NUVEEN UNIT TRUSTS SERIES 13
S-6, 1998-05-05
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<PAGE>
 
                                                   1940 Act File No. 811-08103


                      Securities and Exchange Commission
                            Washington, D.C. 20549

                                   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 UNIT TRUSTS, SERIES 13

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
                       Attention:  Gifford R. Zimmerman
                       333 West Wacker Drive
                       Chicago, Illinois 60606

                       CHAPMAN AND CUTLER
                       Attention: 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 of securities being registered: Units of fractional undivided
     beneficial interest.

F.   Approximate date of proposed sale to the public:  As soon as practicable
     after the effective date of the Registration Statement.

       
- ----
:  : Check box if it is proposed that this filing will become effective on
- ---- (date) at (time) pursuant to Rule 487.

     The registrant hereby amends this Registration Statement on such date or
     dates as may be necessary to delay its effective date until the registrant
     shall file a further amendment which specifically states that this
     Registration Statement shall thereafter become effective in accordance with
     Section 8(a) of the Securities Act of 1933 or until the Registration
     Statement shall become effective on such date as the Commission, acting
     pursuant to said Section 8(a), may determine.

- ------------------------------------------------------------------------------- 
    
<PAGE>
 
                         Nuveen Unit Trusts, Series 13

                             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)

<TABLE>
<CAPTION>

Form N-8B-2                                      Form S-6
Item Number                                      Heading in Prospectus

          I.  Organization and General Information
<S>                                                <C>     
 1.  (a)  Name of trust                     )      Prospectus 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 Sponsor

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

 5.  Organization of trust                  )      Nuveen Unit Trusts
                                            )
 6.  Execution and termination of Trust     )      Nuveen Unit Trusts
     Agreement                              )      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                    )      Composition of Trusts
                                            )      Portfolio
                                            )      Distributions To Unitholders
                                            )      Redemption
                                            )      Removal of Securities From 
                                            )       The Trusts
                                            )      Information About The Trustee
                                            )      Information About The Sponsor
                                            )      Other Information
                                            )      Tax Status
                                            )
</TABLE>


<PAGE>
 
<TABLE>

<S>                                                <C>
11.  Type of securities comprising units    )      Nuveen Unit Trusts 
                                            )      Portfolio
                                            )      Summary Of Portfolios
                                            )      Composition Of Trusts
                                            )      Objectives Of The Trusts

12.  Certain information regarding          )               *
      periodic payment certificates         )
                                            )
 
13.  (a)  Loan, fees, expenses, etc.        )      Essential Information
                                            )      Public Offering Price
                                            )      Market For Units
                                            )      Evaluation of Securities at
                                            )       the Initial Date Of Deposit
                                            )      Trust Operating Expenses
                                            )      Distributions To Unitholders
                                            )      Summary Of Portfolios
                                            )      Reports To Unitholders
                                            )
                                            )
                                            )
                                            )
 
     (b)  Certain information regarding     )               *
           periodic payment certificates    )
 
     (c)  Certain percentages               )      Public Offering Price
                                            )      Market For Units
                                            )      Evaluation of Securities at
                                            )       the Initial Date Of Deposit
                                            )
                                            )
                                            )
                                            )
                                            )
 
     (d)  Certain other fees, etc.          )      Evaluation of Securities at 
           payable by holders               )       the Initial Date Of Deposit
                                            )      Normal Trust Operating 
                                            )       Expenses
                                            )      Ownership and Transfer of 
                                            )       Units
                                            )
 
     (e)  Certain profits received by       )      Composition Of Trusts
           depositor, principal             )      Purchase of Units by the 
           underwriter, trustee or          )       Sponsor 
           affiliated persons               )
                                            )
 
 
     (f)  Ratio of annual charges to        )               *
           income                           )
</TABLE> 

                                       2

<PAGE>
 
<TABLE> 

<S>                                                <C>                  
14.  Issuance of trust's securities         )      Summary Of Portfolios 
                                            )      Distributions To Unitholders
                                            )      How Certificates Are Issued
                                            )      Redemption
                                            )      
15.  Receipt and handling of payments       )                 *
      from purchasers                       )      
                                                   
16.  Acquisition and Disposition of         )      Nuveen Unit Trusts
      Underlying Securities                 )      Summary Of Portfolios
                                            )      Composition Of Trusts
                                            )      Redemption
                                            )      Removal of Securities from 
                                            )       the Trusts
                                            )      Other Information
                                            )      
                                            )      
                                                   
17.  Withdrawal or redemption               )      Market For Units
                                            )      Redemption
                                            )      Purchase of Units by the Sponsor
                                            )      

18.  (a)  Receipt and disposition of        )      Summary Of Portfolios
           income                           )      Distributions to Unitholders
                                            )      Reports to Unitholders
                                            )      
                                            )      
                                                   
     (b)  Reinvestment of distributions     )      Accumulation Plan

     (c)  Reserves or special funds         )      Summary Of Portfolios
                                            )      Distributions to Unitholders
                                            )      

     (d)  Schedule of distributions         )                 *

19.  Records, accounts and reports          )      Distributions to Unitholders
                                            )      Reports to Unitholders
                                            )      

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

21.  Loans to security holders              )                 *

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

23.  Bond arrangements                      )                 *

</TABLE>

                                       3

<PAGE>
 
<TABLE>

<S>                                                <C>                  
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    )
 
          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           )      Distribution of Units to the Public
                                            )
     (c)  Selling agreement                 )

39.  (a)  Organization of principal         )      Information About the Sponsor
           underwriter                      )
                                             
     (b)  NASD membership of principal      )
           underwriter                      )
                                             
40.  Certain fees received by principal     )                 *
      underwriter                           )
 
41.  (a)  Business of principal             )
           underwriter                      )
</TABLE> 

                                       4
<PAGE>
 
<TABLE>
<CAPTION> 
<S>                                         <C>   <C> 
     (b)  Branch offices of principal       )                               *
           underwriter                      )

     (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               )     Essential Information
                                            )     Public Offering Price
                                            )     Evaluation of Securities at the Date
                                            )      Of Deposit
                                            )     Trust Operating Expenses
                                            )

     (b)  Schedule as to offering price     )                               *

     (c)  Variation in offering price to    )     Public Offering Price
           certain persons                  )     Evaluation of Securities at the Date
                                            )      Of Deposit
                                            )
                                            )
                                            )

45.  Suspension of redemption rights        )                               *

46.  (a)  Redemption valuation              )     Unit Value And Evaluation
                                            )     Redemption Without Charge
                                            )     Purchase of Units by the Sponsor
                                            )
                                            )
                                            )

     (b)  Schedule as to redemption price   )                               *
                                            )
47.  Maintenance of position in             )     Public Offering Price
      underlying securities                 )     Purchase of Units by the Sponsor
                                            )
                                            )

     V. Information Concerning the Trustee or Custodian

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

49.  Fees and expenses of Trustee           )     Essential Information
                                            )     Trust Operating Expenses
</TABLE>

                                       5
<PAGE>
 
<TABLE>
<CAPTION> 
<S>                                         <C>  <C> 
50.  Trustee's lien                         )    Trust Operating Expenses
                                            )    Distributions 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     )    Trust Operating Expenses
           with respect to selection or     )    Redemption
           elimination of underlying        )    Removal of Securities from the
           securities                       )     Trusts
                                            )


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

     (c)  Policy regarding substitution     )    Summary Of Portfolios
           elimination of underlying or     )    Composition Of Trusts
           securities                       )    Removal of Securities
                                            )


     (d)  Fundamental policy not            )                      *
           otherwise covered                )

53.  Tax status of trust                    )    Tax Status
                                            )
     VIII. Financial and Statistical Information

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

55.                                         )

56.  Certain information regarding          )                      *
      periodic payment certificate          )

57.                                         )

58.                                         )
</TABLE>
_______________________
*Inapplicable, omitted, answer negative or not required.

                                       6
<PAGE>
 
                   Preliminary Prospectus Dated May 5, 1998

                        Nuveen Unit Trusts - Series 13

     The attached Prospectus is hereby used as a preliminary Prospectus for the
above-stated Series. Information with respect to the actual trust including
pricing, the number of Units, dates and summary information regarding the
characteristics of securities to be deposited in this Series is not now
available. Accordingly, the information contained herein should be considered as
being included for informational purposes only.

     A REGISTRATION STATEMENT RELATING TO THE UNITS OF THIS SERIES HAS BEEN
FILED WITH THE SECURITIES AND EXCHANGE COMMISSION BUT HAS NOT YET BECOME
EFFECTIVE.  INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT.
SUCH UNITS MAY NOT BE SOLD NOR MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME
THE REGISTRATION STATEMENT BECOMES EFFECTIVE.  THIS PROSPECTUS SHALL NOT
CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO BUY NOR SHALL
THERE BE ANY SALE OF THE UNITS IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR
SALE WOULD BE UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE
SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
 
                             Subject to Completion

                               Nuveen Unit Trusts
              Nuveen Real Estate Opportunity Portfolio, June 1998
                        CUSIP ________-dividends in cash
                      CUSIP ________-dividends reinvested

Prospectus Part A Dated June __, 1998

                                    Overview

     The Nuveen Real Estate Opportunity Portfolio, June 1998 (the "Trust") is a
unit investment trust consisting of a diversified portfolio of common stocks
(the "Securities") issued by publicly traded equity real estate investment
trusts ("REITs") selected by John Nuveen & Co. Incorporated ("Nuveen"), the
Sponsor of the Trust, with the assistance of XXXXXXX. The
Trust seeks to provide capital appreciation and dividend income. The Trust is
scheduled to terminate in approximately ___ years.

     This Part A Prospectus may not be distributed unless accompanied by the
Nuveen Real Estate Opportunity Portfolio Prospectus--Part B which is dated June
__, 1998. Part B of this Prospectus is attached.
       
     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 FDIC or any other Federal 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 NOR HAS THE COMMISSION PASSED UPON THE ACCURACY OR
ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
OFFENSE.
<PAGE>
 
                               Table of Contents

<TABLE>
<CAPTION>
                                                                         Page
<S>                                                                     <C>
Overview.................................................................  1
Trust Summary and Financial Highlights...................................  1
Essential Information....................................................  1
Trust Strategies.........................................................  4
   Investment Objective..................................................  4
   How the Trust Selects Investments.....................................  4
   What are REITs?.......................................................  5
Acquisition of Securities................................................  5
Risk Factors.............................................................  6
Securities Selected for the Trust........................................  7
Distributions............................................................  7
   Income and Capital Distributions......................................  7
Investing in the Trust...................................................  7
   Sales Charges.........................................................  7
Sales Charges............................................................  8
   Dealer Concessions....................................................  8
Dealer Concessions.......................................................  8
   Sponsor's Profits.....................................................  9
General Information...................................................... 10
   Optional Features..................................................... 10
   Secondary Market for Units............................................ 10
   Termination........................................................... 10
   The Sponsor........................................................... 11
   XXXXXX................................................................ 11
Schedule of Investments.................................................. 12
Statement of Condition................................................... 13
Report of Independent Public Accountants................................. 13
</TABLE>

                                      -i-
<PAGE>
           
              Nuveen Real Estate Opportunity Portfolio, June 1998
           Trust Summary and Financial Highlights as of June __, 1998

                             Essential Information

Initial Date of Deposit:                                   June __, 1998
Initial Number of Units:/(1)/                                    _______
Fractional Undivided Interest per Unit:/(1)/                   1/_______

Public Offering Price/(2)/
Aggregate Offering Price of Securities:                          $         
Aggregate Offering Price of Securities per Unit:                 $ 10.00
  Sales Charge:/(3)/                                             $  0.00
Initial Public Offering Price per Unit:                          $ 10.00

Mandatory Termination Date
__________, 2002

Estimated Annual Income Distributions/(4)/
Estimated Annual Income Distributions (per Trust) $___________
Initial Number of Units _________
Estimated Annual Income Distributions (per Unit) $___________
<PAGE>
 
                              Expense Information

Sales Charges (Maximum Total 0.00%)/(5)/
                                                                Amount Per
                                                              $1000 Invested
                                                            (As of the Initial
                                                              Date of Deposit)
Maximum Initial Sales Charge Imposed on
 Purchases (as a % of Initial Public
 Offering Price):/(3)/..........................     0.00%           $  0.00
Maximum Sales Charge on Reinvested
 Dividends (as a % of Initial Public Offering
 Price):........................................     0.00%           $  0.00

Estimated Annual Operating Expenses (Per Unit)/(5)/
Trustee's Fee:                                                       $
Estimated Annual Amortization
 of Organizational and Offering Expenses:                            $
[Evaluator's Annual Fee]                                             $
[Supervisor's Annual Fee]                                            $
Total Annual Expenses:                                               $

Estimated Costs Over Time

     The following are the estimated cumulative costs on a $1,000 investment,
assuming (as mandated by the Securities and Exchange Commission) a 5% annual
return, and reinvestment of all distributions:

          Over 1 Year                                 $
          Over 3 Years                                $
          Over 5 Years                                $
          Over 10 Years                               $

     The examples reflect both the estimated operating expenses and maximum
sales charge on an increasing investment (had the net annual return been
reinvested in the Trust). The examples should not be considered representations
of future expenses or annual rates of return; the actual expenses and annual
rates of return may be more or less than those used in the examples.

____________________
Notes to Essential Information and Expense Information:

(1)  As of the close of business on the Initial Date of Deposit, the number of
     Units of the Trust may be adjusted so that the Public Offering Price per
     Unit will equal approximately $10.00. Thereupon, to the extent of any such
     adjustment, the fractional 

                                      -2-
<PAGE>
 
     undivided interest per Unit will increase or decrease accordingly, from the
     amounts indicated above.

(2)  Each Security listed on a national securities exchange is valued at the
     last closing sale price.

(3)  On the Initial Date of Deposit there will be no accumulated dividends in
     the Income Account. Anyone ordering Units after such date will pay a pro
     rata share of any accumulated dividends in such Income Account. The Public
     Offering Price as shown reflects the value of the Securities at the opening
     of business on the Initial Date of Deposit and establishes the original
     proportionate relationship amongst the individual Securities. No sales to
     investors will be executed at this price. Additional Units will be created
     during the day of the Initial Date of Deposit which will be valued as of
     4:00 p.m. Eastern Time, or as of any earlier closing time on which the New
     York Stock Exchange has scheduled in advance to close at such earlier time.
     No sales charge will be assessed on Units created on the Initial Date of
     Deposit. For Units created after the Initial Date of Deposit, the maximum
     sales charge is _____% of the Public Offering Price per Unit. However, the
     maximum sales charge will be reduced on a graduated scale in case of
     quantity purchases. See "Public Offering Price" in Part B of this
     Prospectus.

(4)  Estimated Annual Income Distributions are based on the most recently
     declared dividends of the Securities. Estimated Annual Income Distributions
     per Unit are based on the number of Units, the fractional undivided
     interest in the Securities per Unit and the aggregate value of the
     Securities per Unit as of the Initial Date of Deposit. Investors should
     note that the actual amount of income distributed per Unit by the Trust
     will vary from the estimated amount due to a variety of factors including,
     changes in the items described in the preceding sentence, expenses and
     actual dividends declared and paid by the issuers of the Securities.

(5)  The Trust (and therefore Unitholders) will bear all or a portion of its
     organizational and offering costs (but not the expenses incurred in the
     printing of preliminary and final prospectuses, nor the expenses incurred
     in the preparation and printing of brochures and other advertising
     materials or any other selling expenses), as is common for mutual funds.
     See "Trust Operating Expenses" in Part B of this Prospectus and "Statement
     of Condition." Historically, the sponsors of unit investment trusts have
     paid all of the costs of establishing such trusts.

                                      -3-
<PAGE>
 
                                Trust Strategies

Investment Objective

     The objective of the Trust is to provide capital appreciation and dividend
income. There is no assurance that the Trust will achieve its investment
objective.

Investment Philosophy

     The Trust consists of a diversified portfolio of common stocks issued by
publicly traded equity REITs. The Trust is a non-managed investment vehicle
which employs a buy and hold investment strategy. The Trust plans to hold, for
approximately ___ years, the stocks selected. At the end of that period, the
portfolio will be liquidated. Nuveen intends to create additional Units of this
Trust. To do this, Nuveen expects to deposit additional Securities in the Trust
or cash (including a letter of credit) with instructions to the Trustee to
purchase additional Securities. Such deposit of Securities will be done in a
manner that will allow the original proportionate relationship among the
Securities to be maintained as closely as practicable.

Investor Suitability

     The Trust is a suitable investment for investors:

     .  Seeking to own a diversified portfolio of REIT common stocks;

     .  Seeking attractive capital and dividend growth potential with moderated
        risk.

     .  Seeking the professional research and selection expertise of Nuveen
        and XXXXXX.

     .  Purchasing the Trust through a tax-deferred vehicle.

     The Trust is not a suitable investment if:

     .  You are unwilling to assume the risks inherent in investing in REIT
        common stocks over a relatively short time horizon and the risks
        inherent in the stock and real estate markets.

How the Trust Selects Investments

     The Securities included in the Trust's portfolio were selected by [Nuveen's
renowned research department] with the assistance of XXXXXX and consist of the
common stocks of REITs listed on national securities exchanges. Nuveen believes
the Securities have the potential for attractive performance through capital
appreciation and dividend income. The Securities were selected for a variety of
reasons, including: their growth potential, large size, low debt levels and the
experience of their management team. The REITs included in the portfolio own
many properties, such as


                                      -4-
<PAGE>
 
multi-family housing complexes, office buildings, industrial complexes, shopping
centers, hotels, health care facilities, self-storage properties and
recreational facilities. The Trust will not, however, invest in REITs that are
designated as "stapled" or "paired share" REITs. A description of the Securities
included in the Trust is set forth below under "Securities Selected for the
Trust" and "Schedule of Investments."

What are REITs?

     REITs are financial vehicles that have as their objective the pooling of
capital from a number of investors in order to participate directly in real
estate ownership or financing. REITs are generally fully integrated operating
companies that have interests in income-producing real estate. REITs bear
operating expenses that include management fees. REITs are differentiated by
the types of real estate properties held and the actual geographic location of
properties and fall into two major categories: equity REITs emphasize direct
property investment, holding their invested assets primarily in the ownership of
real estate or other equity interests, while mortgage REITs concentrate on real
estate financing, holding their assets primarily in mortgages secured by real
estate. As of the initial Date of Deposit, the Trust contains only equity REITs.
REITs obtain capital funds for investment in underlying real estate assets by
selling debt or equity securities in the public or institutional capital markets
or by bank borrowing. Thus, the returns on common equities of the REITs in which
the Trust invests will be significantly affected by changes in costs of capital
and, particularly in the case of highly "leveraged" REITs (i.e., those with
large amounts of borrowings outstanding), by changes in the level of interest
rates. The objective of an equity REIT is to purchase income-producing real
estate properties in order to generate high levels of cash flow from rental
income and a gradual asset appreciation, and they typically invest in properties
such as office, retail, industrial, hotel and apartment buildings and healthcare
facilities. The success of a REIT is largely dependent on the skills of the REIT
manager.

     REITs are a creation of the tax law. REITs essentially operate as a
corporation or business trust with the advantage of exemption from corporate
income taxes provided the REIT satisfies the requirements of Sections 856
through 860 of the Internal Revenue Code. The major tests for tax-qualified
status are that the REIT (i) be managed by one or more trustees or directors,
(ii) issue shares of transferable interest to its owners, (iii) have at least
100 shareholders, (iv) have no more than 50% of the shares held by five or fewer
individuals, (v) invest substantially all of its capital in real estate related
assets and derive substantially all of its gross income from real estate related
assets and (vi) distribute at least 95% of its taxable income to its
shareholders each year. If any REIT in the Trust's portfolio should fail to
qualify for such tax status, the related shareholders (including the Trust)
could be adversely affected by the resulting tax consequences.

                           Acquisition of Securities

     As of the opening of business on the Initial Date of Deposit, all of the
Securities deposited in the Trust were acquired by Nuveen in open market
purchases on a national securities exchange.

                                      -5-
<PAGE>
 
     During the day on the Initial Date of Deposit, it is expected that
additional Securities will be deposited in the Trust by Nuveen. Nuveen will
acquire the additional Securities to be deposited in the Trust during the day on
the Initial Date of Deposit from XXXXXX, which is acting as
sole underwriter to the issuers of the Securities. The acquisition of the
Securities to be deposited in the Trust during the day on the Initial Date of
Deposit by Nuveen is expected to be effected at prices of up to ___% below the
current market value of the Securities due to various factors, including size of
the purchase, expectation of holding period and cost of issuance. As a result of
Nuveen's ability to purchase these Securities during the day on the Initial Date
of Deposit below market value, Nuveen will offer Units of the Trust created on
the Initial Date of Deposit with no sales charge. By virtue of buying the
Securities at prices below market prices during the day on the Initial Date of
Deposit, Nuveen will realize a profit on the deposit of the Securities during
the day of the Initial Date of Deposit of up to ___% of the market value of
these Securities, less concessions due to dealers and others. XXXXXX, who also
acts as a dealer of Units of the Trust, will realize a profit on the sale of the
Securities to Nuveen equal to the difference between its acquisition cost of
such Securities and the sale price of the Securities to Nuveen (expected to be
up to ___% of the market value of the Securities).

     After the Initial Date of Deposit, Securities deposited in the Trust on any
subsequent date(s) of deposit will be acquired in open market purchases on a
national securities exchange. All of the Securities will be deposited in the
Trust based on their market value as of the respective date(s) of deposit.

                                  Risk Factors

     Risk is inherent in all investing. Investing in a unit trust involves risk,
including the risk that you may receive little or no return on your investment
or even that you may lose part or all of your investment. Therefore, before
investing you should consider carefully the following risks that you assume when
you invest in this Trust. Because of these and other risks, you should consider
an investment in the Trust to be a part of a longer term investment strategy
that will provide the best results when followed over a number of years.

     Market risk: the risk that the market value of a stock may change rapidly
and unpredictably, causing a security to be worth less than its original price.
The equity markets tend to have periods of generally rising prices and periods
of generally falling prices. In addition, the market value of REITs and, as a
result, the Units, may be adversely affected by a variety of factors including:
changes in the real estate market, vacancy rates, competition, and interest
rates, as well as economic recession. Because the Trust is not managed,
Securities in the Trust will generally not be sold in response to market
fluctuations. Accordingly, an investor in the Trust may be exposed to more
market risk than an investor in certain managed investment vehicles.

     Inflation risk: the risk that the value of assets or income from
investments will be less in the future as inflation decreases the value of
money. As inflation increases, the value of the Trusts' assets can decline as
can the value of the Trusts' distributions.
   
                                      -6-
<PAGE>
 
     See "Risk Factors" in Part B of this Prospectus for an additional
discussion of potential risks.


                       Securities Selected for the Trust


                                 Distributions

Income and Capital Distributions

     Cash dividends received by the Trust will be paid each June 30 and December
31 ("Income Distribution Dates") to Unitholders of record each June 15 and
December 15 ("Income Record Dates"), respectively. Distributions of funds in the
Capital Account, if any, will be made at least annually on December 31 of each
year to Unitholders of record on December 15, and in certain circumstances,
earlier. Any distribution of income and/or capital will be net of expenses of
the Trust. Additionally, upon termination of the Trust, the Trustee will
distribute, upon surrender of Units, to each remaining Unitholder his pro rata
share of the Trust's assets, less expenses, in the manner set forth under
"Distributions To Unitholders" in Part B of this Prospectus. Any Unitholder may
elect to have each distribution of income or capital on his Units, other than
the final liquidating distribution, automatically reinvested in additional Units
of the Trust without a sales charge. See "Distributions to Unitholders" in
Part B of this Prospectus.

                             Investing in the Trust

Sales Charges

     No sales charge will be assessed on Units created on the Initial Date of
Deposit. For Units created after the Initial Date of Deposit, the maximum sales
charge will be _____% of the public offering price. Unitholders that purchase
more than 5,000 Units are entitled to reduced sales charges. In addition,
certain classes of investors are entitled to purchase Units at reduced sale
charges. See "Public Offering Price" in Part B of this Prospectus. Sales charges
for larger single transactions are as follows:

                                      -7-
<PAGE>
 
                                 Sales Charges
<TABLE>
<CAPTION>
 
                                           Sales            Percent***
                                          Charge**            of Net
                                                              Amount
     Number of Units*                                        Invested
<S>                                     <C>                <C>
Less than 5,000.......................          %                  %
5,000 to 9,999........................          %                  %
10,000 to 24,999......................          %                  %
25,000 to 49,999......................          %                  %
50,000 to 99,999......................          %                  %
100,000 or more.......................          %                  %
Wrap Accounts.........................          %                  %
Rollover (per Unit)...................          %                  %
</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 5,000 Units
     to $50,000, 10,000 Units to $100,000 etc., and will be applied on that
     basis which is more favorable to the purchaser.

**   Based upon a $10.00 Public Offering Price. This will fluctuate based upon
     the Public Offering Price of the Units at the time of purchase and the date
     of purchase. The Public Offering Price per Unit is rounded to the nearest
     cent and accordingly the actual sales charge paid by an investor may be
     slightly greater or less than the amount reflected.

***  Percent of Net Amount Invested is based on the price as of the Initial Date
     of Deposit. To the extent Units are priced differently, the Percent of Net
     Amount Invested will be affected.


 Dealer Concessions

     The Sponsor plans to allow a discount to dealer firms in connection with
the distribution of Units. The discounts, based on number of Units sold, are
provided below.


                               Dealer Concessions
<TABLE>
<CAPTION>
 
                                                        $ Discount
                Number of Units*                         per Unit
<S>                                                     <C>
Less than 5,000..................................               %
5,000 to 9,999...................................
10,000 to 24,999.................................
25,000 to 49,999.................................
50,000 to 99,900.................................
100,000 or more..................................
Wrap Accounts....................................
</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 5,000 Units
     to $50,000, 10,000 Units to $100,000 etc., and will be applied on that
     basis which is more favorable to the purchaser.

                                      -8-
<PAGE>
 
     Nuveen reserves the right to change the amount of the concession or agency
commission from time to time. In addition, Nuveen has adopted a policy whereby
concessions or agency commissions paid to dealers or other selling agents will
be withheld or reversed if Units are tendered for redemption or sold within 30
days of the Initial Date of Deposit.

Sponsor's Profits

     Nuveen may realize a profit (or sustain a loss) as of the opening of
business on the Initial Date of Deposit resulting from the difference between
the purchase prices of the Securities and the cost of such Securities to the
Trust, which is based on the evaluation of the Securities as of the opening of
business on the Initial Date of Deposit. (See Note (2) of "Schedule of
Investments.") In addition, Nuveen will receive a gross sales commission on the
sale of Units sold after the Initial Date of Deposit equal to ____% of the
Public Offering Price of the Units (equivalent to ______% of the net amount
invested), less any reduced sales charge as described under "Investing in the
Trust--Sales Charges" and "Public Offering Price" in Part B of the Prospectus.
See "Distribution of Units to the Public" in Part B of this Prospectus for
information regarding the receipt of additional concessions available to
dealers. Nuveen may also be considered to have realized a profit or to have
sustained a loss, as the case may be, in the amount of any difference between
the cost of the Securities to the Trust (which is based on the Evaluator's
determination of the aggregate price of the underlying Securities of the Trust)
on the subsequent date(s) of deposit and the cost of such Securities to Nuveen.
By virtue of buying the Securities at below market prices during the day on the
Initial Date of Deposit, Nuveen will realize a profit on the deposit of the
Securities on the Initial Date of Deposit of up to ___% of the market value of
the Securities less concessions due to dealers and other selling agents. XXXXXX,
the underwriter to the issuers of the Securities, who also acts as a dealer of
Units of the Trust, will realize a profit on the sale of the Securities to
Nuveen equal to the difference between the underwriter's acquisition cost of
such Securities and the sale price of the Securities to the Sponsor (expected to
be up to ___% of the market value of the Securities). During the initial
offering period, dealers and other selling agents also may realize profits or
sustain losses as a result of fluctuation after the Initial Date of Deposit in
the Public Offering Price received by the dealers and other selling agents upon
the sale of Units.

     In maintaining a market for the Units, Nuveen will also realize profits or
sustain losses in the amount of any difference between the price at which Units
are purchased and the price at which Units are resold (which price includes a
sales charge of _________%) or redeemed. The secondary market Public Offering
Price of Units may be greater or less than the cost of such Units to the
Sponsor.

                                      -9-
<PAGE>
 
                              General Information

Optional Features

Redemptions

     Units may be redeemed on any business day at their current market value.
See "Redemption" in Part B of this Prospectus.

Letter of Intent (LOI)

     Investors may use a Letter of Intent to get reduced sales charges on
purchases made over a 13-month period (and to take advantage of dollar cost
averaging). The minimum LOI investment is $50,000. See "Public Offering Price"
in Part B of this Prospectus.

Reinvestment

     Distributions from the Trust can be reinvested with no sales charge into
Nuveen mutual or money market funds. Also, income and certain capital
distributions from the Trust can be reinvested with no sales charge into
additional Units of the Trust. See "Distributions of Unitholders" and
"Accumulation Plan" in Part B of this Prospectus. For more information about
Nuveen investment products, obtain a prospectus from your financial adviser.

Secondary Market for Units

     Although not obligated to do so, the Sponsor may maintain a market for
Units and offer to repurchase the Units at prices based on the aggregate value
of the Securities, plus or minus cash, if any, the Capital and Income Accounts
of the Trust plus a sales charge as set forth above in "Investing in the
Trust--Sales Charge." If a secondary market is not maintained, a Unitholder may
still redeem his Units through the Trustee. See "Redemption" in Part B of this
Prospectus.

Termination

     Commencing on the Mandatory Termination Date, the Equity Securities will
begin to be sold as prescribed by the Sponsor. The Trustee will provide written
notice of the termination to Unitholders which will specify when certificates
may be surrendered. Unitholders will receive a cash distribution within a
reasonable time after the Trust's termination. See "Distributions to
Unitholders" and "Other Information--Termination of Indenture" in Part B of this
Prospectus.

                                      -10-
<PAGE>
 
The Sponsor

     Since our founding in 1898, John Nuveen & Co. Incorporated has been
synonymous with investments that withstand the test of time. Today, we offer a
range of equity and fixed-income unit trusts designed to suit the unique
circumstances and financial planning needs of mature investors. More than 1.3
million investors have trusted Nuveen to help them maintain the lifestyle they
currently enjoy.

XXXXXX 

     The prospectus describes in detail the investment objectives, policies and
risks of the Trust. We invite you to discuss the contents with your financial
adviser, or you may call us at 800-257-8787 for additional information.

                                      -11-
<PAGE>
 
              Nuveen Real Estate Opportunity Portfolio, June 1998
                        (Nuveen Unit Trusts, Series 13)
     Schedule of Investments at the Initial Date of Deposit, June ___, 1998

<TABLE>
<CAPTION>
                                                                Percentage
 Number                                                        of Aggregate       Market       Cost of         Current
   of                Name of Issuer of Securities                Offering       Value per     Securities      Dividend
 Shares                   (Ticker Symbol)(1)                      Price           Share      to Trust(2)      Yield(3)
 <S>               <C>                                         <C>               <C>           <C>           <C>
                                                                        %        $             $             $              
 
 
 
 
 
 
 
 
 
- -------                                                        ------------                  -----------      --------
                                                                   100%
=======                                                        ============                  ===========      ========
</TABLE>
____________________
(1)  All Securities are represented by regular way contracts to purchase such
     Securities for the performance of which an irrevocable letter of credit has
     been deposited with the Trustee. The contracts to purchase the Securities
     were entered into by the Sponsor on ____________, 1998.

(2)  The cost of the Securities to the Trust represents the aggregate underlying
     value with respect to the Securities acquired (generally determined by the
     last sale prices of the listed Securities on the business day preceding the
     initial Date of Deposit). The valuation of the Securities has been
     determined by the Trustee. The aggregate underlying value of the Securities
     on the Initial Date of Deposit was $_______. Cost and gain or (loss) to
     Sponsor relating to the Securities sold to the Trust were $________ and
     $________, respectively.

(3)  Current Dividend Yield for each Security was calculated by annualizing the
     last quarterly or semi-annual ordinary dividend declared on that Security
     and dividing the result by that Security's closing sale price on the
     business day prior to the Initial Date of Deposit.

                                      -12-
<PAGE>
 
              Nuveen Real Estate Opportunity Portfolio, June 1998
                        (Nuveen Unit Trusts, Series 13)
     Statement of Condition at the Initial Date of Deposit, June ___, 1998

<TABLE> 
<CAPTION>

<S>                                                               <C>  
Trust Property
Investment in Equity Securities represented by purchase
  contracts/(1)(2)/...........................................    $
Organizational and offering costs/(3)/
                                                                  ---------
          Total...............................................    $
                                                                  =========

Liabilities and Interest of Unitholders
Liabilities:
  Accrued organizational and offering costs/(3)/..............    $
                                                                  ---------
          Total...............................................    $
                                                                  =========

Interest of Unitholders:
  Unit of fractional undivided interest outstanding (_________)
  Cost of investors/(4)/......................................    $
     Less:  Sales charge/(5)/.................................       (0.00)
                                                                  ----------
  Net amount applicable to investors..........................    $
                                                                  =========
          Total...............................................    $
                                                                  =========
</TABLE> 

____________________
(1)  Aggregate cost of Securities listed under "Schedule of Investments" is
     based on their aggregate underlying value.

(2)  An irrevocable letter of credit has been deposited with the Trustee as
     collateral, which is sufficient to cover the monies necessary for the
     purchase of the Securities pursuant to contracts for the purchase of such
     Securities.

(3)  The Trust (and therefore Unitholders) will bear all or a portion of its
     estimated organizational and offering costs which will be deferred and
     amortized over the first ___ years of the Trust. The estimated organization
     and offering costs are based upon an estimate that ___________ Units of the
     Trust will be issued. To the extent the number of Units issued is larger or
     smaller, the estimate will vary.

(4)  Aggregate Public Offering Price computed as set forth under "Public
     Offering Price" in Part B of this Prospectus.

(5)  There is no sales charge on Units purchased on the Initial Date of Deposit.
     For Units purchased after the Initial Date of Deposit, the aggregate cost
     to investors includes a maximum sales charge of ___% of the Public Offering
     Price assuming no reduction of sales charge as set forth above in
     "Investing in the Trust--Sales Charge" or "Public Offering Price" in Part B
     of this Prospectus.

                    Report of Independent Public Accountants

     To the Board of Directors of John Nuveen & Co. Incorporated and Unitholders
of Nuveen Unit Trusts, Series 13:

     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 Nuveen
Unit Trusts, Series 13 (Nuveen Real Estate Opportunity Portfolio, June 1998),
as of June ___, 1998. 

                                      -13-
<PAGE>
 
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 (2) 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 schedule of investments
at date of deposit referred to above present fairly, in all material respects,
the financial position of Nuveen Unit Trusts, Series 13 (Nuveen Real Estate
Opportunity Portfolio, June 1998), as of June ___, 1998, in conformity with
generally accepted accounting principles.

                                     Arthur Andersen LLP

Chicago, Illinois
June ___, 1998.

                                      -14-
<PAGE>
       
                 (This page has been left blank intentionally.)

                                      -15-
<PAGE>
 
                             Subject to Completion

                               Nuveen Unit Trusts
             Nuveen Real Estate Opportunity Portfolio Prospectus-- 
                                     Part B
                                (General Terms)

                                June____, 1998

     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 4 New York Plaza, New York, NY 10004-2413 or (800)
257-8787.

     Currently offered at Public Offering Price plus accumulated dividends
accrued to the date of settlement. Minimum purchase--either $1,000 or 100 Units
($500 or nearest whole number of Units whose value is less than $500 for
Education IRA purchases), whichever is less.

     This Nuveen Unit Trust Series consists of the underling separate unit
investment trusts set forth in the respective Part A to this Prospectus. Each
Trust initially consists of delivery statements relating to contracts to
purchase securities and, thereafter, will consist of a portfolio of common
stocks of companies described in the applicable Part A of the Prospectus (see
"Schedule of Investments" in Part A of the Prospectus). Except in specific
instances as noted in Part A of the Prospectus, the information contained in
this Part B shall apply to each Trust in its entirety. For a discussion of the
Sponsor's obligations in the event of a failure of any contract for the purchase
of any of the Securities and its limited right to substitute other securities to
replace any failed contract, see "Composition of Trust."

     Dividend and Capital Distributions. Cash dividends received by the Trust
will be paid on those dates set forth under "Distributions" in Part A of the
Prospectus. Distributions of funds in the Capital Account will be made as set
forth under "Distributions" in Part A of the Prospectus, and in certain
circumstances, earlier. See "Distributions to Unitholders."

     The Public Offering Price per Unit of each Trust for Units created on the
Initial Date of Deposit is generally equal to a pro rata share of the aggregate
underlying value of the Securities in such Trust's portfolio (generally
determined by the closing sale prices of the listed Securities and the ask
prices of over-the-counter traded Securities) plus or minus cash, if any, in the
Income and Capital Accounts of the Trust, with no sales charge and is rounded to
the nearest cent. The Public Offering Price per Unit of each Trust for Units
created after the Initial Date of Deposit is generally equal to a pro rata share
of the aggregate underlying value of the Securities in the Trust's portfolio
(generally determined by the closing sale prices of the listed Securities and
the ask prices of over-the-counter traded Securities) plus or minus cash, if
any, in the Income and Capital Accounts, plus a sales charge as set forth in

        THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
AND EXCHANGE COMMISSION NOR HAS THE COMMISSION PASSED UPON THE ACCURACY OR 
ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL 
OFFENSE.
<PAGE>
 
Part A of the Prospectus and is rounded to the nearest cent. The Secondary
Market Public Offering Price per Unit for each Trust will generally be equal to
a pro rata share of the aggregate underlying value of the Securities in such
Trust (generally determined by the closing sale prices of the listed Securities
and the bid prices of over-the-counter traded Securities) plus a sales charge as
set forth in Part A of the Prospectus. A pro rata share of accumulated
dividends, if any, in the Income Account 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 the number of Units set forth in
Part A of this Prospectus.

     A Unitholder May Redeem Units at the office of the Trustee at prices based
upon the aggregate underlying value of the Securities (generally determined by
the closing sale prices of listed Securities and the bid prices of over-the-
counter traded Securities). The price received upon redemption may be more or
less than the amount paid by Unitholders, depending upon the value of the
Securities on the date of tender for redemption. (See "Redemption.") The
Sponsor, although not required to do so, may make a secondary market for the
Units of the Trusts at prices based upon the aggregate underlying value of the
Securities in the respective Trust (generally determined by the closing sale
prices of listed Securities and the bid prices of over-the-counter traded
Securities). (See "Market for Units.")

                                      -2-

<PAGE>
 
                               Table of Contents

<TABLE>
<CAPTION>
                                                                         Page
<S>                                                                     <C>
Nuveen Unit Trusts.....................................................    4
Composition of Trusts..................................................    5
Risk Factors...........................................................    6
Public Offering Price..................................................   10
Market for Units.......................................................   13
Evaluation of Securities at the Initial Date of Deposit................   13
Tax Status.............................................................   14
Retirement Plans.......................................................   19
Trust Operating Expenses...............................................   19
Distributions to Unitholders...........................................   20
Accumulation Plan......................................................   21
Reports to Unitholders.................................................   21
Unit Value and Evaluation..............................................   22
Distributions of Units to the Public...................................   23
Ownership and Transfer of Units........................................   24
Replacement of Lost, Stolen or Destroyed Certificates..................   25
Redemption.............................................................   25
Purchase of Units by the Sponsor.......................................   28
Removal of Securities from the Trusts..................................   28
Information about the Trustee..........................................   29
Limitations on Liabilities of Sponsor and Trustee......................   29
Successor Trustees and Sponsors........................................   29
Information about the Sponsor..........................................   30
Other Information......................................................   31
Legal Opinion..........................................................   32
Auditors...............................................................   32
Supplemental Information...............................................   32
</TABLE>

                                      -3-

<PAGE>
 
Nuveen Unit Trusts

     This Nuveen 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 each Trust is set forth in Part A of this Prospectus. The
various Nuveen Unit Trusts are collectively referred to herein as the "Trusts."
This Series was created under the laws of the State of New York pursuant to a
Trust Indenture and Agreement dated the Initial Date of Deposit (the
"Indenture") between John Nuveen & Co. Incorporated ("Nuveen" or the "Sponsor")
and The Chase Manhattan Bank (the "Trustee").

     The Sponsor has deposited with the Trustee delivery statements relating to
contracts for the purchase of common stocks of the companies described in the
applicable Part A of the Prospectus, together with funds represented by an
irrevocably letter of credit issued by a major commercial bank in the amount
required for their purchase (or the securities themselves) (the "Securities").
See "Schedule of Investments" in Part A of this Prospectus, for a description of
the Securities deposited in Trust. See also, "Trust Strategies" and "Risk
Factors" in Part A of the Prospectus.

     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 Securities deposited in 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.

     Additional Units of a Trust may be issued from time to time following the
Initial Date of Deposit by depositing in such Trust additional Securities (or
contracts therefore backed by an irrevocable letter of credit or cash) or cash
(including a letter of credit) with instructions to purchase additional
Securities in the Trust. As additional Units are issued by a Trust as a result
of the deposit of additional Securities or cash by the Sponsor, the aggregate
value of the Securities in a Trust will be increased and the fractional
undivided interest in such Trust represented by each Unit will be decreased. The
Sponsor may continue to make additional deposits of Securities, or cash with
instructions to purchase additional Securities, into a Trust following the
Initial Date of Deposit, provided that such additional deposits will be in
amounts which will maintain, within reasonable parameters, the same original
proportionate relationship among the Securities in such Trust established on the
Initial Date of Deposit. Thus, although additional Units will be issued, each
Unit will continue to represent the same proportionate amount of each Security.
To the extent that any Units are redeemed by the Trustee or additional Units are
issued as a result of additional Securities or cash being deposited by the
Sponsor, the fractional undivided interest in a Trust represented 

                                      -4-

<PAGE>
 
by each unredeemed Unit will decrease or increase accordingly, although the
actual interest in such Trust represented by such fraction will remain
unchanged. If the Sponsor deposits cash, however, existing and new investors may
experience a dilution of their investment and a reduction in their anticipated
income because of fluctuations in the price of the Securities between the time
of the cash deposit and the purchase of the Securities and because the Trust
will pay the associated brokerage fees. To minimize this effect, the Trust will
try to purchase the Securities as close to the evaluation time or as close to
the evaluation price as possible. Units will remain outstanding until redeemed
upon tender to the Trustee by Unitholders, which may include the Sponsor, or
until termination of the Trust Agreement.

     The Sponsor may realize a profit (or sustain a loss) as of the opening of
business on the Initial Date of Deposit resulting from the difference between
the purchase prices of the Securities and the cost of such Securities to the
Trust, which is based on the evaluation of the Securities as of the opening of
business on the Initial Date of Deposit. (See "Schedule of Investments" in Part
A of this Prospectus.) The Sponsor may also be considered to have realized a
profit or to have sustained a loss, as the case may be, in the amount of any
difference between the cost of the Securities to the Trust (which is based on
the Evaluator's determination of the aggregate price of the underlying
Securities of the Trust) on the subsequent date(s) of deposit and the cost of
such Securities to Nuveen, if applicable.

Composition of Trusts

     Each Trust initially consists of delivery statements relating to contracts
to purchase Securities (or of such Securities) as are listed under "Schedule of
Investments" in Part A of this Prospectus and, thereafter, of such Securities as
may continue to be held from time to time (including certain securities
deposited in the Trust to create additional Units or in substitution for
Securities not delivered to a Trust.)

     Limited Replacement of Certain Securities. Neither the Sponsor nor the
Trustee shall be liable in any way for any default, failure or defect in any
Security. In the event of a failure to deliver any Security that has been
purchased for a Trust under a contract, including those Securities purchased on
a when, as and if issued basis ("Failed Securities"), the Sponsor is authorized
under the Indenture to direct the Trustee to acquire other specified Securities
("Replacement Securities") 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
may not exceed the amount of funds reserved for the purchase of the Failed
Securities.

     If the right of limited substitution described in the preceding paragraph
is not utilized to acquire Replacement Securities in the event of a failed
contract, the Sponsor will refund the sales charge attributable to such Failed
Securities to all Unitholders of the Trust and the Trustee will distribute the
principal attributable to such Failed Securities not more than 120 days after
the date on which the Trustee received a notice from the sponsor that a
Replacement Security would not be deposited in the Trust. In addition,
Unitholders should be aware that, at the time of receipt of such principal, they
may not be able to reinvest such proceeds in other securities with equivalent
growth potential at a comparable price.

                                      -5-

<PAGE>
 
     The indenture also authorizes the Sponsor to increase the size of the Trust
and the number of Units thereof by the deposit of additional Securities in the
Trust or cash (including a letter of credit) with instructions to purchase
additional Securities in the Trust and the issuance of a corresponding number of
additional Units. If the Sponsor deposits cash, however, existing and new
investors may experience a dilution of their investment and a reduction in their
anticipated income because of fluctuations in the prices of the Securities
between the time of the cash deposit and the purchase of the Securities and
because the Trust will pay the associated brokerage fees.

     Sale of Securities. Certain of the Securities may from time to time under
certain circumstances be sold. 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.

     Litigation. To the best knowledge of the Sponsor, there is no litigation
pending as of the Initial Date of Deposit in respect of any Securities which
might reasonably be expected to have a material adverse effect on any of the
Trusts. It is possible that after the Initial Date of Deposit, litigation may be
initiated with respect to Securities in any Trust. The Sponsor is unable to
predict whether any such litigation may be instituted, or if instituted, whether
such litigation might have a material adverse effect on the Trusts.

Risk Factors

     An investment in Units should be made with an understanding of the risks
which an investment in common stocks entails, including the risk that the
financial condition of the issuers of the Securities or the general conditions
of the common stock market may worsen and the value of the Securities and
therefore the value of the Units may decline. Common stocks are especially
susceptible to general stock market movements and to volatile increases and
decreases of value as market confidence in and perceptions of the issuers
change. These perceptions are based on unpredictable factors including
expectations regarding government, economic, monetary and fiscal policies,
inflation and interest rates, economic expansion or contraction, and global or
regional political, economic or banking crises. Shareholders of common stocks
have rights to receive payments from the issuers of those common stocks that are
generally subordinate to those of creditors of, or holders of debt obligations
or preferred stocks of, such issuers. Shareholders of common stocks of the type
held by the Trust have a right to receive dividends only when and if, and in the
amounts, declared by the issuer's board of directors and have a right to
participate in amounts available for distribution by the issuer only after all
other claims on the issuer have been paid or provided for. Common stocks do not
represent an obligation of the issuer and, therefore, do not offer any assurance
of income or provide the same degree of protection of capital as do debt
securities. The issuance of additional debt securities or preferred stock will
create prior claims for payment of principal, interest and dividends which could
adversely affect the ability and inclination of the issuer to declare or pay
dividends on its common stock or the rights of holders of common stock with
respect to assets of the issuer upon liquidation or bankruptcy. The value of
common stocks is subject to market fluctuations for as long as the common stocks
remain outstanding, and thus the value of the Securities in the Trust may be

                                      -6-
<PAGE>
 
expected to fluctuate over the life of the Trust to values higher or lower than
those prevailing on the Initial Date of Deposit.

     Holders of common stock incur more risk than holders of preferred stocks
and debt obligations because common stockholders, as owners of the entity, have
generally inferior rights to receive payments from the issuer in comparison with
the rights of creditors of, or holders of debt obligations or preferred stocks
issued by, the issuer. Cumulative preferred stock dividends must be paid before
common stock dividends and any cumulative preferred stock dividend omitted is
added to future dividends payable to the holders of cumulative preferred stock.
Preferred stockholders are also generally entitled to rights on liquidation
which are senior to those of common stockholders.

     Unitholders will be unable to dispose of any of the Securities in the
Trust, as such, and will not be able to vote the Securities. As the holder of
the Securities, the Trustee will have the right to vote all of the voting stocks
in a Trust and will vote such stocks in accordance with the instructions of the
Sponsor.

     The value of the Securities will fluctuate over a life of a Trust and may
be more or less than the value at the time they were deposited in such Trust.
The Securities may appreciate or depreciate in value (or pay dividends)
depending on the full range of economic and market influences affecting these
Securities, including the impact of the Sponsor's purchase and sale of
Securities (especially during the primary offering period of Units of a Trust)
and other factors.

     Whether or not the Securities are listed on a securities exchange, the
principal trading market for the Securities may be in the over-the-counter
market. As a result, the existence of a liquid trading market for the Securities
may depend on whether dealers will make a market in the Securities. There can be
no assurance that a market will be made for any of the Securities, that any
market for the Securities will be maintained or of the liquidity of the
Securities in any markets made. In addition, the Trust may be restricted under
the Investment Company Act of 1940 from selling Securities to the Sponsor. The
price at which the Securities may be sold to meet redemptions and the value of
the Trust will be adversely affected if trading markets for the Securities are
limited or absent.

     Real Estate Investment Trusts. An investment in the Trust should be made
with an understanding of the risks inherent in an investment in REITs
specifically and in real estate generally (in addition to securities market
risks). The underlying value of the Securities and the Trust's ability to make
distributions to Unitholders may be adversely affected by changes in the
national, state and local economic climate and real estate conditions (such as
oversupply of or reduced demand for space, changes in market rental rates or
declining property values), increasing values and reduced supply of desirable
properties for acquisition, perceptions of prospective tenants of the safety,
convenience and attractiveness of the properties, the ability of the owner to
provide adequate management, maintenance and insurance, the ability to collect
on a timely basis all rents from tenants, tenant defaults, the cost of complying
with the Americans with Disabilities Act, rising inflation rates, increased
competition from other properties, obsolescence of properties, changes in the
availability, cost and terms of mortgage funds, the impact of


                                      -7-
<PAGE>
 
present or future environmental legislation and compliance with environmental
laws, the ongoing need for capital improvements, particularly in older
properties, changes in real estate tax rates and other operating expenses,
regulatory and economic impediments to raising rents, adverse changes in
governmental rules and fiscal policies, dependency on management skills, civil
unrest, acts of God, including earthquakes and other natural disasters (which
may result in uninsured losses), acts of war, adverse changes in zoning laws,
and other factors which are beyond the control of the issuers of the REITs in
the Trust.

     The value of the REITs may at times be particularly sensitive to
devaluation in the event of rising interest rates. Equity REITs are less likely
to be affected by interest rate fluctuations than mortgage REITs and the nature
of the underlying assets of an equity REIT may be considered more tangible than
that of a mortgage REIT. Equity REITs are more likely to be adversely affected
by changes in the value of the underlying properties they own, or are acquiring,
than mortgage REITs.

     REITs may concentrate investments in specific geographic areas or in
specific property types, i.e., hotels, shopping malls, residential complexes and
office buildings. The impact of economic conditions on REITs can also be
expected to vary with geographic location and property type. Investors should be
aware that the REITs may not be diversified and are subject to the risks of
financing projects. REITs are also subject to defaults by borrowers, self-
liquidation, the market's perception of the REIT industry generally, and the
possibility of failing to qualify for pass-through of income under the Internal
Revenue Code, and to maintain exemption from the Investment Company Act of 1940.
A default by a borrower or lessee may cause the REIT to experience delays in
enforcing its right as mortgagee or lessor and to incur significant costs
related to protecting its investments. In addition, because real estate
generally is subject to real property taxes, the REITs in the Trust may be
adversely affected by increases or decreases in property tax rates and
assessments or reassessments of the properties underlying the REITs by taxing
authorities. Furthermore, because real estate is relatively illiquid, the
ability of REITs to vary their portfolios in response to changes in economic and
other conditions may be limited and may adversely affect the value of the Units.
There can be no assurance that any REIT will be able to dispose of its
underlying real estate assets when advantageous or necessary. In an effort to
reduce the impact of the risks discussed above, the Sponsor has selected REITs
that are diversified among various real estate sectors and geographic locations.

     REITs generally maintain comprehensive insurance on presently owned and
subsequently acquired real property assets, including liability, fire and
extended coverage. However, certain types of losses may be uninsurable or not be
economically insurable as to which the underlying properties are at risk in
their particular locales. There can be no assurance that insurance coverage will
be sufficient to pay the full current market value or current replacement cost
of any lost investment. Various factors might make it impracticable to use
insurance proceeds to replace a facility after it has been damaged or destroyed.
Under such circumstances, the insurance proceeds received by a REIT might not be
adequate to restore its economic position with respect to such property.

                                      -8-
<PAGE>
 
     Under various environmental laws, a current or previous owner or operator
of real property may be liable for the costs of removal or remediation of
hazardous or toxic substances on, under or in such property. Such laws often
impose liability whether or not the owner or operator caused or knew of the
presence of such hazardous or toxic substances and whether or not the storage of
such substances was in violation of a tenant's lease. In addition, the presence
of hazardous or toxic substances, or the failure to remediate such property
properly, may adversely affect the owner's ability to borrow using such real
property as collateral. No assurance can be given that one or more of the REITs
in the Trust may not be presently liable or potentially liable for any such
costs in connection with real estate assets they presently own or subsequently
acquire while such REITs are held in the Trust.

     The Clinton Administration's proposed budget for fiscal year 1999 includes
four proposals affecting REITs. These proposals, if enacted, would place
additional restrictions on the structure of certain REITs, limit a REIT's
permissible investments, and effect the taxation of "built-in gains." The
Sponsor is unable to predict whether such proposals or future proposals will be
enacted or what impact such proposals or future proposals, if any, will have on
the Securities included in the Trust.

     Unitholders will be unable to dispose of any of the Securities in the
Portfolio, as such, and will not be able to vote the Securities. As the holder
of the Securities, the Trustee will have the right to vote all of the voting
stocks in the Trust and will vote such stocks in accordance with the
instructions of the Sponsor.

     XXXXXX has acted as sole underwriter to the issuers of the Securities in
the acquisition of the Securities at prices below market value for deposit in
the Trust on the Initial Date of Deposit and may acquire the Securities for the
Sponsor in open market transactions on subsequent date(s) of deposit and thereby
may benefit. XXXXXX, in its general securities business, acts as agent or
principal in connection with the purchase and sale of equity securities,
including the Securities in the Trust, and may act as a market maker in certain
of the Securities. XXXXXX also from time to time may issue reports on and make
recommendations relating to equity securities, which may include the Securities,
and may provide investment banking services to the issuers of the Securities.

     The criteria for inclusion in the Trust were applied to the Securities
immediately prior to the Initial Date of Deposit. Since the Sponsor may deposit
additional Securities, the Sponsor may continue to sell Units of the Trust even
though the dividend income or the capital appreciation potential of the
Securities may have changed and would no longer justify inclusion in the Trust.
In addition, the Sponsor will continue to sell Units of the Trust even if XXXXXX
changes a recommendation relating to a Security.

     Investors should also note that XXXXXX, in its independent capacity as a
broker/dealer and as an investment advisor to individuals, mutual funds,
employee benefit plans or other institutions and persons, may distribute
information concerning the Securities which comprise the portfolio to various
individuals and entities and may, from time to time, recommend to or effect on
behalf of such individuals, entities or

                                      -9-
<PAGE>
 
others, the purchase or sale of one or more of the Securities which are included
in the portfolio. This may have an effect on the prices of the Securities which
is adverse to the interest of the purchasers of Units of the Trust.
Additionally, this may have an impact on the price paid by the Trust for the
Securities as well as the price received upon redemption of the Units or upon
the termination of the Trust.

     Year 2000 Problem. Like other investment companies, financial and business
organizations and individuals around the world, the Trust could be adversely
affected if the computer systems used by the Sponsor or Trustee or other service
providers to the Trust do not properly process and calculate date-related
information and data from and after January 1, 2000. This is commonly known as
the "Year 2000 Problem." The Sponsor and Trustee are taking steps that they
believe are reasonably designed to address the Year 2000 Problem with respect to
computer systems that they use and to obtain reasonable assurances that
comparable steps are being taken by the Trust's other service providers. At this
time, however, there can be no assurance that these steps will be sufficient to
avoid any adverse impact to the Trust.

     The Year 2000 Problem is expected to impact corporations and other parties,
which may include issuers of the Securities contained in the Trust, to varying
degrees based upon various factors, including, but not limited to, their
industry sector and degree of technological sophistication. The Sponsor is
unable to predict what impact, if any, the Year 2000 Problem will have on
issuers of the Securities contained in the Trust.

     Legislation. At any time after the Initial Date of Deposit, legislation may
be enacted, with respect to the Securities in the Trust or the issuers of the
Securities. Changing approaches to regulation, particularly with respect to the
environment, may have a negative impact on certain companies represented in the
Trust. There can be no assurance that future legislation, regulation or
deregulation will not have a material adverse effect on the Trust or will not
impair the ability of the issuers of the Securities to achieve their business
goals.

REIT Market Factors and Historical Index Performance

     Over the five year period ended in 1997, the total market capitalization of
REITs grew from approximately $16 billion to nearly $141 billion according to
the National Association of Real Estate Investment Trusts ("NAREIT"), which
still represents only a portion of the U.S. commercial real estate market.
However, according to ________, real estate tends to be under-represented in a
typical portfolio - generally making up only 3 to 4% of total invested assets,
compared with professional recommendations of up to 15%. Recently, the Real
Estate Investment Trust Simplification Act of 1997 was enacted and is generally
thought to ease restrictions on REITs to allow for greater efficiency and
competitiveness. In addition, the Sponsor believes that a strong economy has the
potential to create opportunities in the real estate market. In most of the
nation's property markets, demand exceeds prerecession peaks. Record low vacancy
rates in suburban office markets cause some observers to believe the suburbs are
at full capacity. That may spell opportunity for developers. Historically high
lease rate increases--coupled with low costs--should place companies in the
industry in a good position for future success. As indicated on the graph
provided below, over the period from December 31, 1972 through December 31,
1997, a $10,000 investment in REITs (as measured by the NAREIT Index) would have
grown to $_______ while a similar investment in Dow Jones Industrial Average
("DJIA") stocks and the S&P 500 Index would have grown to $_______, and
$______, respectively. The

                                     -10-
<PAGE>
 
average annual total returns of the NAREIT Index for the most recent 1, 3, 5,
10, 20 and 25 years ended December 31, 1997, were 20.3%, 23.3%, 18.3%, 14.2%,
16.0% and 14.3%. The average annual total returns of the S&P 500 Index for the
most recent 1, 3, 5, 10, 20 and 25 years ended December 31, 1997, were 33.1%,
30.8%, 20.0%, 17.8%, 16.4% and 12.9%. The average annual total returns of the
DJIA for the most recent 1, 3, 5, 10, 20 and 25 years ended December 31, 1997
were __%, __%, __%, __%, __% and __%. Over the last 25 years, REITs have
generated attractive returns while tending to experience smaller losses than the
S&P 500 Index during significant stock market declines. From ___ to ____, the
NAREIT Index demonstrated only __% and __% of the volatility of the S&P 500
Index and DJIA, respectively. In addition, REITs have historically served as
valuable protection against inflation and according to xxxxx, have served as a
better inflation defense than the S&P 500 Index. The Trust portfolio is much
less diversified than the NAREIT Index and will have investment results that
differ from these indices.

The following table compares the average annual total returns of the NAREIT
Index, S&P 500 Index and the DJIA from December 31, 1972 through December 31,
1997. The average annual total returns and the cumulative total returns of the
NAREIT Index, S&P 500 Index and the DJIA over that time period were 15.51% and
2797%, 14.39% and 2152%, and 14.53% and 2215%, respectively.

<TABLE>
<CAPTION>
                    Annual Total Returns

               S&P 500 
                Index      NAREIT Index     DJIA
<S>            <C>         <C>            <C> 
12/31/72
12/31/73       -14.66%       -15.52%      -13.29%
12/31/74       -26.47%       -21.40%      -23.73%
12/31/75        37.20%        19.30%       44.87%
12/31/76        23.84%        47.59%       22.93%
12/31/77        -7.18%        22.42%      -12.84%
12/31/78         6.56%        10.34%        2.81%
12/31/79        18.44%        35.86%       10.68%
12/31/80        32.42%        24.37%       22.13%
12/31/81        -4.91%         6.00%       -3.65%
12/31/82        21.41%        21.60%       27.20%
12/31/83        22.51%        30.64%       26.05%
12/31/84         6.27%        20.93%        1.35%
12/31/85        32.16%        19.10%       33.62%
12/31/86        18.47%        19.16%       27.25%
12/31/87         5.23%        -3.64%        5.55%
12/31/88        16.81%        13.49%       16.21%
12/31/89        31.49%         8.84%       32.24%
12/31/90        -3.17%       -15.35%       -0.54%
12/31/91        30.55%        35.70%       24.25%
12/31/92         7.67%        14.59%        7.40%
12/31/93         9.99%        19.65%       16.97%
12/31/94         1.31%         3.17%        5.02%
12/31/95        37.43%        15.27%       36.94%
12/31/96        23.07%        35.26%       28.91%
12/31/97        33.36%        20.29%       24.91%
</TABLE>

The following graph compares growth of a hypothetical $10,000 investment in the
NAREIT Index, the S&P 500 Index and the DJIA over the period December 31, 1972
through December 31, 1997.

[GRAPH APPEARS HERE]  25 YEAR RETURN COMPARISON

The graph depicts how a $10,000 investment in the NAREIT Index, S&P 500 Index
and the DJIA in 1973, grows to $279,663, $215,209 and $212,683, respectively.
The plot points for the graph are provided below.

<TABLE>
<CAPTION>

                          NAREIT
                          Equity         S&P
                          Index        500 Index    DJIA
<S>                       <C>          <C>         <C> 
1973                       8,448        8,534       8,688
1974                       6,640        6,275       6,677
1975                       7,921        8,610       9,642
1976                      11,691       10,663      11,833
1977                      14,313        9,897      10,330
1978                      15,792       10,546      10,607
1979                      21,455       12,490      11,724
1980                      26,683       16,540      14,234
1981                      28,284       15,728      13,750
1982                      34,394       19,095      17,297
1983                      44,931       23,394      21,733
1984                      54,334       24,860      21,967
1985                      64,709       32,854      29,168
1986                      77,106       38,923      37,019
1987                      74,300       40,959      39,247
1988                      84,319       47,843      45,507
1989                      91,775       62,910      59,937
1990                      77,686       60,914      59,592
1991                     105,417       79,523      73,855
1992                     120,797       85,622      79,285
1993                     144,539       94,176      92,558
1994                     149,122       95,407      97,145
1995                     171,888      131,117     132,594
1996                     232,491      161,372     170,485
1997                     279,663      215,209     212,683
</TABLE>

     The past performance of the equity REITs set forth above is not
representative of the expected performance of the Trust, which contains a
significantly less diversified portfolio of REITS. In addition, past performance
is not indicative of future results. This illustration does not represent the
actual performance of any investment product. These unmanaged indices assume
reinvestment of dividends and income but do not include brokerage commissions or
other fees. The NAREIT Equity Index, S&P 500 Index and Dow Jones Industrial
Average are the property of the National Association of Real Estate
Investment Trusts, Standard & Poor's Corporation and Dow Jones & Company, Inc.,
respectively, which are not affiliated with the Sponsor and have not
participated in any way in the creation of the Trust or the selection of the
portfolio, and have not approved any information contained herein. Trust
performance will likely differ from past and future NAREIT Index returns because
the Portfolio will contain a less diversified portfolio of REITs and is subject
to sales charges, fees and expenses. The investment return and principal value
of the Portfolio will fluctuate with changes in market conditions. There can be
no assurance that the Portfolio will provide a positive return or outperform the
indices over its life. The returns for any period may be negative. An investment
in equity REITs provides only commercial real estate industry exposure which is
characterized by a lack of relative diversification as compared to an investment
in all of the common stocks which comprise a stock index.

                                     -11-
<PAGE>
 
Public Offering Price

     The Public Offering Price of the Units is based on the aggregate underlying
value of the Securities in the Trust (generally determined by the closing sale
prices of listed Securities and the ask prices of over-the-counter traded
Securities), plus or minus cash, if any, in the Income and Capital Accounts of
the Trust, plus an initial sales charge equal to the difference between the
Maximum Sales Charge as set forth in Part A of the Prospectus per Unit, if
applicable, and is rounded to the nearest cent. For Units created on the Initial
Date of Deposit no sales charge will apply. See "Unit Value and Evaluation." A
pro rata share of accumulated dividends, if any, in the Income Account 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 applicable to quantity purchases is reduced on a graduated
scale as set forth in Part A of this Prospectus. 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 graduated scale provided in Part A of this Prospectus,
based on the amount of intended aggregate purchases (excluding purchases which
are subject only to a deferred sales charge) as expressed in the letter of
intent. For purposes of letter of intent calculations units of equity products
are valued at $10 per unit. 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. A Unitholder who
purchases Units during the letter of intent period in excess of the number of
Units specified in a Unitholder's letter of intent, the amount of which would
cause the Unitholder to be eligible to receive an additional sales charge
reduction will be allowed such additional sales charge reduction on the purchase
of Units which caused the Unitholder to reach such new breakpoint level and on
all additional purchases of Units during the letter of intent period. 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 amount which would have been paid if the higher sales
charge had been applied; the Unitholder will, however, be entitled to any
reduced sales charge qualified for by reaching any lower breakpoint level. If
such Unitholder does not pay the additional amount within 20 days after written
request by 

                                     -12-
<PAGE>
 
the Sponsor or the Unitholder's securities representative, the Sponsor will
instruct the Trustee to redeem an appropriate number of the described 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.

     For "secondary market" sales the Public Offering Price per Unit of each
Trust is determined by adding to the Trustee's determination of the aggregate
value of each Security in the Trust (generally determined by the closing sale
prices of listed Securities and the bid prices of over-the-counter traded
Securities) a sales charge as set forth in Part A of this Prospectus. See "Unit
Value and Evaluation." The secondary market sales charge is reduced with respect
to quantity purchases in such amounts set forth in Part A of this Prospectus.

     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 total value of the Securities deposited in the Trust during the
primary offering period 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 Securities
in each Trust as of 4:00 p.m. eastern time, or as of any earlier closing time on
a day on which the New York Stock Exchange (the "Exchange") is scheduled in
advance to close at such earlier time and will adjust the Public Offering Price
of the Units commensurate with such appraisal ("Evaluation Time"). 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 or as of any
earlier closing time on a day on which the Exchange is scheduled in advance to
close at such earlier time. 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.

     The graduated sales charges set forth in the table provided in Part A of
this Prospectus 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
individuals and their spouses, parents, children, grandchildren, grandparents,
parents-in-law, sons- and daughters-in-law, siblings, a sibling's spouse and a
spouse's siblings ("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.,
The John Nuveen Company, including in each case these individuals and their
immediate family members (as defined above).

                                     -13-
<PAGE>
 
     Units may be purchased with a reduced sales charge as described for "wrap
accounts" under "Sales Charge" in Part A of the Prospectus 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 (collectively, the "Discounted
Purchases"). Notwithstanding anything to the contrary in this Prospectus,
investors who purchase Units as described in this paragraph will not receive
sales charge reductions for quantity purchases.

     Whether or not Units are being offered for sale, the Sponsor will determine
or cause to be determined 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 based upon the pro rata share per Unit
of the aggregate underlying value of the Securities in such Trust (generally
determined by the closing sale prices of listed Securities and the ask prices of
over-the-counter traded Securities). Afterward, although it is not obligated to
do so, the Sponsor may 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 aggregate
underlying value of the Securities in a Trust (generally determined by the
closing sale prices of listed Securities and the bid prices of over-the-counter
traded Securities). Unitholders who wish to dispose of their Units should
inquire of the Trustee or their broker as to the current Redemption Price. In
connection with its secondary market making 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 generally
purchase Units from the broker or dealer at the Redemption Price (as defined in
"Redemption") 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.

                                     -14-
<PAGE>
 
     In maintaining a market for the Units, the Sponsor will realize profits or
sustain losses in the amount of any difference between the price at which Units
are purchased and the price at which Units are resold or redeemed. The secondary
market Public Offering Price of Units may be greater or less than the cost of
such Units to the Sponsor.

     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, properly endorsed for transfer. (See "Redemption.")

Evaluation of Securities at the Initial Date of Deposit

     The prices at which the Securities deposited in the Trusts would have been
offered to the public on the business day prior to the Initial Date of Deposit
were determined by the Trustee.

     The amount by which the Trustee's determination of the aggregate value of
the Securities deposited in the Trusts was greater or less than the cost of such
Securities to the Sponsor was profit or loss to the Sponsor. (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.

Tax Status

     The following is a general discussion of certain of the Federal income tax
consequences of the purchase, ownership and disposition of the Units. The
summary is limited to investors who hold the Units as "capital assets"
(generally, property held for investment) within the meaning of Section 1221 of
the Internal Revenue Code of 1986 (the "Code"). Unitholders should consult their
tax advisers in determining the Federal, state, local and any other tax
consequences of the purchase, ownership and disposition of Units in a Trust. For
purposes of the following discussion and opinions, it is assumed that each
Security is considered a share in a REIT for Federal income tax purposes.

     In the opinion of Chapman and Cutler, special counsel for the Sponsor,
under existing law:

          1.   The Trust is not an association taxable as a corporation for
     Federal income tax purposes; each Unitholder will be treated as the owner
     of a pro rata portion of each of the assets of the Trust under the Code;
     and the income of the Trust will be treated as income of the Unitholders
     thereof under the Code. Each Unitholder 

                                     -15-
<PAGE>
 
will be considered to have received his pro rata portion of income derived from
each Trust asset when such income is considered to be received by the Trust.

     2.   Each Unitholder will have a taxable event when the Trust disposes of a
Security (whether by sale, taxable exchange, liquidation, redemption, or
otherwise) or upon the sale or redemption of Units by such Unitholder (except to
the extent an in-kind distribution of stock is received by such Unitholder as
described below). The price a Unitholder pays for his or her Units, generally
including sales charges, is allocated among his or her pro rata portion of each
Security held by the Trust (in proportion to the fair market values thereof on
the valuation date closest to the date the Unitholder purchases his or her
Units) in order to determine his or her tax basis for his or her pro rata
portion of each Security held by the Trust. Unitholders should consult their own
tax advisors with regard to the calculation of basis. For Federal income tax
purposes, a Unitholder's pro rata portion of dividends (other than capital gains
dividends of a REIT, as described below), as defined by Section 316 of the Code,
paid by a corporation with respect to a Security held by the Trust is taxable as
ordinary income to the extent of such corporation's current and accumulated
"earnings and profits." A Unitholder's pro rata portion of dividends paid on
such Security which exceeds such current and accumulated earnings and profits
will first reduce a Unitholder's tax basis in such Security, and to the extent
that such dividends exceed a Unitholder's tax basis in such Security shall
generally be treated as capital gain. In general, the holding period for such
capital gain will be determined by the period of time a Unitholder has held his
or her Units. The issuers of the Securities intend to qualify under special
Federal income tax rules as "real estate investment trusts" (each a "REIT,"
shares of such issuers held by the Trust shall be referred to collectively as
the "REIT Shares"). Because Unitholders are deemed to directly own a pro rata
portion of the REIT Shares as discussed above, Unitholders are advised to
consult their tax advisers for information relating to the tax consequences of
owning the REIT Shares. Provided an issuer qualifies as a REIT, certain
distributions by such issuers on the REIT Shares may qualify as "capital gain
dividends," taxable to shareholders (and, accordingly, to the Unitholders as
owners of a pro rata portion of the REIT Shares) as long-term capital gains,
regardless of how long a shareholders has owned such shares. In addition,
distributions of income or capital gains declared on REIT Shares in October,
November or December will be deemed to have been paid to shareholders (and,
accordingly, to Unitholders as owners of a pro rata portion of the REIT Shares)
on December 31 of the year they are declared, even when paid by a REIT during
the following January and received by shareholders or Unitholders in such
following year.

     3.   A Unitholder's portion of gain, if any, upon the sale or redemption of
Units or the disposition of Securities held by the Trust will generally be
considered a capital gain (except in the case of a dealer or a financial
institution). A Unitholder's portion of loss, if any, upon the sale or
redemption of Units or the disposition of Securities held by the Trust will
generally be considered a capital loss (except in the case of a dealer or a
financial institution) Unitholders should consult their tax advisors regarding
the recognition of such capital gains and losses for Federal income tax

                                     -16-
<PAGE>
 
     purposes as special rules described below apply to a Unitholder's pro rata
     portion of REIT Shares.

     Dividends Received Deduction. Dividends received on the Securities (as long
as such Securities qualify as REIT shares) are not eligible for the corporate
dividends received deduction.

     Limitations on Deductibility of Trust Expenses by Unitholders. Each
Unitholder's pro rata share of each expense paid by the Trust is deductible by
the Unitholder to the same extent as though the expense had been paid directly
by him or her. It should be noted that as a result of the Tax Reform Act of
1986, certain miscellaneous itemized deductions, such as investment expenses,
tax return preparation fees and employee business expenses will be deductible by
an individual only to the extent they exceed 2% of such individual's adjusted
gross income. Unitholder's may be required to treat some or all of the expenses
of the Trust as miscellaneous itemized deductions subject to this limitation.

     Recognition of Taxable Gain or Loss Upon Disposition of Securities by a
Trust or Disposition of Units. As discussed above, a Unitholder may recognize
taxable gain (or loss) when a Security is disposed of by the Trust or if the
Unitholder disposes of a Unit. However, any loss realized by a Unitholder with
respect to the disposition of his or her pro rata portion of the REIT Shares, to
the extend such Unitholder has owned his or her Units for less than six months
or the Trust has held the REIT Shares for less than six months, will be treated
as long-term capital loss to the extent of such Unitholder's pro rata portion of
any capital gain dividends received (or deemed to have been received) with
respect to the REIT Shares. For taxpayers other than corporations, net capital
gain (which is defined as net long-term capital gain over net short-term capital
loss for the taxable year) is subject to a maximum marginal stated tax rate of
either 28% or 20%, depending upon the holding periods of the capital assets.
Capital gain or loss is long-term if the holding period for the asset is more
than one year, and is short-term if the holding period for the asset is one year
or less. Generally, capital gains realized from assets held for more than one
year but not more than 18 months are taxed at a maximum marginal stated tax rate
of 28% and capital gains realized from assets (with certain exclusions) held for
more than 18 months are taxed at a maximum marginal stated tax rate of 20% (10%
in the case of certain taxpayers in the lowest tax bracket). Further, capital
gains realized from assets held for one year or less are taxed at the same rates
as ordinary income. Legislation is currently pending that provides the
appropriate methodology that should be applied in netting the realized capital
gains and losses. Such legislation is proposed to be effective retroactively for
tax years ending after May 6, 1997. The date on which a Unit is acquired (i.e.,
the "trade date") is excluded for purposes of determining the holding period of
a Unit. However, it should be noted that legislative proposals are introduced
from time to time that affect tax rates and could affect relative differences at
which ordinary income and capital gains are taxed.

     In addition, please note that capital gains may be recharacterized as
ordinary income in the case of certain financial transactions that are
"conversion transactions" effective for transactions entered into after
April 30, 1993. Unitholders and prospective investors should 

                                     -17-
<PAGE>
 
consult with their tax advisers regarding the potential effect of this provision
on their investment in Units.

     If the Unitholder disposes of a Unit, he or she is deemed thereby to have
disposed of his or her entire pro rata interest in all assets of the Trust
including his or her pro rata portion of all the Securities represented by the
Unit.

     The Taxpayer Relief Act of 1997 (the "1997 Act") includes provisions that
treat certain transactions designed to reduce or eliminate risk of loss and
opportunities for gain (e.g., short sales, offsetting notional principal
contracts, futures or forward contracts or similar transactions) as constructive
sales for purposes of recognition of gain (but not loss) and for purposes of
determining the holding period. Unitholders should consult their own tax
advisors with regard to any such constructive sales rules.

     Special Tax Consequences of In-Kind Distributions Upon Redemption of Units,
Termination of a Trust and Investment in a New Trust. As discussed in
"Redemption" and "Other information -- Termination of Indenture," under certain
circumstances a Unitholder who owns at least 2,500 Units of a Trust may request
an In-Kind Distribution upon the redemption of Units or the termination of such
Trust. The Unitholder requesting an In-Kind Distribution will be liable for
expenses related thereto (the "Distribution Expenses") and the amount of such
In-Kind Distribution will be reduced by the amount of the Distribution Expenses.
See "Distributions to Unitholders." As previously discussed, prior to the
redemption of Units or the termination of a Trust, a Unitholder is considered as
owning a pro rata portion of each of the Trust's assets for Federal income tax
purposes. The receipt of an In-Kind Distribution upon the redemption of Units or
the termination of a Trust will result in a Unitholder receiving an undivided
interest in whole shares of stock plus, possibly, cash.

     The potential tax consequences that may occur under an In-Kind Distribution
will depend on whether or not a Unitholder receives cash in addition to
Securities. A "Security" for this purpose is a particular class of stock issued
by a particular corporation. A Unitholder will not recognize gain or loss if a
Unitholder only receives Securities in exchange for his or her pro rata portion
in the Securities held by the Trust. However, if a Unitholder also receives cash
in exchange for a fractional share of a Security held by the Trust, such
Unitholder will generally recognize gain or loss based upon the difference
between the amount of cash received by the Unitholder and his or her tax basis
in such fractional share of a Security held by the Trust.

     Because the Trust will own many Securities, a Unitholder who requests an
In-Kind Distribution will have to analyze the tax consequences with respect to
each Security owned by the Trust. The amount of taxable gain (or loss)
recognized upon such exchange will generally equal the sum of the gain (or loss)
recognized under the rules described above by such Unitholder with respect to
each Security owned by the Trust. Unitholders who request an In-Kind
Distribution are advised to consult their tax advisers in this regard.

                                     -18-
<PAGE>
 
     Computation of the Unitholder's Tax Basis. Initially, a Unitholder's tax
basis in his or her Units will generally equal the price paid by such Unitholder
for his or her Units. The cost of the Units is allocated among the Securities
held by the Trust in accordance with the proportion of the fair market values of
such Securities on the valuation date nearest the date his Units are purchased
in order to determine such Unitholder's tax basis for his or her pro rata
portion of each Security.

     A Unitholder's tax basis in his or her Units and his or her pro rata
portion of a Security held by the Trust will be reduced to the extent dividends
paid with respect to such Security are received by the Trust which are not
taxable as ordinary income as described above.

     General. Each Unitholder will be requested to provide the Unitholder's
taxpayer identification number to the Trustee and to certify that the Unitholder
has not been notified that payments to the Unitholder are subject to back-up
withholding. If the proper taxpayer identification number and appropriate
certification are not provided when requested, distributions by the Trust to
such Unitholder (including amounts received upon the redemption of Units) will
be subject to back-up withholding. Distributions by the Trust (other than those
that are not treated as United States source income, if any) will generally be
subject to United States income taxation and withholding in the case of Units
held by non-resident alien individuals, foreign corporations or other non-United
States persons. Such persons should consult their tax advisers.

     In general, income that is not effectively connected to the conduct of a
trade or business within the United States that is earned by non-U.S.
Unitholders and derived from dividends of foreign corporations will not be
subject to U.S. withholding tax provided that less than 25 percent of the gross
income of the foreign corporation for a three-year period ending with the close
of its taxable year preceding payment was not effectively connected to the
conduct of a trade or business within the United States. In addition, such
earnings may be exempt from U.S. withholding pursuant to a specific treaty
between the United States and a foreign country. Non-U.S. Unitholders should
consult their own tax advisers regarding the imposition of U.S. withholding on
distributions from the Trust.

     It should be noted that payments to the Trust of dividends on Equity
Securities that are attributable to foreign corporations may be subject to
foreign withholding taxes and Unitholders should consult their own tax advisers
regarding the potential tax consequences relating to the payment of any such
withholding taxes by the Trust. Any dividends withheld as a result thereof will
nevertheless be treated as income to the Unitholders. Because, under the grantor
trust rules, an investor is deemed to have paid directly his share of foreign
taxes that have been paid or accrued, if any, an investor may be entitled to a
foreign tax credit or deduction for United States purposes with respect to such
taxes. The 1997 Act imposes a required holding period for such credits.
Investors should consult their tax advisers with respect to foreign withholding
taxes and foreign tax credits.

     At the termination of the Trust, the Trustee will furnish to each
Unitholder a statement containing information relating to the dividends received
by the Trust on the 

                                     -19-
<PAGE>
 
Securities, the gross proceeds received by the Trust from the disposition of any
Security (resulting from redemption or the sale of any Security) and the fees
and expenses paid by the Trust. The Trustee will also furnish annual information
returns to Unitholders and the Internal Revenue Service.

     Unitholders desiring to purchase Units for tax-deferred plans and IRAs
should consult their broker for details on establishing such accounts. Units may
also be purchased by persons who already have self-directed plans established.
See "Retirement Plans."

     The foregoing discussion relates only to the tax treatment of U.S.
Unitholders ("U.S. Unitholder") with regard to federal and certain aspects of
New York State and City income taxes. Unitholders may be subject to taxation in
New York or in other jurisdictions and should consult their own tax advisers in
this regard. As used herein, the term "U.S. Unitholder" means an owner of a Unit
in the Trust that (a) is (i) for United States federal income tax purposes a
citizen or resident of the United States, (ii) a corporation, partnership or
other entity created or organized in or under the laws of the United States or
of any political subdivision thereof, or (iii) an estate or trust the income of
which is subject to United States federal income taxation regardless of its
source or (b) does not qualify as a U.S. Unitholder in paragraph (a) but whose
income from a Unit is effectively connected with such Unitholder's conduct of a
United States trade or business. The term also includes certain former citizens
of the United States whose income and gain on the Units will be taxable.

     In the opinion of Carter, Ledyard & Milburn, Special Counsel to the Trusts
for New York tax matters, under the existing income tax laws of the State 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 thereof.

Retirement Plans

     Units of the Trusts may be well suited for purchase by Individual
Retirement Accounts, Keogh Plans, pension funds and other tax-deferred
retirement plans. Generally the Federal income tax relating to capital gains and
income received in each of the foregoing plans is deferred until distributions
are received. Distributions from such plans are generally treated as ordinary
income but may, in some cases, be eligible for special averaging or tax-deferred
rollover treatment. Investors considering participation in any such plan should
review specific tax laws related thereto and should consult their attorneys or
tax advisers with respect to the establishment and maintenance of any such plan.
Such plans are offered by brokerage firms and other financial institutions. Fees
and charges with respect to such plans may vary.

Trust Operating Expenses

     No annual advisory fee is charged to the Trusts by the Sponsor. Estimated
annual Trust expenses are as set forth in Part A of this Prospectus; if actual
expenses are higher 

                                     -20-
<PAGE>
 
than the estimate, the excess will be borne by the Trust. The estimated expenses
do not include the brokerage commissions payable by the Trust in purchasing and
selling Securities.

     The Trustee receives for ordinary recurring services an annual fee for each
Trust as set forth in "Expense Information" appearing in Part A of this
Prospectus. 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 Income and Capital 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 Trusts is expected to result from such use
of these funds.

     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, the initial
evaluation, legal fees, the initial fees and expenses of the Trustee, and any
other non-material out-of-pocket expenses, will be amortized and paid by the
Trust. 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 Securities 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 counsel
which the Trustee may retain) sustained or incurred by the Trustee in connection
therewith; and (4) and losses or liabilities accruing to the Trustee without
negligence, bad faith or willful misconduct on its part. The Trustee is
empowered to sell Securities in order to pay these amounts if funds are not
otherwise available in the applicable Income and Capital Accounts.

Distributions to Unitholders

     The Trustee will distribute any net income received with respect to any of
the Securities in a Trust on or about the Income Distribution Dates to
Unitholders of record on the preceding Income Record Date. See "Distributions"
in Part A of this Prospectus. Persons who purchase Units will commence receiving
distributions only after such person becomes a Record Owner. Notification to the
Trustee of the transfer of Units is the responsibility of the purchaser, but in
the normal course of business such notice is provided by the selling
broker/dealer. Proceeds received on the sale of any Securities in a Trust, to
the extent not used to meet redemptions of Units or pay expenses will, however,
be distributed on the last day of each month if the amount available for
distribution equals at 

                                     -21-
<PAGE>
 
least $1.00 per 100 Units ("Capital Distribution Dates") to Unitholders of
record on the fifteenth day of each applicable month ("Capital Record Dates")
and December 31 of each year to Unitholders of record on December 15. The
Trustee is not required to pay interest on funds held in the Capital Account of
a Trust (but may itself earn interest thereon and therefore benefit from the use
of such funds). A Unitholder's pro rata portion of the Capital Account, less
expenses, will be distributed as part of the final liquidation distribution.

     Under regulations issued by the Internal Revenue Service, the Trustee is
required to withhold a specified percentage of any distribution made by a Trust
if the Trustee has not been furnished the 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 under certain circumstances by contacting the Trustee, otherwise the
amount may be recoverable only when filing a tax return. Under normal
circumstances the Trustee obtains the Unitholder's tax identification number
from the selling broker. However, a Unitholder should examine his or her
statements from the Trustee to make sure that the Trustee has been provided a
certified tax identification number in order to avoid this possible "back-up
withholding." In the event the Trustee has not been previously provided such
number, one should be provided as soon as possible.

     Within a reasonable time after a Trust is terminated each Unitholder will,
upon surrender of his Units for redemption, receive (i) the pro rata share of
the amounts realized upon the disposition of Securities, unless he or she elects
an In-Kind Distribution as described under "Redemption" and (ii) a pro rata
share of any other assets of such Trust, less expenses of such Trust.

     The Trustee will credit to the Income Account of a Trust any dividends
received on the Securities therein. All other receipts (e.g., return of capital,
etc.) are credited to the Capital Account of the Trust.

     The Trustee may establish reserves (the "Reserve Account") within the Trust
for state and local taxes, if any and any governmental charges payable out of
such Trust.

     Distribution Reinvestment. Any Unitholder may elect to have each
distribution of income on his Units, other than the final liquidating
distribution in connection with the termination of a Trust, automatically
reinvested in additional Units of such Trust. Each person who purchases Units of
a Trust may elect to participate in the reinvestment option by notifying the
Trustee in writing of their election. Reinvestment may not be available in all
states. Notification to the Trustee must be received within 10 days prior to the
Record Date for such distributions. Each subsequent distribution of income
and/or capital, as selected by the Unitholder will be automatically applied by
the Trustee to purchase additional Units of a Trust. No sales charge will be
assessed on Units acquired pursuant to reinvestment. It should be remembered
that even if distributions are reinvested, they are still treated as
distributions for income tax purposes.

                                     -22-
<PAGE>
 
Accumulation Plan

     The Sponsor is also the principal underwriter of several open-end mutual
funds (the "Accumulation Funds") into which Unitholders may choose to reinvest
Trust distributions. Unitholders may elect to reinvest income and capital
distributions automatically, without any sales charge. 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. Further information concerning the Accumulation Plan and a list of
Accumulation Funds is set forth in the Information Supplement of this
Prospectus, which may be obtained by contacting the Trustee at the phone number
listed on the back cover of this Prospectus.

     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 capital only reinvestment to reinvestment of both
capital and income or vice versa, or to terminate their participation in the
Accumulation Plan altogether and receive future distributions on their Units in
cash. Such notice will be effective as of the next Record Date occurring at
least 10 days after the Trustee's receipt of the notice. 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.

Reports to Unitholders

     The Trustee shall furnish Unitholders of a Trust in connection with each
distribution, a statement of the amount of income, if any, and the amount of
other receipts (received since the preceding distribution) being distributed,
expressed in each case a dollar amount representing the pro rata share of each
Unit of a Trust outstanding. 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 (1) a summary of transactions in the Trust for such
year; (2) any Security sold during the year and the Securities held at the end
of such year by the Trust; (3) the redemption price per Unit based upon a
computation thereof on the 31st day of December of such year (or the last
business day prior thereto); and (4) amounts of income and capital distributed
during such year.

     In order to comply with Federal and state tax reporting requirements,
Unitholders will be furnished, upon request to the Trustee, evaluations of the
Securities in the Trust furnished to it by the Sponsor.

Unit Value and Evaluation

     The value of the Trust is determined by the Trustee on the basis of (1) the
cash on hand in the Trust other than cash deposited in the Trust to purchase
Securities not applied to the purchase of such Securities; (2) the aggregate
value of the Securities held in the Trust, as 

                                     -23-
<PAGE>
 
determined by the Evaluator on the basis of the aggregate underlying value of
the Securities in the Trust next computed; (3) dividends receivable on the
Securities trading ex-dividend as of the date of computation; (4) amounts
representing organizational expenses paid from the Trust less amounts
representing accrued organizational expenses of the Trust; and (5) all other
assets of the Trust; and deducting therefrom: (1) amounts representing any
applicable taxes or governmental charges and amounts due the Sponsor or Trustee
for indemnification or extraordinary expenses payable out of such Trust for
which no deductions had been made for the purpose of additions to the Reserve
Account; (2) any amounts owing to the Trustee for its advances; (3) an amount
representing estimated accrued expenses of the Trust, including, but not limited
to, unpaid fees and expenses of the Trustee (including legal fees) and the
Sponsor; (4) cash held for distribution to Unitholders of record of the Trust or
for redemption of tendered Units as of the business day prior to the evaluation
being made; and (5) other liabilities incurred by the Trust. The result of such
computation is divided by the number of Units of such Trust outstanding as of
the date thereof and rounded to the nearest cent to determine the per Unit value
("Unit Value") of such Trust. The Trustee may determine the aggregate value of
the Securities in the Trust in the following manner: if the Securities are
listed on a securities exchange of the NASDAQ National Market System, this
evaluation is generally based on the closing sale price on that exchange or that
system (unless it is determined that these prices are inappropriate as a basis
for valuation) or, if there is no closing sale price on that exchange or system,
at the closing bid prices. If the Securities are not so listed or, if so listed
and the principal market therefor is other than on a securities exchange, the
evaluation shall generally be based on the current bid prices on the over-the-
counter market (unless these prices are inappropriate as a basis for
evaluation). If current bid prices are unavailable, the evaluation is generally
determined (a) on the basis of current bid prices for comparable securities,
(b) by appraising the value of the Securities on the bid side of the market or
(c) by any combination of the above.

Distributions of Units to the Public

     Nuveen, in addition to being the Sponsor, is the sole Underwriter of the
Units. It is the intention of the Sponsor to qualify Units of the Trusts for
sale under the laws of substantially all of the states of the United States of
America.

     Promptly following the deposit of Securities 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 tune 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 $1,000 or 100 Units ($500 or nearest
whole number of Units whose value is less than $500 for Education IRA
purchases), whichever is less. The Sponsor reserves the right to reject, in
whole or in part, any order for the purchase of Units.

                                     -24-
<PAGE>
 
     The Sponsor plans to allow a discount to brokers and dealers in connection
with the distribution of Units. The amounts of such discounts are set forth in
Part A of this Prospectus.

     The Sponsor may maintain a secondary market for Units of each Trust. See
"Market for Units."

     The Sponsor reserves the right to change the amount of the dealer
concessions set forth in Part A of this Prospectus from time to time.

     At the discretion of the Sponsor, volume incentives can be earned as a
marketing allowance by dealer firms who reach cumulative firm sales or sales
arrangement levels of a specified number of Units of an individual Trust during
the primary offering period as set forth in the table below. For firms that meet
the necessary volume level for a Trust, volume incentives may be given on all
trades involving that Trust originated from or by that firm during the primary
offering period.

Primary Market Volume Incentives
<TABLE>
<CAPTION>
        Per Trust Sales Level During                       Volume Incentive
        the Primary Offering Period                            Per Unit
<S>                                                        <C>
     500,000 but less than 1,000,000 Units                      $0.005
     1,000,000 but less than 2,000,000 Units                    $0.010
     2,000,000 Units or more                                    $0.020
</TABLE>
     Only sales through the Sponsor qualifying for volume incentives and for
meeting minimum requirements. The Sponsor reserves the right to modify or change
the volume incentive schedule at any time and make the determination as to which
firms qualify for the marketing allowance and the amount paid.

     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 any sales made
to investors which qualified as "Discounted Purchases" during the primary or
secondary market. (See "Public Offering Price.")

     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 

                                     -25-
<PAGE>
 
transactions 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 registered Certificates unless the
Unitholder expressly requests that ownership be evidenced by a book entry
position recorded on the books and records of the Trustee. 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 Unitholder will receive a Book Entry Position Confirmation reflecting
their ownership.

     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 Unitholders. 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.

                                     -26-
<PAGE>
 
Redemption

     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 Unitholders. 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 authorized person. The time a telephone redemption request is received
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, or as of any earlier closing time on a day on which the Exchange is
scheduled in advance to close at such earlier time, on the date of tender as
defined hereafter ("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 Securities 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 as of any
earlier closing time on a day on which the Exchange is scheduled in advance to
close at such earlier time, or on any day on which 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.

                                     -27-
<PAGE>
 
     Any Unitholder tendering 2,500 Units or more for redemption may request by
written notice submitted at the time of tender from the Trustee, in lieu of a
cash redemption, a distribution of shares of Securities in an amount and value
of Securities per Unit equal to the Redemption Price Per Unit, as determined as
of the evaluation next following tender. In-kind distributions ("In-Kind
Distributions") shall be made by the Trustee through the distribution of each of
the Securities in book-entry form to the account of the Unitholder's bank or
broker/dealer at the Depository Trust Company. An In-Kind Distribution will be
reduced by customary transfer and registration charges. The tendering Unitholder
will receive his pro rata number of whole shares of each of the Securities
comprising a portfolio and cash from the Capital Account equal to the fractional
shares to which the tendering Unitholder is entitled. The Trustee may adjust the
number of shares of any issue of Securities included in a Unitholder's In-Kind
Distribution to facilitate the distribution of whole shares, such adjustment to
be made on the basis of the value of Securities on the date of tender. If funds
in the Capital Account are insufficient to cover the required cash distribution
to the tendering Unitholder, the Trustee may sell Securities in the manner
described below.

     Under regulations issued by the Internal Revenue Service, the Trustee may
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. For further
information regarding this withholding, see "Distributions to Unitholders." In
the event the Trustee has not been previously provided such number, one must be
provided at the time redemption is requested.

     Any amounts paid on redemption representing income shall be withdrawn from
the Income Account of a Trust to the extent that funds are available for such
purpose, or from the Capital Account. All other amounts paid on redemption shall
be withdrawn from the Capital Account.

     The Trustee is empowered to sell Securities of the Trusts in order to make
funds available for redemption. To the extent that Securities are sold, the size
and diversity of the Trust will be reduced. Such sales may be required at a time
when Securities would not otherwise be sold and might result in lower prices
than might otherwise be realized.

     The Redemption Price per Unit during the secondary market will be
determined on the basis of the aggregate underlying value of the Securities in a
Trust plus or minus cash, if any, in the Income and Capital Accounts of such
Trust. The Redemption Price per Unit is equal to the pro rata share of each Unit
determined by the Trustee by adding: (1) the cash on hand in the Trust other
than cash deposited in the Trust to purchase Securities not applied to the
purchase of such Securities; (2) the aggregate underlying value of the
Securities held in such Trust, as determined by the Trustee on the basis of the
evaluation next computed; and (3) dividends receivable on the Securities trading
ex-dividend as of the date of computation; and deducting therefrom: (1) amounts
representing any applicable taxes or governmental charges payable out of such
Trust; (2) any amounts owing to the Trustee for its advances; (3) an amount
representing estimated accrued expenses of such Trust, including but not limited
to fees and expenses of the Trustee (including legal fees), and

                                     -28-
<PAGE>
 
supervisory fees, if any; (4) cash held for distribution to Unitholders of
record of such Trust or for redemption of tendered Units as of the business day
prior to the evaluation being made; and (5) other liabilities incurred by such
Trust; and finally dividing the results of such computation by the number of
Units of such Trust outstanding as of the date thereof.

     The aggregate value of the Securities for purposes of the Redemption Price
during the secondary market and the Secondary Market Public Offering Price will
be determined in the following manner: if the Securities are listed on a
securities exchange or the NASDAQ National Market System, this evaluation is
generally based on the closing sale prices on that exchange or that system
(unless it is determined that these prices are inappropriate as a basis for
valuation) or, if there is no closing sale price on that exchange or system, at
the closing bid prices. If the Securities are not so listed or, if so listed and
the principal market therefor is other than on a securities exchange, the
evaluation shall generally be based on the current bid prices on the over-the-
counter market (unless these prices are inappropriate as a basis for
evaluation). If current bid prices are unavailable, the evaluation is generally
determined (a) on the basis of current bid prices for comparable securities, (b)
by appraising the value of the Securities on the bid side of the market or (c)
by any combination of the above.

     The right of redemption may be suspended and payment postponed for any
period during which the New York Stock Exchange is closed, other than for
customary weekend and holiday closings, or during which the Securities and
Exchange Commission determines that trading on the New York Stock Exchange is
restricted or any emergency exists, as a result of which disposal or evaluation
of the Securities is not reasonably practicable, or for such other periods as
the Securities and Exchange Commission may by order permit. Under certain
extreme circumstances, the Sponsor may apply to the Securities and Exchange
Commission for an order permitting a full or partial suspension of the right of
Unitholders to redeem their Units. The Trustee is not liable to any person in
any way for any loss or damage which may result from any such suspension or
postponement.

Purchase of Units 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 "Redemption.") 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.

Removal of Securities from the Trusts

     The portfolio of the Trust is not "managed" by the Sponsor or the Trustee;
their activities described herein are governed solely by the provisions of the
Indenture. The Indenture provides that the Sponsor may (but need not) direct the
Trustee to dispose of a

                                     -29-
<PAGE>
 
Security in the event that an issuer defaults in the payment of a dividend that
has been declared, that any action or proceeding has been instituted restraining
the payment of dividends or there exists any legal question or impediment
affecting such Security, that the issuer of the Security has breached a covenant
which would affect the payments of dividends, the credit standing of the issuer
or otherwise impair the sound investment character of the Security, that the
issuer has defaulted on the payment on any other of its outstanding obligations,
that the price of the Security declined to such an extent or other such credit
factors exist so that in the opinion of the Sponsor, the retention of such
Securities would be detrimental to a Trust. Except as stated under "Composition
of Trusts" for Failed Securities, the acquisition by a Trust of any securities
or other property other than the Securities is prohibited. Pursuant to the
Indenture and with limited exceptions, the Trustee may sell any securities or
other property acquired in exchange for Securities such as those acquired in
connection with a merger or other transaction. If offered such new or exchanged
securities or properties, the Trustee shall reject the offer. However, in the
event such securities or property are nonetheless acquired by a Trust, they may
be accepted for deposit in a Trust and either sold by the Trustee or held in a
Trust pursuant to the direction of the Sponsor. Proceeds from the sale of
Securities by the Trustee are credited to the Capital Account of a Trust for
distribution to Unitholders or to meet redemptions.

     The Trustee may also sell Securities designated by the Sponsor, or if not
so directed, in its own discretion, for the purpose of redeeming Units of a
Trust tendered for redemption and the payment of expenses.

     The Sponsor, in designating Securities to be sold by the Trustee, will
generally make selections in order to maintain, to the extent practicable, the
proportionate relationship among the number of shares of individual issues of
Securities. To the extent this is not practicable, the composition and diversity
of the Securities may be altered. In order to obtain the best price for a Trust,
it may be necessary for the Sponsor to specify minimum amounts (generally 100
shares) in which blocks of Securities are to be sold.

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 Securities. In the event of the failure of the

                                     -30-
<PAGE>
 
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 Securities 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.

     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

     Since our founding in 1898, Nuveen has been synonymous with investments
that withstand the test of time. Today, we offer a broad range of investments
designed for mature investors whose portfolio is the principal source of their
ongoing financial security. More than 1.3 million investors have entrusted
Nuveen to help them maintain the lifestyle they currently enjoy.

     A value investing approach -- purchasing securities of strong companies and
communities that represent good long-term value -- is the cornerstone of 
Nuveen's

                                     -31-
<PAGE>
 
investment philosophy. It is a careful, long-term strategy that offers the
potential for consistent, attractive returns with moderated risk. Successful
value investing begins with in-depth research and a discerning eye for
marketplace opportunity. Nuveen's team of investment professionals is backed by
the discipline, resources and expertise of a century of investment experience,
including one of the most recognized research departments in the industry.

     To meet the unique circumstances and financial planning needs of mature
investors, Nuveen offers a wide array of taxable and tax-free investment
products -- including equity and fixed-income mutual funds, unit trusts, 
exchange-traded funds, customized asset management services and cash management
products.

     Nuveen is a subsidiary of The John Nuveen Company which, in turn, is
approximately 78% owned by the St. Paul Companies, Inc. ("St. Paul"). St. Paul
is located in St. Paul, Minnesota and is principally engaged in providing
property-liability insurance through subsidiaries. Nuveen 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 West Wacker
Drive). Nuveen maintains eight regional offices.

     To help advisers and investors better understand and more efficiently use
an investment in the Trusts 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 Sponsor may produce
software or additional sales literature to promote the advantages of using the
Trusts 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, without the consent of
100% of the Unitholders, to permit the deposit or acquisition of securities
either in addition to, or in substitution for any of the Securities initially
deposited in any Trust except as stated in "Composition of Trusts" regarding the
creation of additional Units and the limited right of substitution of
Replacement Securities and except for the substitution of refunding securities
under certain circumstances. The Trustee shall advise the Unitholders of any
amendment requiring the consent of Unitholders, or upon request of the Sponsor,
promptly after execution thereof

                                     -32-
<PAGE>
 
Termination of Indenture

     The Trust may be liquidated at any time by an instrument executed by the
Sponsor and consented to by 66-2/3% of the Units of the Trust then outstanding.
The Trust may also be liquidated by the Trustee when the value of such Trust, as
shown by any evaluation, is less than 20% of the total value of the Securities
deposited in the Trust as of the conclusion of the primary offering period and
may 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. The sale of Securities from the Trust 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 amount of Securities originally represented by the Units held by such
Unitholder. The Indenture will terminate upon the redemption, sale or other
disposition of the last Security held thereunder, but in no event shall it
continue beyond the Mandatory Termination Date set forth under "Essential
Information" in Part A of this Prospectus.

     Commencing on the Mandatory Termination Date, Securities will begin to be
sold in connection with the termination of the Trust. The Sponsor will determine
the manner, timing and execution of the sale of the Securities. Written notice
of any termination of a Trust specifying the time or times at which Unitholders
may surrender their certificates for cancellation shall be given by the Trustee
to each Unitholder at his address appearing on the registration books of such
Trust maintained by the Trustee. Unitholders not electing a distribution of
shares of Securities will receive a cash distribution from the sale of the
remaining Securities within a reasonable time after the Trust is terminated.
Regardless of the distribution involved, the Trustee will deduct from the funds
of a Trust any accrued costs, expenses, advances or indemnities provided by the
Indenture, including estimated compensation of the Trustee and costs of
liquidation and amounts required as a reserve to provide for payment of any
applicable taxes or other governmental charges. Trustee will then distribute to
each Unitholder his pro rata share of the balance of the Income and Capital
Accounts.

Legal Opinion

     The legality of the Units offered hereby has been passed upon by Chapman
and Cutler, 111 West Monroe Street, Chicago, Illinois 60603. Carter, Ledyard &
Milburn, 2 Wall Street, New York, New York 10005, has acted as counsel for the
Trustee with respect to the Series.

Auditors

     The "Statement of Condition" and "Schedule of Investment" at Initial 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

                                     -33-
<PAGE>
 
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. This
supplement includes additional general information about the Sponsor and the
Trusts.

                                     -34-
<PAGE>
 
                (This page has been left blank intentionally.)

<PAGE>
 
                              Nuveen Unit Trusts

                   Nuveen Real Estate Opportunity Portfolio
                             Prospectus -- Part B


                                 June __, 1998

<TABLE>
<S>                                               <C>
Sponsor                                           John Nuveen & Co. Incorporated
                                                  333 West Wacker Drive
                                                  Chicago, IL  60606-1286

Trustee                                           The Chase Manhattan Bank
                                                  4 New York Plaza
                                                  New York, NY  10004-2413
                                                  Telephone:  800-257-8787

Legal Counsel to Sponsor                          Chapman and Cutler
                                                  111 West Monroe Street
                                                  Chicago, IL  60603

Independent Public Accountants for the Trust      Arthur Andersen LLP
                                                  33 West Monroe Street
                                                  Chicago, IL  60603
</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.

     When Units of the Trusts are no longer available, or for investors who will
reinvest into subsequent series of the Trusts, this Prospectus may be used as a
preliminary prospectus for a future series; in which case investors should note
the following:

     Information contained herein is subject to amendment. A registration
statement relating to securities of a future series has been filed with the
Securities and Exchange Commission. These securities may not be sold nor may
offers to buy be accepted prior to the time the registration statement becomes
effective.

     The Prospectus shall not constitute an offer to sell or the solicitation of
an offer to buy nor shall there be any sale of these securities in any State in
which such offer, solicitation or sale would be unlawful prior to registration
or qualification under the securities laws of any such State.

     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 Unit Investment Trusts under the Investment Company Act of
1940, as amended. Such registration does not imply that the Trusts or any of
their Units have been guaranteed, sponsored, recommended or approved by the
United States or any State or agency or officer thereof.

<PAGE>
 
                              Nuveen Unit Trusts
              Nuveen Real Estate Opportunity Portfolio Prospectus
                                 June __, 1998
                   Nuveen Unit Trusts Information Supplement

                         Nuveen Unit Trusts, Series 13

     The Information Supplement provides additional information concerning the
structure and operations of a Nuveen 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 June __, 1998. Capitalized terms have
been defined in the Prospectus.
<PAGE>
 
                               Table of Contents

Accumulation Plan

Information About the Sponsor

Historical Performance of Asset Classes and Balanced Portfolios



<PAGE>
 
Accumulation Plan

     The Sponsor, John Nuveen & Co. Incorporated, is also the principal
underwriter of the Accumulation Funds listed 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. Unitholders may reinvest both interest and capital
distributions or capital 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 a wholly-owned
subsidiary of the Sponsor. Unitholders should contact their financial adviser or
the Sponsor to determine which of the Accumulation Funds they may reinvest into,
as reinvestment in certain of the Accumulation Funds may be restricted to
residents of a particular state or states. Unitholders may obtain a prospectus
for each Accumulation Fund through their financial adviser or through the
Sponsor at (800) 321-7227. For a more detailed description, Unitholders should
read the prospectus of the Accumulation Fund in which they are interested.

     The following is a complete list of the Accumulation Funds currently
available, as of the Date of Deposit of this Prospectus, to Unitholders under
the Accumulation Plan. The list of available Accumulation Funds is subject to
change without the consent of any of the Unitholders.

Accumulation Funds

Mutual Funds

Nuveen Flagship Municipal Trust

     Nuveen Municipal Bond Fund
     Nuveen Insurer Municipal Bond Fund
     Nuveen Flagship All-American Municipal Bond Fund
     Nuveen Flagship Limited Term Municipal Bond Fund
     Nuveen Flagship Intermediate Municipal Bond Fund

Nuveen Flagship Multistate Trust I

     Nuveen Flagship Arizona Municipal Bond Fund
     Nuveen Flagship Colorado Municipal Bond Fund
     Nuveen Flagship Florida Municipal Bond Fund
     Nuveen Flagship Florida Intermediate Municipal Bond Fund
     Nuveen Maryland Municipal Bond Fund
     Nuveen Flagship New Mexico Municipal Bond Fund


                                      -3-
<PAGE>
 
     Nuveen Flagship Pennsylvania Municipal Bond Fund
     Nuveen Flagship Virginia Municipal Bond Fund

Nuveen Flagship Multistate Trust II

     Nuveen California Municipal Bond Fund
     Nuveen California Insured Municipal Bond Fund
     Nuveen Flagship Connecticut Municipal Bond Fund
     Nuveen Massachusetts Municipal Bond Fund
     Nuveen Massachusetts Insured Municipal Bond Fund
     Nuveen Flagship New Jersey Municipal Bond Fund
     Nuveen Flagship New Jersey Intermediate Municipal Bond Fund
     Nuveen Flagship New York Municipal Bond Fund
     Nuveen New York Insured Municipal Bond Fund

Nuveen Flagship Multistate Trust III

     Nuveen Flagship Alabama Municipal Bond Fund
     Nuveen Flagship Georgia Municipal Bond Fund
     Nuveen Flagship Louisiana Municipal Bond Fund
     Nuveen Flagship North Carolina Municipal Bond Fund
     Nuveen Flagship South Carolina Municipal Bond Fund
     Nuveen Flagship Tennessee Municipal Bond Fund

Nuveen Flagship Multistate Trust IV

     Nuveen Flagship Kansas Municipal Bond Fund
     Nuveen Flagship Kentucky Municipal Bond Fund
     Nuveen Flagship Kentucky Limited Term Municipal Bond Fund
     Nuveen Flagship Michigan Municipal Bond Fund
     Nuveen Flagship Missouri Municipal Bond Fund
     Nuveen Flagship Ohio Municipal Bond Fund
     Nuveen Flagship Wisconsin Municipal Bond Fund

Flagship Utility Income Fund

     Nuveen Growth and Income Stock Fund
     Nuveen Balanced Stock and Bond Fund
     Nuveen Balanced Municipal and Stock Fund
     Nuveen Rittenhouse Growth Fund

Money Market Funds

     Nuveen California Tax-Free Money Market Fund
     Nuveen Massachusetts Tax-Free Money Market Fund


                                      -4-
<PAGE>
 
     Nuveen New York Tax-Free Money Market Fund
     Nuveen Tax-Free Reserves, Inc.
     Nuveen Tax-Exempt Money Market Fund, Inc.

     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 elect 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 nominally open ("BUSINESS DAY") if
the distribution date is not a business day, automatically be received by the
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.

     The Transfer Agent of the Accumulation Fund 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 dividend distributions or as a result of reinvestment of
Accumulation Fund dividends. Any distribution of capital used to purchase shares
of an Accumulation Fund will be separately confirmed by the Transfer Agent.
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 capital only reinvestment to reinvestment of both
capital and dividends 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.

                         Information about the Sponsor

     Since our founding in 1898, Nuveen has been synonymous with investments
that withstand the test of time. Today, we offer a broad range of investments
designed for mature investors whose portfolio is the principal source of their
ongoing financial security. More than 1.3 million investors have entrusted
Nuveen to help them maintain the lifestyle they currently enjoy.

     A value investing approach--purchasing securities of strong companies and
communities that represent good long-term value--is the cornerstone of Nuveen's
investment philosophy. It is a careful, long-term strategy that offers the
potential for consistent, attractive returns with moderated risk. Successful
value investing begins with in-depth

                                      -5-
<PAGE>
 
research and a discerning eye for marketplace opportunity. Nuveen's team of
investment professionals is backed by the discipline, resources and expertise of
a century of investment experience, including one of the most recognized
research departments in the industry.

     To meet the unique circumstances and financial planning needs of mature
investors, Nuveen offers a wide array of taxable and tax-free investment
products--including equity and fixed-income mutual funds, unit trusts, exchange-
traded funds, customized asset management services and cash management products.

     The Sponsor is also principal underwriter of the registered open-end
investment companies set forth herein under "Accumulation Plan" as well as for
the Golden Rainbow A James Advised Mutual Fund, 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 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
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 Select 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 Ohio Quality Income Municipal Fund, Inc., Nuveen Texas
Quality Income Municipal Fund, Nuveen California Quality Income Municipal Fund,
Inc., Nuveen New York Quality Income Municipal Fund, Inc., Nuveen Premier
Municipal Income 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
Florida Premium Income 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 Premium Income
Municipal Fund 4, Inc., Nuveen Pennsylvania 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 Washington
Premium Income Municipal Fund, 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
California Premium Income Municipal Fund, Nuveen

                                      -6-
<PAGE>
 
Insured Premium Income Municipal Fund 2, all registered closed-end management
investment companies. These registered open-end and closed-end investment
companies currently have approximately $35 billion in securities under
management. Nuveen is a subsidiary of The John Nuveen Company which, in turn, is
approximately 78% owned by the St.Paul Companies, Inc. ("St. Paul"). St. Paul
is located in St. Paul, Minnesota and is principally engaged in providing
property-liability insurance through subsidiaries. Nuveen is a member of the
National Association of Securities Dealers, Inc. and the Securities Industry
Association and has its principal office located in Chicago (333 West Wacker
Drive). Nuveen maintains 8 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.

     The Sponsor offers a program of advertising support to registered broker-
dealer firms, banks and bank affiliates ("Firms") that sell Trust Units or
shares of Nuveen Open-End Mutual Funds (excluding money-market funds) ("Funds").
Under this program, the Sponsor will pay or reimburse the Firm for up to one
half of specified media costs incurred in the placement of advertisements which
jointly feature the Firm and the Nuveen Funds and Trusts. Reimbursements to the
Firm will be based on the number of the Firm's registered representatives who
have sold Fund Shares and/or Trust Units during the prior calendar year
according to an established schedule. Reimbursements under this program will be
made by the Sponsor and not by the Funds or Trusts.

Historical Performance of Asset Classes and Balanced Portfolios

     Nuveen has examined the historical performance of various balanced 
portfolios, combining stocks with either real estate investment trusts 
("REITs") or corporate bonds. The risk return tradeoff for various allocations 
were derived by tracking the performance of hypothetical portfolios over the 
1978-1997 period. All investment income produced by the portfolio is reinvested,
along with the proceeds from an assumed 20% annualized turnover rate. The 
allocation between the two assets were allowed to roam within a 5% band around 
its target before rebalancing. The effect of taxes was not considered. All 
portfolios were liquidated at period end. The asset class returns were 
represented by the following indices:

REITS           - National Association of Real Estate Investment Trusts Index 
                  ("NAREIT Index")
Corporate Bonds - Lehman Brothers Long Corporate Index
S&P 500 Stocks  - Ibbotson Associates Large Company Stock Index

     The average annual returns for these various balanced portfolios for the
1978-1997 period were as follows:

<TABLE>
<CAPTION>
               Equity 
              Portion         REIT       Corporate
               Mixes         Mixes         Mixes 
              <S>            <C>         <C>
               100%          16.64%        16.64%  
                80           16.64         15.70  
                60           16.48         14.43  
                40           16.38         13.23  
                20           16.26         11.98  
                 0           16.02         10.63  
</TABLE>

     A $100,000 investment in these balanced portfolios for the 1978-1997 period
would have provided the following results:

<TABLE>
<CAPTION>
               Equity 
              Portion        REIT      Corporate
               Mixes        Mixes        Mixes 
              <S>         <C>          <C>
               100%       2,173,502    2,173,502           
                80        2,174,061    1,848,804
                60        2,114,859    1,481,768
                40        2,076,863    1,200,376
                20        2,035,899      961,520
                 0        1,952,842      754,696
</TABLE>

     The risk level of these various balanced portfolios has been evaluated by
measuring the variability of the investment returns, as indicated by the
standard deviation of the investments' monthly returns over a specified
measuring period. An investment with a higher standard deviation of monthly
returns would indicate that the investment had greater prior variability, and
therefore greater risk, than an investment with lower standard deviation. The
standard deviations of the returns for these balanced portfolios for the 1978-
1997 period were as follows:

<TABLE>
<CAPTION>
               Equity 
              Portion         REIT       Corporate
               Mixes         Mixes         Mixes 
              <S>            <C>         <C>
               100%          14.68%       14.68% 
                80           13.44%       12.76% 
                60           12.55%       11.03% 
                40           12.10%        9.88% 
                20           12.15%        9.42% 
                 0           12.70%        9.92% 
</TABLE>

                                    [Graph]

               Balanced Portfolio Mixes (12/31/1977-12/31/1997)

     The graph indicates the annual returns and annualized standard deviations
of the REIT and stock balanced portfolios as they compare to corporate bond and
stock portfolios using the performance results provided above. The REIT-stock
portfolios generally had higher returns with higher standard deviations than
comparable mixes of corporate-stock portfolios.

                             [Plot Points to come]

     Over the 1978-1997 time period, balanced portfolios combining REITs and
equities provided superior returns and higher levels of risk (measured by
variability of periodic returns) than corporate blends, under the assumptions
described above. Corporate bonds are debt securities that make periodic interest
payments and have known maturity dates. However, corporate bonds may be called
prior to maturity. Corporate bonds are subject to the individual credit risk of
the issuer and the general interest rate risk of lower securities prices due to
rising interest rates. Stocks generally provide both the highest returns and the
greatest risks. Past performance is not indicative of future results.

                        Asset Class Performance Summary

     The following charts provide the performance histories of various asset
classes over several time periods and are based on the annualized returns of the
indices described above. These performance results were utilized in the
preparation of the balanced portfolio analysis provided above. Past performance
is not indicative of future results.

ASSET CLASS SUMMARY

Asset Class Performance - 1978-1997

<TABLE>
<CAPTION>
                                      S&P 500         REITs       CORPORATES 
<S>                                 <C>            <C>            <C>
Return                                  16.64%         16.02%        10.63% 
Standard Deviation                      14.68%         12.70%         9.92%
Portfolio Value                     $2,173,502     $1,952,842      $754,906  
</TABLE>


Asset Class Performance - 1978-1987
<TABLE>
<CAPTION>
                                      S&P 500         REITs       CORPORATES 
<S>                                 <C>            <C>            <C>
Return                                  15.26%         17.90%        10.22% 
Standard Deviation                      16.95%         14.01%        12.42%
Portfolio Value                       $413,709       $518,953      $264,688  
</TABLE>


Asset Class Performance - 1988-1997
<TABLE>
<CAPTION>
                                      S&P 500         REITs       CORPORATES 
<S>                                 <C>            <C>            <C>
Return                                  18.04%         14.17%        11.04% 
Standard Deviation                      12.05%         11.27%         6.57%
Portfolio Value                       $525,370       $376,304      $285,127  
</TABLE>


Asset Class Performance - 1992-1997 
<TABLE>
<CAPTION>
                                      S&P 500         REITs       CORPORATES 
<S>                                 <C>            <C>            <C>
Return                                  20.24%         18.27%         9.70% 
Standard Deviation                      10.67%         11.37%         7.24%
Portfolio Value                       $251,344       $231,429      $158,834  
</TABLE>

     The following tables reflect the degree to which the returns of the various
asset classes, as represented by the indices described above, correlate:

CORRELATIONS BETWEEN THE ASSET CLASSES

Correlations - 1978-1997
<TABLE>
<CAPTION>
                            Corporates       REITS       Stocks
<S>                         <C>              <C>         <C>
Corporates                   1.0000
REITS                        0.2684          1.0000 
Stocks                       0.3893          0.5980      1.0000
</TABLE>

Correlations - 1978-1987
<TABLE>
<CAPTION>
                            Corporates       REITS       Stocks
<S>                         <C>              <C>         <C>
Corporates                    1.000
REITS                         0.250           1.000
Stocks                        0.327           0.670       1.000
</TABLE>

Correlations - 1988-1997
<TABLE>
<CAPTION>
                            Corporates       REITS       Stocks
<S>                         <C>              <C>         <C>
Corporates                    1.000
REITS                         0.341           1.000
Stocks                        0.579           0.478       1.000
</TABLE>

                                     -7-
<PAGE>

STATEMENT OF DIFFERENCES BETWEEN ELECTRONIC FILING AND PRINTED DOCUMENT.

     Pursuant to Rule 499(c) (7) under the Securities Act of 1933, 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)  In the printed document, footnote symbols may include a "dagger" or
multiple "dagger". The "dagger" symbol is represented as # in the electronic
document.

     (3)  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:

<TABLE>
<CAPTION>
          Insurer/Policy No.                              Amount
<S>                                                    <C>
          Reliance Insurance Company
          B 262 6895                                   $26,000,000
</TABLE>

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

                               The facing sheet

                                The Prospectus

                                The signatures

                              Consents of Counsel

                            The following exhibits:

1.1(a)  Copy of Standard Terms and Conditions of Trust for Nuveen Unit Trusts,
        Series 4 and certain subsequent series, effective May 29, 1997 between
        John Nuveen & Co. Incorporated, Depositor and The Chase Manhattan Bank,
        Trustee and Evaluator (incorporated by reference to Amendment No. 1 to
        Form S-6 [File No. 333-25225] filed on behalf of Nuveen Unit Trusts,
        Series 4).

1.1(b)  Trust Indenture and Agreement (to be supplied by amendment).

1.2/*/  Copy of Certificate of Incorporation, as amended, of John Nuveen & Co.
        Incorporated, Depositor.

1.3/**/ Copy of amendment of Certificate of Incorporation changing name of
        Depositor to John Nuveen & Co. Incorporated.

2.1     Copy of Certificate of Ownership (Included in Exhibit 1.1(a), and
        incorporated herein by reference).

- --------------------
/*/  Incorporated by reference to Form N-8B-2 (File No. 811-1547) filed on
     behalf of Nuveen Tax-Free Unit Trust, Series 16.

/**/ Incorporated by reference to Form N-8B-2 (File No. 811-2198) filed on
     behalf of Nuveen Tax-Free Unit Trust, Series 37.

                                      S-1
<PAGE>
 
3.1    Opinion of counsel as to legality of securities being registered (to be
       supplied by amendment).

3.2    Opinion of counsel as to Federal income tax status of securities being
       registered (to be supplied by amendment).

3.3    Opinion of counsel as to New York income tax status of securities being
       registered (to be supplied by amendment).

3.4    Opinion of counsel as to advancement of funds by Trustee (to be supplied
       by amendment).

4.2    Consent of The Chase Manhattan Bank (to be supplied by amendment).

4.4    Consent of Arthur Andersen LLP (to be supplied by amendment).

6.1    List of Directors and Officers of Depositor and other related information
       (incorporated by reference to Exhibit E to Form N-8B-2 [File No. 811-
       08103] filed on March 20, 1997 on behalf of Nuveen Unit Trusts, Series 1
       and subsequent Series).

C.   Explanatory Note

     This Registration Statement may contain 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 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.

                                      S-2
<PAGE>
 
                                  Signatures
                                  ----------

     Pursuant to the requirements of the Securities Act of 1933, the Registrant,
Nuvee Unit Trusts, Series 13 has duly caused this Registration Statement to be
signed on its behalf by the undersigned thereunto duly authorized in the City of
Chicago and State of Illinois on the 5th day of May, 1998.


                                       NUVEEN UNIT TRUSTS, SERIES 13
                                               (Registrant)

                                       By JOHN NUVEEN & CO. INCORPORATED
                                                   (Depositor)



                                       By /s/        H. William Stabenow
                                         --------------------------------------
                                                     Vice President



                                       Attest /s/        Karen L. Healy
                                             ----------------------------------
                                                    Assistant Secretary

                                      S-3

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

<TABLE>
<CAPTION>
   Signature                      Title*                            Date
   ---------                      ------                            ----
<S>                        <C>                               <C>

Timothy R. Schwertfeger    Chairman, Board of Directors )
                           Chief Executive Officer      )
                           and Director                 )
                                                        )
                                                        )
Anthony T. Dean            President, Chief Operating   )
                           Officer and Director         )
                                                        )
                                                        )
John P. Amboian            Chief Financial Officer and  )    /s/Larry W. Martin
                           Executive Vice President     )      Larry W. Martin
                                                        )    Attorney-in-Fact**
                                                        )
O. Walter Renfftlen        Vice President and           )       May 5, 1998
                           Controller (Principal        )
                           Accounting Officer)          )
                                                        )
                                                        )
</TABLE>
     
- -----

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

**The powers of attorney for Messrs. Amboian, Renfftlen, Dean and Schwertfeger
were filed as Exhibit 6 to Form N-8B-2 (File No.E811-08103).

<PAGE>
 
                   Consent of Independent Public Accountants

The consent of Arthur Andersen LLP to the use of its report and to the reference
to such firm in the Prospectus included in this Registration Statement will be
filed as Exhibit 4.4 to the Registration 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 will be contained in its opinions to be
filed as Exhibits 3.1 and 3.2 to the Registration Statement.

                      Consent of The Chase Manhattan Bank

The consent of The Chase Manhattan Bank to the use of its name in the Prospectus
included in this Registration Statement will be filed 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 this Registration Statement will be filed as Exhibit 3.3
to the Registration Statement.


                                      S-5


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