, Ninety-Fourth Series, 6.00% Due 12/1/14.
     500,000    New Jersey Transportation Trust Fund Authority,                    2005 at 102          AAA           Aaa
                  Transportation System Bonds, 1995 Series B, 5.50% Due
                  6/15/15. (Original issue discount bonds will be delivered
                  on or about August 24, 1995 at a price of 94.788% of
                  principal amount.)(When issued.)
     500,000    The Delaware River and Bay Authority Revenue Bonds (Delaware       2004 at 102          AAA           Aaa
                  and New Jersey), Series 1993, 4.75% Due 1/1/24. (Original
                  issue discount bonds delivered on or about October 27,
                  1993 at a price of 94.631% of principal amount.)
     500,000    The Essex County Improvement Authority (Essex County, New          2005 at 102          AAA           Aaa
                  Jersey), County of Essex General Obligation Lease Revenue
                  Bonds, Series 1995 (Gibraltar Building Project), 5.95% Due
                  12/1/25.
     500,000    The Board of Education of the Great Meadows Regional School        2005 at 102          AAA           Aaa
                  District in the County of Warren, New Jersey, School
                  Bonds, 5.90% Due 1/15/25. (General Obligation Bonds.)
     500,000    The Pollution Control Financing Authority of Salem County          2003 at 102          AAA           Aaa
                  (New Jersey), Pollution Control Revenue Refunding Bonds,
                  1993 Series C (Public Service Electric and Gas Company
                  Project), 5.55% Due 11/1/33.
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
--------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     99.49          5.42%            5.45%            5.47%
500-999                 50,000-99,999   4.75           99.34          5.43             5.46             5.48
1,000-2,499           100,000-249,999   4.50           99.08          5.44             5.47             5.49
2,500-4,999           250,000-499,999   4.25           98.82          5.46             5.49             5.51
5,000-9,999           500,000-999,999   3.50           98.05          5.50             5.53             5.55
10,000-24,999     1,000,000- 2,499,999  3.00           97.55          5.53             5.56             5.58
25,000-49,999     2,500,000- 4,999,999  2.50           97.05          5.56             5.59             5.61
50,000 and over    5,000,000 and over   2.00           96.55          5.58             5.62             5.64
</TABLE>
 
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     99.49          5.52%            5.54%            5.56%
500-999                 50,000-99,999   4.75           99.34          5.52             5.55             5.57
1,000-2,499           100,000-249,999   4.50           99.08          5.54             5.57             5.59
2,500-4,999           250,000-499,999   4.25           98.82          5.55             5.58             5.60
5,000-9,999           500,000-999,999   3.50           98.05          5.60             5.63             5.65
10,000-24,999     1,000,000- 2,499,999  3.00           97.55          5.63             5.66             5.68
25,000-49,999     2,500,000- 4,999,999  2.50           97.05          5.66             5.68             5.70
50,000 and over    5,000,000 and over   2.00           96.55          5.68             5.71             5.73
</TABLE>
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to Date of Deposit. The estimated
    current return for purchases made on such date will be as shown, as long as
    the portfolio size and composition remain the same.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
--------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit 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
New Jersey Insured Trust                          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.............  $   .5688(1)                                                  $  5.3913
                                                          --------  $.4491 every month  --------
Quarterly Distribution Plan...........  $   .5688(1)   $   .4518(2)   $  1.3554      $  1.3554        $  5.4233
Semi-Annual Distribution Plan.........  $   .5688(1)   $   .4533(3)                  $  2.7198        $  5.4423
--------------------------------------------------------------------------------------------------------------------
<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.
(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>
    
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.07 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01497 per unit per day.
Consequently, on the first Record Date (10/01/95), accrued interest will total
$0.5688 per unit for the 38-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 10/01/95 is $.5688 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01497              Quarterly - $0.01506
                             Semi-Annual - $0.01511
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
--------------------------------------------------------------------------------
 
                                                          820
<PAGE>
-------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 27.7 years.
The first bond is scheduled to mature in December, 2014, with the last bond
maturity being November, 2033.
 
-------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
-------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
-------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
-------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
-------------------------------------------------------
 
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.
 
-------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
-------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     NEW YORK
     INSURED
     TRUST 240
 
            Estimated Current Return
            5.54% to 5.77%
            as of 08/22/95
 
            Estimated Long Term Return
            5.62% to 5.84%
             50,000 units in a
             diversified $5,000,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101K 490 Monthly Payment Option
                  67101K 508 Quarterly Payment Option
                  67101K 516 Semi-Annual Payment Option
 
                  Registered in New York, Connecticut & Florida
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
--------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, NEW YORK INSURED TRUST 240
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT AUGUST 23, 1995
--------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  750,000    Dormitory Authority of the State of New York, City                 No Optional          AAA           Aaa
                  University System Consolidated Second General Resolution            Call
                  Revenue Bonds, Series 1993A, 5.75% Due 7/1/18.
     485,000    Dormitory Authority of the State of New York, University of        2004 at 102          AAA           Aaa
                  Rochester, Strong Memorial Hospital Revenue Bonds, Series
                  1994, 5.90% Due 7/1/17.
     750,000    New York Local Government Assistance Corporation (A Public         2004 at 100          AAA           Aaa
                  Benefit Corporation of the State of New York), Series
                  1993D Bonds, 5.00% Due 4/1/23. (Original issue discount
                  bonds delivered on or about December 23, 1993 at a price
                  of 93.445% of principal amount.)
     750,000    New York State Urban Development Corporation, Correctional         2004 at 102          AAA           Aaa
                  Facilities Revenue Bonds, 1993A Refunding Series, 5.50%
                  Due 1/1/16.
     750,000    The City of New York (New York), General Obligation Bonds,         2005 at 101          AAA           Aaa
                  Fiscal 1995 Series F, 6.625% Due 2/15/25.
     600,000    Metropolitan Transportation Authority (New York), Commuter         No Optional          AAA           Aaa
                  Facilities Service Contract Bonds, Series O, 5.75% Due              Call
                  7/1/13.
     165,000    Metropolitan Transportation Authority (New York), Transit          2004 at 101          AAA           Aaa
                  Facilities Revenue Bonds, Series O, 6.25% Due 7/1/14.                1/2
     750,000    New York City, New York, Municipal Water Finance Authority,        2005 at 101          AAA           Aaa
                  Water and Sewer System Revenue Bonds, Fiscal 1996 Series
                  A, 6.00% Due 6/15/25.
  ----------
  $5,000,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
--------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $    100.20          5.54%            5.58%            5.59%
500-999                 50,000-99,999   4.75          100.04          5.55             5.58             5.60
1,000-2,499           100,000-249,999   4.50           99.78          5.57             5.60             5.62
2,500-4,999           250,000-499,999   4.25           99.52          5.58             5.61             5.63
5,000-9,999           500,000-999,999   3.50           98.75          5.63             5.66             5.68
10,000-24,999     1,000,000- 2,499,999  3.00           98.24          5.65             5.69             5.71
25,000-49,999     2,500,000- 4,999,999  2.50           97.73          5.68             5.72             5.74
50,000 and over    5,000,000 and over   2.00           97.23          5.71             5.75             5.77
</TABLE>
 
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $    100.20          5.62%            5.65%            5.67%
500-999                 50,000-99,999   4.75          100.04          5.63             5.66             5.67
1,000-2,499           100,000-249,999   4.50           99.78          5.64             5.67             5.69
2,500-4,999           250,000-499,999   4.25           99.52          5.66             5.69             5.70
5,000-9,999           500,000-999,999   3.50           98.75          5.70             5.73             5.75
10,000-24,999     1,000,000- 2,499,999  3.00           98.24          5.73             5.76             5.78
25,000-49,999     2,500,000- 4,999,999  2.50           97.73          5.76             5.79             5.81
50,000 and over    5,000,000 and over   2.00           97.23          5.79             5.82             5.84
</TABLE>
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to Date of Deposit. The estimated
    current return for purchases made on such date will be as shown, as long as
    the portfolio size and composition remain the same.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
--------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit 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
New York Insured Trust                            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.............  $   .5863(1)                                                  $  5.5551
                                                          --------  $.4629 every month  --------
Quarterly Distribution Plan...........  $   .5863(1)   $   .4653(2)   $  1.3959      $  1.3959        $  5.5871
Semi-Annual Distribution Plan.........  $   .5863(1)   $   .4671(3)                  $  2.8026        $  5.6061
--------------------------------------------------------------------------------------------------------------------
<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.
(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>
    
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.08 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01543 per unit per day.
Consequently, on the first Record Date (10/01/95), accrued interest will total
$0.5863 per unit for the 38-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 10/01/95 is $.5863 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01543              Quarterly - $0.01551
                             Semi-Annual - $0.01557
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
--------------------------------------------------------------------------------
 
                                                          820
<PAGE>
-------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 24.4 years.
The first bond is scheduled to mature in July, 2013, with the last bond maturity
being June, 2025.
 
-------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
-------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
-------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
-------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
-------------------------------------------------------
 
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.
 
-------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
-------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     PENNSYLVANIA
     INSURED
     TRUST 201
 
            Estimated Current Return
            5.47% to 5.69%
            as of 08/22/95
 
            Estimated Long Term Return
            5.57% to 5.80%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706H8 258 Monthly Payment Option
                  6706H8 266 Quarterly Payment Option
                  6706H8 274 Semi-Annual Payment Option
 
                  Registered in Pennsylvania & Florida
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
--------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, PENNSYLVANIA INSURED TRUST 201
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT AUGUST 23, 1995
--------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    Pennsylvania Higher Educational Facilities Authority               2005 at 102          AAA           Aaa
                  (Commonwealth of Pennsylvania), Saint Joseph's University
                  Revenue Bonds, Series of 1995, 5.875% Due 7/15/25.
     500,000    Delaware County Authority (Commonwealth of Pennsylvania),          2005 at 102          AAA           Aaa
                  Hospital Revenue Bonds, Series of 1995 (Delaware County
                  Memorial Hospital), 5.50% Due 8/15/13.
     500,000    Lancaster County Hospital Authority, Lancaster,                    2004 at 102          AAA           Aaa
                  Pennsylvania, Health Center Revenue Refunding Bonds,
                  Series of 1994 (Masonic Homes Project), 5.00% Due
                  11/15/20. (Original issue discount bonds delivered on or
                  about March 1, 1994 at a price of 92.378% of principal
                  amount.)
     500,000    Lehigh County Industrial Development Authority, Pollution          2005 at 102          AAA           Aaa
                  Control Revenue Refunding Bonds, 1995 Series A
                  (Pennsylvania Power & Light Company Project), 6.15% Due
                  8/1/29.
     500,000    Northampton County Industrial Development Authority                2005 at 102          AAA           Aaa
                  (Pennsylvania), Pollution Control Revenue Refunding Bonds,
                  1995 Series A (Metropolitan Edison Company Project), 6.10%
                  Due 7/15/21.
     500,000    The Pittsburgh (Pennsylvania) Water and Sewer Authority,           2005 at 100          AAA           Aaa
                  Water and Sewer System Subordinate Revenue Bonds, Series B
                  of 1995, 5.70% Due 9/1/20.
     500,000    West Middlesex Area School District (Mercer County,                2004 at 100          AAA           Aaa
                  Pennsylvania), General Obligation Bonds, Series of 1993,
                  5.40% Due 6/15/23.
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
--------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     99.24          5.47%            5.50%            5.52%
500-999                 50,000-99,999   4.75           99.09          5.48             5.51             5.53
1,000-2,499           100,000-249,999   4.50           98.83          5.50             5.53             5.55
2,500-4,999           250,000-499,999   4.25           98.57          5.51             5.54             5.56
5,000-9,999           500,000-999,999   3.50           97.80          5.55             5.59             5.61
10,000-24,999     1,000,000- 2,499,999  3.00           97.30          5.58             5.61             5.63
25,000-49,999     2,500,000- 4,999,999  2.50           96.80          5.61             5.64             5.66
50,000 and over    5,000,000 and over   2.00           96.31          5.64             5.67             5.69
</TABLE>
 
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
-------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     99.24          5.57%            5.61%            5.63%
500-999                 50,000-99,999   4.75           99.09          5.58             5.62             5.64
1,000-2,499           100,000-249,999   4.50           98.83          5.60             5.64             5.65
2,500-4,999           250,000-499,999   4.25           98.57          5.61             5.65             5.67
5,000-9,999           500,000-999,999   3.50           97.80          5.66             5.69             5.71
10,000-24,999     1,000,000- 2,499,999  3.00           97.30          5.68             5.72             5.74
25,000-49,999     2,500,000- 4,999,999  2.50           96.80          5.71             5.75             5.77
50,000 and over    5,000,000 and over   2.00           96.31          5.74             5.78             5.80
</TABLE>
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to Date of Deposit. The estimated
    current return for purchases made on such date will be as shown, as long as
    the portfolio size and composition remain the same.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
--------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit 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
Pennsylvania Insured Trust                        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.............  $   .5730(1)                                                  $  5.4308
                                                          --------  $.4524 every month  --------
Quarterly Distribution Plan...........  $   .5730(1)   $   .4551(2)   $  1.3653      $  1.3653        $  5.4628
Semi-Annual Distribution Plan.........  $   .5730(1)   $   .4566(3)                  $  2.7396        $  5.4818
--------------------------------------------------------------------------------------------------------------------
<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.
(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>
    
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.08 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01508 per unit per day.
Consequently, on the first Record Date (10/01/95), accrued interest will total
$0.5730 per unit for the 38-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 10/01/95 is $.5730 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01508              Quarterly - $0.01517
                             Semi-Annual - $0.01522
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
--------------------------------------------------------------------------------
 
                                                          820
<PAGE>
-------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.5 years.
The first bond is scheduled to mature in August, 2013, with the last bond
maturity being August, 2029.
 
-------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
-------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
-------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
-------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
-------------------------------------------------------
 
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.
 
-------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
-------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.


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