KEMPER DEFINED FUNDS SERIES 13
S-6EL24, 1994-02-04
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<PAGE>

   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 4, 1994

                                                       REGISTRATION NO. 33-
                                                       CIK #910703

                      SECURITIES AND EXCHANGE COMMISSION
                          WASHINGTON, D.C. 20549-1004

                               -----------------

                            REGISTRATION STATEMENT
                                      ON
                                   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:
                        KEMPER DEFINED FUNDS SERIES 13

B.  NAME OF DEPOSITOR:
                            KEMPER SECURITIES, INC.

C.  COMPLETE ADDRESS OF DEPOSITOR'S PRINCIPAL EXECUTIVE OFFICES:

                         KEMPER UNIT INVESTMENT TRUSTS
                             77 West Wacker Drive
                           Chicago, Illinois  60601

D.  NAME AND COMPLETE ADDRESS OF AGENT FOR SERVICE:

                                   Copy to:

         C. PERRY MOORE                                    MARK J. KNEEDY
  Kemper Unit Investment Trusts                        c/o Chapman and Cutler
       77 West Wacker Drive                            111 West Monroe Street
    Chicago, Illinois  60601                          Chicago, Illinois  60603

                        CALCULATION OF REGISTRATION FEE
<TABLE> 
<CAPTION> 
- --------------------------------------------------------------------------------
    Title and amount of                     Proposed maximum      Amount of
securities being registered                aggregate offering  registration fee
                                                  price
- --------------------------------------------------------------------------------
<S>                                        <C>                 <C>  
Series 13   An indefinite number of Units      Indefinite          $500
            of Beneficial Interest 
            pursuant to Rule 24f-2 under 
            the Investment Company Act of 
            1940
- --------------------------------------------------------------------------------
</TABLE> 

E.  APPROXIMATE DATE OF PROPOSED SALE TO PUBLIC:

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

  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>
 
                        KEMPER DEFINED FUNDS SERIES 13


                               -----------------

                             CROSS-REFERENCE SHEET

                 (FORM N-8B-2 ITEMS REQUIRED BY INSTRUCTIONS AS
                         TO THE PROSPECTUS IN FORM S-6)

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

                    I.  ORGANIZATION AND GENERAL INFORMATION

1.  (a)  Name of trust........................... }Prospectus front cover
    (b)  Title of securities issued.............. }Essential Information
2.  Name and address of each depositor........... }Administration of the Trusts
3.  Name and address of trustee.................. }
4.  Name and address of principal underwriters... }Underwriting
5.  State of organization of trust............... }The Trust Funds
6.  Execution and termination of trust
      agreement.................................. }The Trust Funds;
                                                  }Administration of the Trusts
7.  Changes of name.............................. }The Trust Funds
8.  Fiscal year.................................. }   */1/
 
9.  Litigation................................... }   *

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

10. (a)  Registered or bearer securities......... }Unitholders
    (b)  Cumulative or distributive securities... }The Trust Funds
    (c)  Redemption.............................. }Redemption
    (d)  Conversion, transfer, etc. ............. }Unitholder; Market for
                                                  }Units
    (e)  Periodic payment plan................... }   *
    (f)  Voting rights........................... }Unitholders
                                                  }Investment Supervision;
    (g)  Notice of certificateholders............ }Administration of the
                                                  }Trusts; Unitholders
    (h)  Consents required....................... }Unitholders; Administration
                                                  }of the Trusts
- -------------------
/1/*Inapplicable, answer negative or not required.

<PAGE>
 
    (i)  Other provisions........................ }Federal Tax Status;
                                                  }Insurance on the Portfolios
11. Type of securities comprising units.......... }The Trust Funds; Portfolios
12. Certain information regarding periodic
      payment certificates....................... }   *
13. (a)  Load, fees, expenses, etc. ............. }Offering of Units; Interest,
                                                  }Estimated Long-Term
                                                  }Return and Estimated
                                                  }Current Return; Expenses
                                                  }of the Trust
    (b)  Certain information regarding periodic
           payment certificates.................. }  *
    (c)  Certain percentages..................... }Essential Information; Public
                                                  }Offering of Units; Insurance
                                                  }on the Portfolios
    (d)  Certain other fees, etc. payable
           by holders............................ }Unitholders
    (e)  Certain profits receivable by depositor, }  *
           principal, underwriters, writers,      }Expenses of the Trust;
           trustee or affiliated persons......... }Public Offering of Units
    (f)  Ratio of annual charges to income....... }  *
                                                  }The Trust Funds;
14. Issuance of trust's securities............... }Unitholders
15. Receipt and handling of payments
     from purchasers............................. }  *
16. Acquisition and disposition of underlying
     securities.................................. }The Trust Funds; Portfolios;
                                                  }Investment Supervision
                                                  }Market for Units;
17. Withdrawal or redemption..................... }Redemption; Public Offering
                                                  }of Units
18. (a)  Receipt, custody and disposition
           of income............................. }Unitholders
    (b)  Reinvestment of distributions........... }Distribution Reinvestment
    (c)  Reserves or special funds............... }Expenses of the Trust
    (d)  Schedule of distributions............... }  */2/
 
                                                  }Unitholders;
19. Records, accounts and reports................ }Redemption; Administration
                                                  }of the Trusts
20. Certain miscellaneous provisions of trust 
      agreement
    (a)  Amendment............................... }Administration of the Trusts
- -------------------
/2/*Inapplicble, answer negative or not required.

                                      -ii-
<PAGE>
 
    (b)  Termination............................. }  *
    (c)  and (d) Trustee, removal and successor.. }Administration of the Trusts
    (e)  and (f) Depositor, removal and
           successor............................. }Administration of the Trusts
21. Loans to security holders.................... }  *
22. Limitations on liability..................... }Administration of the Trusts
23. Bonding arrangements......................... }  *
24. Other material provisions of trust
      agreement.................................. }  *

                       III.  ORGANIZATION, PERSONNEL AND
                        AFFILIATED PERSONS OF DEPOSITOR
 
25. Organization of depositor.................... }Administration of the Trusts
26. Fees received by depositor................... }See Items 13(a) and 13(e)
27. Business of depositor........................ }Administration of the Trusts
28. Certain information as to officials and
      affiliated persons of depositor............ }Administration of the Trusts
29. Voting securities of depositor............... }  *
                                                  }Administration of the Trusts
30. Persons controlling depositor................ }  *
31. Payment by depositor for certain services
      rendered to trust.......................... }  *
32. Payment by depositor for certain other
      services rendered to trust................. }  */3/
 
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

35. Distribution of Trust's securities
      by states.................................. }Public Offering of Units
36. Suspension of sales of trust's securities.... }  *
37. Revocation of authority to distribute........ }  *
38. (a)  Method of Distribution.................. }Public Offering of Units;
    (b)  Underwriting Agreements................. }Market for Units;
    (c)  Selling Agreements...................... }Public Offering of Units
39. (a)  Organization of principal underwriters.. }Administration of the Trusts
    (b)  N.A.S.D. membership of principal
           underwriters.......................... }*
40. Certain fees received by principal
- -------------------
/3/*Inapplicable, answer negative or not required.

                                     -iii-
<PAGE>
 
      underwriters............................... }See Items 13(a) and 13(e)
41. (a)  Business of principal underwriters...... }Administration of the Trusts
    (b)  Branch offices of principal
           underwriters.......................... }*
    (c)  Salesmen of principal underwriters...... }*
42. Ownership of trust's securities by
      certain persons............................ }*
43. Certain brokerage commissions received by
      principal underwriters..................... }Public Offering of Units
44. (a)  Method of valuation..................... }Public Offering of Units
    (b)  Schedule as to offering price........... }  *
    (c)  Variation in offering price to
           certain persons....................... }Public Offering of Units
45. Suspension of redemption rights.............. }Redemption
                                                  }Redemption; Market for
46. (a)  Redemption valuation.................... }Units; Public Offering of
                                                  }Units
    (b)  Schedule as to redemption price......... }  */4/
 
                                                  }Market for Units;
47. Maintenance of position in underlying........ }Public Offering of Units;
                                                  }Redemption

                     V.  INFORMATION CONCERNING THE TRUSTEE
                                  OR CUSTODIAN

48. Organization and regulation of trustee....... }Administration of the Trusts
49. Fees and expenses of trustee................. }Expenses of the Trust
50. Trustee's lien............................... }  *

                    VI.  INFORMATION CONCERNING INSURANCE OF
                             HOLDERS OF SECURITIES

51. Insurance of holders of trust's
      securities................................. }Cover Page; Expenses of
                                                  }the Trust; Insurance on
                                                  }the Portfolios

                           VII.  POLICY OF REGISTRANT

52. (a)  Provisions of trust agreement with
           respect to selection or elimination    }The Trust Funds; Portfolios;
           of underlying securities.............. }Investment Supervision
    (b)  Transactions involving elimination of
- -------------------
/4/*Inapplicable, answer negative or not required.

                                      -iv-
<PAGE>
 
           underlying securities................. }  *
    (c)  Policy regarding substitution or 
           elimination of underlying securities.. }Investment Supervision
    (d)  Fundamental policy not otherwise
           covered............................... }  *
                                                  }Essential Information;
53. Tax status of Trust.......................... }Portfolios
                                                  }Federal Tax Status

                  VIII.  FINANCIAL AND STATISTICAL INFORMATION

54. Trust's securities during last ten years..... }  *
55.                                               }  *
56. Certain information regarding periodic....... }  *
57.   payment certificates....................... }  */5/
 
58.
59. Financial statements (Instruction 1(c)
      to Form S-6)............................... }   *
- -------------------
/5/*Inapplicable, answer negative or not required.

                                      -v-
<PAGE>
 
   
Information contained herein is subject to completion or
amendment. A registration statement relating to these securities has
been filed with the Securities and Exchange Commission. These
securities[el]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 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
State.
    

Preliminary Prospectus Dated February 4, 1994
Subject to completion
KEMPER DEFINED FUNDS SERIES 13
(TAX-EXEMPT PORTFOLIO)
 
   
Insured National Series 8 (the "Insured National Series") was formed for the
purpose of gaining interest income exempt from Federal income taxes while
conserving capital and diversifying risks by investing in an insured, fixed
portfolio consisting of obligations issued by or on behalf of states of the
United States or counties, municipalities, authorities or political
subdivisions thereof.
    
 
   
Insured New York Series 4 was formed for the purpose of gaining interest
income free from Federal and State income taxes and, where applicable, local
income taxes and/or property taxes while conserving capital and diversifying
risks by investing in an insured, fixed portfolio consisting of obligations
issued by or on behalf of the State for which such Trust Fund is named or
counties, municipalities, authorities or political subdivisions thereof.
    
 
   
Virginia Series 1 was formed for the purpose of gaining interest income free
from Federal and State income taxes and, where applicable, local income taxes
and/or property taxes while conserving capital and diversifying risks by
investing in a fixed portfolio consisting of obligations issued by or on
behalf of the State for which such Trust Fund is named or counties,
municipalities, authorities or political subdivisions thereof.
    
 
   
Insurance guaranteeing the scheduled payment of principal and interest on all
of the Municipal Bonds in the portfolio of each Insured Trust has been
obtained directly by the issuer or the Sponsor from Municipal Bond Investors
Assurance Corporation or other insurers. See "Insurance on the Portfolios of
the Insured Trust Funds" on page A-9 and "Portfolios." Insurance obtained by a
Municipal Bond issuer is effective so long as such Bonds are outstanding. THE
INSURANCE DOES NOT RELATE TO THE UNITS OF THE INSURED TRUSTS OFFERED HEREBY OR
TO THEIR MARKET VALUE. As a result of such insurance, the Units of the Insured
Trusts have received a rating of "Aaa" by Moody's Investors Service, Inc. See
"Insurance on the Portfolios of the Insured Trust Funds." No representation is
made as to any insurer's ability to meet its commitments.
    
 
- ------------------------------------------------------------------------------
 
                    SPONSOR: KEMPER UNIT INVESTMENT TRUSTS
 
                     a service of Kemper Securities, Inc.
 
- ------------------------------------------------------------------------------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.
 
    The investor is advised to read and retain this Prospectus for future
                                  reference.
 
   
               THE DATE OF THIS PROSPECTUS IS FEBRUARY  , 1994.
    
 
<PAGE>
SUMMARY
 
   
PUBLIC OFFERING PRICE. The Public Offering Price per Unit of a Trust Fund
during the initial offering period is equal to a pro rata share of the
offering prices of the Municipal Bonds in such Trust Fund plus or minus a pro
rata share of (a) cash, if any, in the Principal Account held or owed by such
Trust Fund, (b) Purchased Interest and (c) Daily Accrued Interest plus that
sales charge indicated under "Essential Information." The secondary market
Public Offering Price per Unit will be based upon a pro rata share of the bid
prices of the Municipal Bonds in each Trust Fund plus or minus a pro rata
share of (a) cash, if any, in the Principal Account held or owned by such
Trust Fund, (b) Purchased Interest and (c) Daily Accrued Interest plus the
applicable sales charge. For sales charges in the secondary market, see
"Public Offering of Units--Public Offering Price." The sales charge is reduced
on a graduated scale for sales involving at least $100,000 or 10,000 Units and
will be applied on whichever basis is more favorable to the investor. The
minimum purchase for each Trust is $1,000.
    
 
INTEREST AND PRINCIPAL DISTRIBUTIONS. Distributions of the estimated annual
interest income to be received by each Trust Fund, after deduction of
estimated expenses, will be made monthly. See "Essential Information."
Distributions of funds, if any, in the Principal Account will be made as
provided in "Unitholders--Distributions to Unitholders."
 
REINVESTMENT. Each Unitholder of a Trust Fund offered herein may elect to have
distributions of principal or interest or both automatically invested without
charge in shares of certain mutual funds sponsored by Kemper Financial
Services, Inc. See "Distribution Reinvestment."
 
ESTIMATED LONG-TERM RETURN AND ESTIMATED CURRENT RETURN. As of the opening of
business on the Date of Deposit, the Estimated Long-Term Return and the
Estimated Current Return, if applicable, for each Trust were as set forth in
"Essential Information." The Estimated Current Return is calculated by
dividing the estimated net annual interest income per Unit by the Public
Offering Price. The estimated net annual interest income per Unit will vary
with changes in fees and expenses of the Trustee, the Sponsor and Evaluator
and with the principal prepayment, redemption, maturity, exchange or sale of
Bonds while the Public Offering Price will vary with changes in the offering
price of the underlying Bonds and with changes in the Purchased Interest and
Daily Accrued Interest; therefore, there is no assurance that the present
Estimated Current Return will be realized in the future. Estimated Long-Term
Return is calculated using a formula which (1) takes into consideration, and
determines and factors in the relative weightings of, the market values,
yields (which takes into account the amortization of premiums and the
accretion of discounts) and estimated retirement dates of all of the Bonds in
the applicable Trust and (2) takes into account the expenses and sales charge
associated with each Trust Unit. Since the market values and estimated
retirement dates of the Bonds and the expenses of a Trust will change, there
is no assurance that the present Estimated Long-Term Return will be realized
in the future. Estimated Current Return and Estimated Long-Term Return are
expected to differ because the calculation of Estimated Long-Term Return
reflects the estimated date and amount of principal returned while Estimated
Current Return calculations include only net annual interest income and Public
Offering Price.
 
MARKET FOR UNITS. After the initial offering period, while under no obligation
to do so, the Sponsor intends to, and certain of the other Underwriters may,
maintain a market for the Units and to offer to repurchase such Units at
prices subject to change at any time which are based on the aggregate bid side
evaluation of the Municipal Bonds in the Trust Fund plus Purchased Interest
and Daily Accrued Interest.
 
2
 
<PAGE>
KEMPER DEFINED FUNDS SERIES 13
 
ESSENTIAL INFORMATION
AS OF THE OPENING OF BUSINESS ON THE DATE OF DEPOSIT
 
<TABLE>
<C>                       <S>
  SPONSOR AND EVALUATOR:  KEMPER UNIT INVESTMENT TRUSTS, A SERVICE OF
                          KEMPER SECURITIES, INC.
                TRUSTEE:  INVESTORS FIDUCIARY TRUST COMPANY
</TABLE>
 
The income, expense and distribution data set forth below has been calculated
for Unitholders purchasing less than 10,000 Units. Unitholders purchasing more
than 10,000 Units will receive a slightly higher return because of the reduced
sales charge for larger purchases.
 
<TABLE>
<CAPTION>
                                                                           INSURED        INSURED
                                                                          NATIONAL        NEW YORK        VIRGINIA
                                                                          SERIES 8        SERIES 4        SERIES 1
                                                                           -------        -------         -------
<S>                                                                     <C>            <C>             <C>
Public Offering Price per Unit (1)(2).................................
Principal Amount of Municipal Bonds per Unit..........................
Estimated Current Return based on Public Offering Price
  (3)(4)(5)(7)........................................................
Estimated Long-Term Return (3)(4)(5)(7)...............................
Estimated Normal Annual Distribution per Unit (7).....................
Principal Amount of Municipal Bonds...................................
Number of Units.......................................................
Fractional Undivided Interest per Unit................................
Calculation of Public Offering Price--Less than 10,000 Units:
    Aggregate Offering Price of Bonds.................................
    Aggregate Offering Price of Bonds per Unit........................
    Purchased Interest (1)............................................
    Purchased Interest per Unit.......................................
      Total Offering Price and Purchased Interest Per Unit (1)........
    Plus Sales Charge per Unit (9)....................................
  Public Offering Price per Unit (1)(2)...............................
Redemption Price per Unit.............................................
Sponsor's Initial Repurchase Price per Unit...........................
Excess of Public Offering Price per Unit over Redemption Price per
  Unit................................................................
Excess of Public Offering Price per Unit over Sponsor's Initial
  Repurchase Price per Unit...........................................
Calculation of Estimated Net Annual Interest Income per Unit (7):
    Estimated Annual Interest Income..................................
    Less: Estimated Annual Expense....................................
                                                                           ----------     ----------      ----------
    Estimated Net Annual Interest Income..............................
Estimated Daily Rate of Net Interest Accrual per Unit.................
Minimum Principal Value of the Trust under which Trust Agreement may
  be terminated.......................................................
</TABLE>
 
Evaluations for purposes of sale, purchase or redemption of Units are made as
of the close of business of the Sponsor (3:15 p.m. Central Time) next
following receipt of an order for a sale or purchase of Units or receipt by
Investors Fiduciary Trust Company of Units tendered for redemption.
information.
 
                                                                             3
 
<PAGE>
ESSENTIAL INFORMATION--(CONTINUED)
 
<TABLE>
<CAPTION>
                                                                              INSURED         INSURED
                                                                              NATIONAL        NEW YORK        VIRGINIA
                                                                              SERIES 8        SERIES 4        SERIES 1
<S>                                                                        <C>             <C>             <C>
                                                                           --------------  --------------  --------------
Trustee's Annual Fee per $1,000 principal amount of Municipal Bonds
     (6).................................................................
Reduction of Trustee's fee per Unit during the first year (7)............
Estimated annual interest income per Unit during the first year (7)......
Interest Payments (8):
First Payment per Unit, representing days................................
Estimated Normal Monthly Distribution per Unit...........................
Estimated Normal Annual Distribution per Unit............................
Sales Charge (9):
As a percentage of Public Offering Price per Unit........................
As a percentage of net amount invested...................................
As a percentage of net amount invested in earning assets.................
Date of Trust Agreements...............................................  February  , 1994
First Settlement Date..................................................
Mandatory Termination Date.............................................  December 31, 2009
Evaluator's Annual Evaluation Fee......................................  Maximum of $0.30 per $1,000 Principal
                                                                         Amount of Municipal Bonds
Sponsor's Annual Surveillance Fee......................................  Maximum of $0.002 per Unit
</TABLE>
 
- ------------------------------
(1)  Purchased Interest is a portion of the unpaid interest that has
     accumulated on the Bonds in a Trust from the later of the last payment
     date on the Bonds or the date of issuance thereof through the First
     Settlement Date of such Trust. In addition, anyone ordering Units after
     the Date of Deposit will pay Daily Accrued Interest from the later of the
     First Settlement Date or the last Record Date for such Trust to the date
     of settlement (five business days after order). Daily Accrued Interest is
     the estimated daily rate of net interest accrued on the Bonds in a Trust.
(2)  Many unit investment trusts comprised of municipal securities issue a
     number of units such that each unit represents approximately $1,000
     principal amount of underlying securities. The Sponsor, on the other
     hand, in determining the number of Units for each Trust has elected not
     to follow this format but rather to provide that number of Units which
     will establish as close as possible as of the Date of Deposit a Public
     Offering Price per Unit of $10.
(3)  The Estimated Current Return and Estimated Long-Term Return are increased
     for transactions entitled to a reduced sales charge. See "Public Offering
     of Units--Public Offering Price."
(4)  The Estimated Current Returns are calculated by dividing the estimated
     net annual interest income per Unit by the Public Offering Price. The
     estimated net annual interest income per Unit will vary with changes in
     fees and expenses of the Trustee, the Sponsor and the Evaluator and with
     the principal prepayment, redemption, maturity, exchange or sale of Bonds
     while the Public Offering Price will vary with changes in the offering
     price of the underlying Bonds and with changes in the Purchased Interest
     and Daily Accrued Interest; therefore, there is no assurance that the
     present Estimated Current Returns indicated above will be realized in the
     future. The Estimated Long-Term Returns are calculated using a formula
     which (1) takes into consideration, and determines and factors in the
     relative weightings of, the market values, yields (which takes into
     account the amortization of premiums and the accretion of discounts) and
     estimated retirement dates of all of the Bonds in the applicable Trust
     and (2) takes into account the expenses and sales charge associated with
     each Trust Unit. Since the market values and estimated retirement dates
     of the Bonds and expenses of each Trust will change, there is no
     assurance that the present Estimated Long-Term Returns as indicated above
     will be realized in the future. The Estimated Current Returns and
     Estimated Long-Term Returns are expected to differ because the
     calculation of the Estimated Long-Term Returns reflects the estimated
     date and amount of principal returned while the Estimated Current Return
     calculations include only net annual interest income and Public Offering
     Price.
(5)  This figure is based on estimated per Unit cash flows. Estimated cash
     flows will vary with changes in fees and expenses, with changes in
     current interest rates and with the principal prepayment, redemption,
     maturity, call, exchange or sale of the underlying Bonds. The estimated
     cash flows to Unitholders for the Trusts are either set forth under
     "Estimated Cash Flows to Unitholders" or are available upon request at no
     charge from the Sponsor.
(6)  See "Expenses of the Trusts."
(7)  During the first year, the Trustee has agreed to reduce its fee (and to
     the extent necessary pay expenses of the Trust Funds) in the amounts
     stated above. The Trustee has agreed to the foregoing to cover all or a
     portion of the interest on any Municipal Bonds accruing prior to their
     expected dates of delivery, since interest will not accrue to the benefit
     of Unitholders of a Trust Fund until such Bonds are actually delivered to
     the Trust Fund. The estimated net annual interest income per Unit will
     remain as indicated. See "The Trust Funds" and "Interest, Estimated
     Long-Term Return and Estimated Current Return."
(8)  Unitholders will receive interest distributions monthly. The Record Date
     is the first day of the month, commencing         , and the distribution
     date is the fifteenth day of the month, commencing         .
(9)  The sales charge as a percentage of the net amount invested in earning
     assets will increase as Daily Accrued Interest increases. Transactions
     subject to quantity discounts (see "Public Offering of Units-Public
     Offering Price") will have reduced sales charges, thereby reducing all
     percentages in the table.
 
4
 
<PAGE>
THE TRUST FUNDS
 
GENERAL
 
   
Kemper Defined Funds Series 13 includes the following separate unit investment
trusts created by the Sponsor under the name Kemper Defined Funds: "Insured
National Series 8" (the "Insured National Trust"), "Insured New York Series 4"
(the "Insured State Trust") and "Virginia Series 1" (the "Virginia Trust" or 
the "State Trust") (hereinafter collectively called the "Trusts" or "Trust
Funds"). Each of the Trust Funds is generally similar but each is separate and
is designated by a different series number. Each of the Trust Funds was created
under the laws of the State of Missouri pursuant to a trust indenture dated the
Date of Deposit (the "Trust Agreements") between Kemper Unit Investment Trusts,
a service of Kemper Securities, Inc. (the "Sponsor") and Investors Fiduciary
Trust Company (the "Trustee").*
    
 
   
The Insured National Trust was formed for the purpose of gaining interest
income free from Federal income taxes while conserving capital and
diversifying risks by investing in an insured, fixed portfolio consisting of
obligations issued by or on behalf of states of the United States or counties,
municipalities, authorities or political subdivisions thereof.
    
 
   
The Insured State Trust was formed for the purpose of gaining interest income
free from Federal and State income taxes and, where applicable, local income
and/or property taxes while conserving capital and diversifying risks by
investing in an insured, fixed portfolio consisting of obligations issued by or
on behalf of the State for which such Trust Fund is named or counties,
municipalities, authorities or political subdivisions thereof.
    
 
   
The State Trust was formed for the purpose of gaining interest income free
from Federal and State income taxes and, where applicable, local income and/or
property taxes while conserving capital and diversifying risks by investing in
a fixed portfolio consisting of obligations issued by or on behalf of the
State for which such Trust Fund is named or counties, municipalities,
authorities or political subdivisions thereof.
    
 
There is, of course, no guarantee that the Trust Funds' objectives will be
achieved.
 
On the Date of Deposit, the Sponsor delivered to the Trustee that aggregate
principal amount of Municipal Bonds or contracts for the purchase thereof for
deposit in the Trust Funds as set forth under "Essential Information." Of such
principal amount, the amount specified in "Essential Information" was
deposited in each Trust. In exchange for the Municipal Bonds so deposited, the
Trustee delivered to the Sponsor documentation evidencing the ownership of
that number of Units for each Trust Fund as indicated under "Essential
Information." Offerees in the States of Indiana and Washington may
only purchase units of the Insured National Trust. Offerees in the State of 
Virginia may only purchase units of the Insured National Trust and the Virginia 
Trust.
 
Each Trust Fund initially consists of delivery statements (i.e., contracts) to
purchase obligations (the "Municipal Bonds" or the "Bonds"). The Sponsor has a
limited right of substitution for such Bonds in the event of a failed
contract. See "Portfolios."
 
Certain of the Bonds in certain of the Trust Funds may have been purchased on
a "when, as and if issued" or "delayed delivery" basis with delivery expected
to take place after the First Settlement Date. See "The Trust Fund--Series
Information" and "Notes to Portfolios." Accordingly, the delivery of such
Bonds may be delayed or may not occur. Interest on these Municipal Bonds
begins accruing to the benefit of Unitholders on their respective dates of
delivery. To the extent any Municipal Bonds are actually delivered to a Trust
Fund after their respective expected dates of delivery, Unitholders who
purchase Units in such Trust Fund prior to the date such "when, as and if
issued" or "delayed delivery" Municipal Bonds are actually delivered to the
Trustee would, to the extent such income is not offset by a reduction in the
Trustee's fee (or, to the extent necessary, other expenses), be required to
reduce their tax basis in their Units of such Trust Fund since 
- ---------------------------
 * Reference is made to the Trust Agreements, and any statements contained
   herein are qualified in their entirety by the provisions of the Trust
   Agreements.
 
                                                                             5
 
<PAGE>
the interest accruing on such Bonds during the interval between their purchase
of Units and the actual delivery of such Bonds would, for tax purposes, be
considered a non-taxable return of principal rather than as tax-exempt interest.
The result of such adjustment, if necessary, would be, during the first year
only, that the Estimated Long-Term Returns may be, and the Estimated Current
Returns would be, slightly lower than those shown herein, assuming the Trust
Fund portfolios and estimated annual expenses do not vary. Holders of Units will
be "at risk" with respect to these Bonds (i.e., may derive either gain or loss
from fluctuations in the evaluation of such Bonds) from the date they commit for
Units.
 
All of the Municipal Bonds in each Trust Fund are rated in the category "BBB"
or better by Standard & Poor's or "Baa" or better by Moody's. See "Description
of Municipal Bond Ratings" and "The Trust Fund-- Portfolios."
 
Each Unit represents an undivided fractional interest in the Municipal Bonds
deposited in the appropriate Trust Fund, as shown under "Essential
Information." All Municipal Bonds deposited were accompanied by copies of
opinions of bond counsel given at the time of original delivery of such
obligations to the effect that interest thereon is exempt from all Federal
income taxes, except in certain instances depending on the holder, and from
State income taxes and, where applicable, local income and/or property taxes
for residents of the State for which such Trust Fund is named. Capital gains,
if any, are subject to Federal income taxation, payable by Unitholders. See
"Federal Tax Status."
 
An investment in Units of a Trust Fund should be made with an understanding of
the risks which an investment in fixed rate debt obligations may entail,
including the risk that the value of the portfolio and hence of the Units will
decline with increases in interest rates. The value of the underlying
Municipal Bonds will fluctuate inversely with changes in interest rates. The
uncertain economic conditions of recent years, together with the fiscal
measures adopted to attempt to deal with them, have resulted in wide
fluctuations in interest rates and, thus, in the value of fixed rate debt
obligations generally and long-term obligations in particular. The Sponsor
cannot predict the degree to which such fluctuations will continue in the
future.
 
SERIES INFORMATION
 
<TABLE>
<CAPTION>
                                                                                 INSURED       INSURED
                                                                                 NATIONAL      NEW YORK      VIRGINIA
                                                                                 SERIES 8      SERIES 4      SERIES 1
<S>                                                                            <C>           <C>           <C>
                                                                               ------------  ------------  ------------
Number of Obligations........................................................
Territorial Obligations (1)..................................................
General Obligation Bonds (2)(4)..............................................
Revenue Bonds (3)(4).........................................................
Revenue Bond Concentrations (4):
Airport......................................................................
Correctional Facilities......................................................
Education....................................................................
Electric Systems.............................................................
Excise Tax Revenue...........................................................
Hospital.....................................................................
Housing......................................................................
Lease Revenue................................................................
Port Authority...............................................................
Wastewater...................................................................
Tax Allocation...............................................................
Transportation...............................................................
Tollroad.....................................................................
Utilities....................................................................
Water and Sewer..............................................................
Miscellaneous................................................................
Average life of the Municipal Bonds in the
  Trust (5)..................................................................
Percentage of "when, as and if issued " or "delayed delivery" Bonds purchased
  by the Trust...............................................................
Syndication (6)..............................................................
</TABLE>
 
- ------------------------------
(1)  Municipal Bonds issued by Territories of the United States (which term
     includes the Commonwealth of Puerto Rico and the District of Columbia)
     generally receive the same tax exempt treatment for both state and
     Federal tax purposes as Municipal Bonds issued by political entities in
     the named State Trust. See "Special Considerations and State Tax Status"
     for each Trust.
(2)  General obligation bonds are general obligations of governmental entities
     and are backed by the taxing powers of such entities.
(3)  Revenue bonds are payable from the income of a specific project or
     authority and are not supported by an issuer's power to levy taxes.
 
6
 
<PAGE>
(4)  The portfolio percentage in parenthesis represents the principal amount
     of such Bonds to the total principal amount of Bonds in the Trust. For a
     discussion of the risks associated with investments in the bonds of such
     issuers, see "Portfolios--General Trust Information."
(5)  The average life of the Bonds in a Trust is calculated based upon the
     stated maturities of the Bonds in such Trust (or, with respect to Bonds
     for which funds or securities have been placed in escrow to redeem such
     Bonds on a stated call date, based upon such call date). The average life
     of the Bonds in a Trust may increase or decrease from time to time as
     Bonds mature or are called or sold.
(6)  The Sponsor and/or affiliated Underwriters have participated as either
     the sole underwriter or manager or a member of underwriting syndicates
     from which approximately that percentage listed above of the aggregate
     principal amount of the Bonds in such Trust were acquired.
 
TAXABLE EQUIVALENT ESTIMATED CURRENT RETURN TABLES
 
As of the date of this Prospectus, the following tables show the approximate
taxable estimated current returns for individuals that are equivalent to
tax-exempt estimated current returns under combined Federal and State taxes
(where applicable) using the published Federal and State tax rates (where
applicable) scheduled to be in effect in 1993. They incorporate increased tax
rates for higher income taxpayers that were included in the  Revenue
Reconciliation Act of 1993. These tables illustrate approximately what you would
have to earn on taxable investments to equal the tax-exempt estimated current
return in your income tax bracket. For cases in which more than one State
bracket falls within a Federal bracket the highest State bracket is combined
with the Federal bracket. The combined State and Federal tax rates shown reflect
the fact that State tax payments are currently deductible for Federal tax
purposes, and have been rounded to the nearest 1/2 of 1%. The tables do not show
the approximate taxable estimated current returns for individuals that are
subject to the alternative minimum tax. The taxable equivalent estimated current
returns may be somewhat higher than the equivalent returns indicated in the
following tables for those individuals who have adjusted gross incomes in excess
of $108,450. The tables do not reflect the effect of limitations on itemized
deductions and the deduction for personal exemptions. They were designed to
phase out certain benefits of these deductions for higher income taxpayers.
These limitations, in effect, raise the marginal Federal tax rate to
approximately 44 percent for taxpayers filing a joint return and entitled to
four personal exemptions and to approximately 41 percent for taxpayers filing a
single return entitled to only one personal exemption. These limitations are
subject to certain maximums, which depend on the number of exemptions claimed
and the total amount of the taxpayer's itemized deductions. For example, the
limitation on itemized deductions will not cause a taxpayer to lose more than
80% of his allowable itemized deductions, with certain exceptions. See "Federal
Tax Status" for a more detailed discussion of recent Federal tax legislation,
including a discussion of provisions affecting corporations.
 
NATIONAL
 
<TABLE>
<CAPTION>
          TAXABLE INCOME ($1,000'S)                                      TAX-EXEMPT ESTIMATED CURRENT RETURN
     ------------------------------------                  ---------------------------------------------------------------
        SINGLE                  JOINT           TAX      3 1/2%      4%      4 1/2%      5%      5 1/2%      6%      6 1/2%
        RETURN                  RETURN        BRACKET                EQUIVALENT TAXABLE ESTIMATED CURRENT RETURN
        ------                  ------        --------     ---------------------------------------------------------------
<S>        <C>          <C>        <C>        <C>        <C>       <C>       <C>       <C>       <C>       <C>       <C>
  $     0 -      22.75    $     0 -      38.00    15   %  4.12%     4.71%     5.29%     5.88%     6.47%     7.06%     7.65%
    22.75 -      55.10      38.00 -      91.85    28      4.86      5.56      6.25      6.94      7.64      8.33      9.03
    55.10 -     115.00      91.85 -     140.00    31      5.07      5.80      6.52      7.25      7.97      8.70      9.42
   115.00 -     250.00     140.00 -     250.00    36      5.47      6.25      7.03      7.81      8.59      9.38     10.16
           Over 250.00             Over 250.00  39.6      5.79      6.62      7.45      8.28      9.11      9.93     10.76
</TABLE>
 
                                                                             7
 
<PAGE>
NEW YORK
 
<TABLE>
<CAPTION>
          TAXABLE INCOME ($1,000'S)                                      TAX-EXEMPT ESTIMATED CURRENT RETURN
     ------------------------------------                  ---------------------------------------------------------------
        SINGLE                  JOINT           TAX      3 1/2%      4%      4 1/2%      5%      5 1/2%      6%      6 1/2%
        RETURN                  RETURN        BRACKET*               EQUIVALENT TAXABLE ESTIMATED CURRENT RETURN
        ------                  ------        --------     ---------------------------------------------------------------
<S>        <C>          <C>        <C>        <C>        <C>       <C>       <C>       <C>       <C>       <C>       <C>
  $     0 -      22.75    $     0 -      38.00  21.5   %  4.46%     5.10%     5.73%     6.37%     7.01%     7.64%     8.28%
    22.75 -      55.10      38.00 -      91.85  33.5      5.26      6.02      6.77      7.52      8.27      9.02      9.77
    55.10 -     115.00      91.85 -     140.00  36.5      5.51      6.30      7.09      7.87      8.66      9.45     10.24
   115.00 -     250.00     140.00 -     250.00    41      5.93      6.78      7.63      8.47      9.32     10.17     11.02
           Over 250.00             Over 250.00  44.5      6.31      7.21      8.11      9.01      9.91     10.81     11.71
</TABLE>
 
- ------------
*Combined Federal and State tax bracket was computed assuming that the
investor is not subject to local income taxes, such as New York City taxes.
Should a Unitholder reside in a locality which imposes an income tax, the
Unitholder's equivalent taxable estimated current return would be greater than
the equivalent taxable estimated current returns indicated in the table. The
table does not reflect the recent enactment of a New York State supplemental
income tax based upon a taxpayer's New York State taxable income and New York
State adjusted gross income. This supplemental tax results in an increased
marginal state income tax rate to the extent a taxpayer's New York State
adjusted gross income ranges between $100,000 and $150,000. In addition, the
table does not reflect the amendments to the New York State income tax law
that imposes limitations on the deductibility of itemized deductions. The
application of the New York State limitation on itemized deductions may result
in a higher combined Federal, State and local tax rate than indicated in the
table. The table assumes for this purpose that a taxpayer's New York State
adjusted income equals his Federal adjusted gross income.
 
VIRGINIA
 
<TABLE>
<CAPTION>
          TAXABLE INCOME ($1,000'S)                                      TAX-EXEMPT ESTIMATED CURRENT RETURN
     ------------------------------------                  ---------------------------------------------------------------
        SINGLE                  JOINT         TAX        4 1/2%      5%      5 1/2%      6%      6 1/2%      7%      7 1/2%
        RETURN                  RETURN        BRACKET*               EQUIVALENT TAXABLE ESTIMATED CURRENT RETURN
        ------                  ------        --------     ---------------------------------------------------------------
<S>        <C>          <C>        <C>        <C>        <C>       <C>       <C>       <C>       <C>       <C>       <C>
  $     0 -      22.75    $     0 -      38.00  19.9   %  5.62%     6.24%     6.87%     7.49%     8.11%     8.74%     9.36%
    22.75 -      55.10      38.00 -      91.85  32.1      6.63      7.36      8.10      8.84      9.57     10.31     11.05
    55.10 -     115.00      91.85 -     140.00  35.0      6.92      7.69      8.46      9.23     10.00     10.77     11.54
   115.00 -     250.00     140.00 -     250.00  39.7      7.46      8.29      9.12      9.95     10.78     11.61     12.44
           Over 250.00             Over 250.00  43.1      7.91      8.79      9.67     10.54     11.42     12.30     13.18
</TABLE>
 
8
 
<PAGE>
 
<TABLE>
<S>                                <C>
KEMPER DEFINED FUNDS SERIES 13               INSURED NATIONAL SERIES 8
</TABLE>
 
PORTFOLIO
AS OF THE DATE OF DEPOSIT: FEBRUARY  , 1994
 
<TABLE>
<CAPTION>
              NAME OF ISSUER, TITLE, COUPON RATE AND MATURITY DATE
                                     OF BOND                                                         COST OF
 AGGREGATE       REPRESENTED BY SPONSOR'S CONTRACTS TO PURCHASE                    REDEMPTION         BONDS
 PRINCIPAL                         BONDS(1)(5)                       RATING(2)    PROVISIONS(3)    TO TRUST(4)
<C>           <S>                                                    <C>        <C>                <C>
- ---------------------------------------------------------------------------------------------------------------
</TABLE>
 
- ------------
 
See "Notes to Portfolios."
 
                                                                             9
 
<PAGE>
 
<TABLE>
<S>                                <C>
KEMPER DEFINED FUNDS SERIES 13                        INSURED NEW YORK
                                                              SERIES 4
</TABLE>
 
PORTFOLIO
AS OF THE DATE OF DEPOSIT: FEBRUARY  , 1994
 
<TABLE>
<CAPTION>
             NAME OF ISSUER, TITLE, COUPON RATE AND MATURITY DATE OF
                                      BOND                                                            COST OF
 AGGREGATE       REPRESENTED BY SPONSOR'S CONTRACTS TO PURCHASE                     REDEMPTION         BONDS
 PRINCIPAL                         BONDS(1)(5)                        RATING(2)    PROVISIONS(3)    TO TRUST(4)
<C>          <S>                                                      <C>        <C>                <C>
- ---------------------------------------------------------------------------------------------------------------
</TABLE>
 
- ------------
 
See "Notes to Portfolios."
 
10
 
<PAGE>
 
<TABLE>
<S>                                <C>
KEMPER DEFINED FUNDS SERIES 13                                VIRGINIA
                                                              SERIES 1
</TABLE>
 
PORTFOLIO
AS OF THE DATE OF DEPOSIT: FEBRUARY , 1994
 
<TABLE>
<CAPTION>
             NAME OF ISSUER, TITLE, COUPON RATE AND MATURITY DATE OF
                                      BOND                                                            COST OF
 AGGREGATE       REPRESENTED BY SPONSOR'S CONTRACTS TO PURCHASE                     REDEMPTION         BONDS
 PRINCIPAL                         BONDS(1)(5)                        RATING(2)    PROVISIONS(3)    TO TRUST(4)
<C>          <S>                                                      <C>        <C>                <C>
- ---------------------------------------------------------------------------------------------------------------
</TABLE>
 
- ------------
 
See "Notes to Portfolios."
 
                                                                            11
 
<PAGE>
NOTES TO PORTFOLIOS:
 
All insured Bonds in the Trust Funds are insured only by the insurer indicated
in the description. The insurance was obtained directly by the issuer of the
Bonds or by the Sponsor.
(P)    These Bonds have been purchased at an original issue discount from the
      par value because there is little or no stated interest income thereon.
      Over the life of these Bonds the value increases, so that upon maturity
      the holders of the Bonds will receive 100% of the principal amount
      thereof.
(S)    These Municipal Bonds are "when, as and if issued" or "delayed
      delivery" and have expected settlement dates after the "First Settlement
      Date." Interest on these Bonds begins accruing to the benefit of
      Unitholders on the date of delivery.
(C)    This Bond is of the same issue as another Bond in the Trust.
(D)    This issue of Bonds is secured by, and payable from, escrowed U.S.
      Government securities.
   
(1)   Contracts to acquire Municipal Bonds were entered into by the Sponsor
     between ___________ and ___________. All Bonds are represented by regular
     way contracts, unless otherwise indicated, for the performance of which
     an irrevocable letter of credit has been deposited with the Trustee.
    
(2)   The ratings have been provided by Muller Data Corporation as reported to
     Muller Data Corporation by the respective rating agencies. All ratings
     represent Standard & Poor's Corporation ratings unless marked with the
     symbol "(STAR)" in which case the rating represents a Moody's Investors
     Service, Inc. rating. A brief description of the applicable Standard &
     Poor's and Moody's rating symbols and their meanings is set forth under
     "Description of Municipal Bond Ratings." A rating marked by "g" is
     contingent upon Standard & Poor's Corporation receiving final
     documentation from the insurer.
(3)   There is shown under this heading the year in which each issue of
     Municipal Bonds is initially redeemable and the redemption price for that
     year; unless otherwise indicated, each issue continues to be redeemable
     at declining prices thereafter, but not below par value. The prices at
     which the Bonds may be redeemed or called prior to maturity may or may
     not include a premium and, in certain cases, may be less than the cost of
     the Bonds to the Trust. In addition, certain Bonds in the portfolio may
     be redeemed in whole or in part other than by operation of the stated
     redemption or sinking fund provisions under certain unusual or
     extraordinary circumstances specified in the instruments setting forth
     the terms and provisions of such Bonds. "S.F." indicates that a sinking
     fund is established with respect to an issue of Municipal Bonds.
(4)   During the initial offering period, evaluations of Municipal Bonds are
     made on the basis of current offering side evaluations of the Municipal
     Bonds. The aggregate offering price is greater than the aggregate bid
     price of the Municipal Bonds, which is the basis on which Redemption
     Prices will be determined for purposes of redemption of Units after the
     initial offering period.
(5)   Other information regarding the Municipal Bonds in the Trust Funds, at
     the opening of business on the Date of Deposit, is as follows:
 
<TABLE>
<CAPTION>
                                                                                         ANNUAL
                                                              COST OF      PROFIT OR    INTEREST     BID SIDE
                                                               BONDS       (LOSS) TO   INCOME TO      VALUE
                        TRUST FUND                           TO SPONSOR     SPONSOR      TRUST       OF BONDS
                                                            -----------    ---------   ---------   -----------
<S>                                                         <C>           <C>          <C>         <C>
Insured National Series 8.................................
Insured New York Series 4.................................
Virginia Series 1.........................................
</TABLE>
 
     Neither Cost of Bonds to Sponsor nor Profit or (Loss) to Sponsor reflects
     underwriting profits or losses received or incurred by the Sponsor
     through its participation in underwriting syndicates but such amounts
     reflect portfolio hedging transaction costs, hedging gains or losses,
     certain other carrying costs and the cost of insurance obtained by the
     Sponsor, if any, prior to the Date of Deposit for individual Bonds.
 
12
 
<PAGE>
UNDERWRITING
 
The Underwriters named below have severally purchased Units of the Trusts in
the following respective aggregate percentages:
 
<TABLE>
<CAPTION>
                                                                              INSURED         INSURED
                                                                              NATIONAL        NEW YORK        VIRGINIA
                                                                              SERIES 8        SERIES 4        SERIES 1
<S>                                                                        <C>             <C>             <C>
                                                                           --------------  --------------  --------------
</TABLE>
 
The Underwriters acquired the Units of the Trust Funds at a price per Unit
equal to the Public Offering Prices set forth under "Essential Information"
less the Underwriters' takedown. The amount of the Underwriters' takedown for
Trusts with a weighted average maturity less than 7.5 years for each Unit is
$.22 for those firms committing for 10,000-24,999 Units, $.22 plus 50% of any
net portfolio profit for those firms committing for 25,000-99,999 Units and
$.23 plus 50% of any net portfolio profit for those firms committing for
100,000 or more Units. The amount of the Underwriters' takedown for Trusts
with a weighted average maturity between 7.5 and 14.99 years for each Unit is
$.28 for those firms committing for 10,000-24,999 Units, $.28 plus 50% of any
net portfolio profit for those firms committing for 25,000-49,999 Units, $.29
plus 50% of any net portfolio profit for those firms committing for
50,000-99,999 Units and $.30 plus 50% of any net portfolio profit for those
firms committing for 100,000 or more Units. The amount of the Underwriters'
takedown for Trusts with a weighted average maturity greater than 14.99 years
for each Unit is $.31 for those firms committing for 10,000-24,999 Units, $.31
plus 50% of any net portfolio profit for those firms committing for
25,000-49,000 Units, $.32 plus 50% of any net portfolio profit for those firms
committing for 50,000-99,000 Units and $.33 plus 50% of any net portfolio
profit for those firms committing for 100,000 or more Units. In connection
with any quantity discounts (see "Public Offering of Units--Public Offering
Price"), the Sponsor and the applicable Underwriter will each receive reduced
concessions as a result of the reduced sales charges to the investor. In
addition to such discounts, the Sponsor may, from time to time, pay or allow
an additional discount, in the form of cash or other compensation, to dealers
who underwrite additional Units of a Trust or who sell, during a specified
time period, a minimum dollar amount of Units of a Trust and other unit
investment trusts underwritten by the Sponsor. The Underwriting Agreement
provides that the Sponsor will select and purchase the Municipal Bonds for
deposit in the Trust Funds on its own behalf and on behalf of the other
Underwriters.
 
The Underwriting Agreement provides that a public offering of the Units of the
Trust Funds will be made by the Underwriters at the Public Offering Price
described in the Prospectus. Units may also be sold to or through dealers, who
are members of the National Association of Securities Dealers, Inc., and
others at prices representing discounts from the Public Offering Price.
However, resales of Units of the Trust Funds to the public will be made at the
Public Offering Price thereof.
 
                                                                            13
 
<PAGE>
Underwriters and broker-dealers of the Trusts, banks and/or others are
eligible to participate in a program in which such firms receive from the
Sponsor a nominal award for each of their representatives who have sold a
minimum number of Units of unit investment trusts created by the Sponsor
during a specified time period. In addition, at various times the Sponsor may
implement other programs under which the sales forces of Underwriters,
brokers, dealers, banks and/or others may be eligible to win other nominal
awards for certain sales efforts, or under which the Sponsor will reallow to
any such Underwriters, brokers, dealers, banks and/or others that sponsor
sales contests or recognition programs conforming to criteria established by
the Sponsor, or participate in sales programs sponsored by the Sponsor, an
amount not exceeding the total applicable sales charges on the sales generated
by such persons at the public offering price during such programs. Also, the
Sponsor in its discretion may from time to time pursuant to objective criteria
established by the Sponsor pay fees to qualifying underwriters, brokers,
dealers, banks or others for certain services or activities which are
primarily intended to result in sales of Units of the Trusts. Such payments
are made by the Sponsor out of its own assets, and not out of the assets of
the Trusts. These programs will not change the price Unitholders pay for their
Units or the amount that the Trusts will receive from the Units sold.
Approximately every eighteen months the Sponsor holds a business seminar which
is open to Underwriters that sell units of trusts it sponsors. The Sponsor
pays substantially all costs associated with the seminar, excluding
Underwriter travel costs. Each Underwriter is invited to send a certain number
of representatives based on the gross number of units such firm underwrites
during a designated time period.
 
14
 
<PAGE>
REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
UNITHOLDERS
 
KEMPER DEFINED FUNDS SERIES 13:
 
   
We have audited the accompanying statements of condition and the related
portfolios of Kemper Defined Funds Series 13 (Insured National Series 8,
Insured New York Series 4 and Virginia Series 1) as of February  , 1994. The
statements of condition and portfolios are the responsibility of the Sponsor.
Our responsibility is to express an opinion on such 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 Municipal Bonds owned at February  , 1994
and a letter of credit deposited to purchase Municipal Bonds 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 our audit provides a
reasonable basis for our opinion.
    
 
   
In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Kemper Defined Funds Series
13 (Insured National Series 8, Insured New York Series 4 and Virginia Series
1) as of February  , 1994, in conformity with generally accepted accounting
principles.
    
 
                                                  GRANT THORNTON
 
Chicago, Illinois
 
   
February  , 1994
    
 
                                                                            15
 
<PAGE>
KEMPER DEFINED FUNDS SERIES 13
 
STATEMENTS OF CONDITION
 
AT THE OPENING OF BUSINESS ON FEBRUARY  , 1994, THE DATE OF DEPOSIT
 
<TABLE>
<CAPTION>
                                                                         INSURED         INSURED
                                                                         NATIONAL        NEW YORK        VIRGINIA
                                                                         SERIES 8        SERIES 4        SERIES 1
                                                                      -------------   -------------   -------------
<S>                                                                   <C>             <C>             <C>
INVESTMENT IN MUNICIPAL BONDS
Municipal Bonds deposited in the Trusts (1)(4)......................
Contracts to purchase Municipal Bonds (1)(4)........................
Accrued Interest to First Settlement Date on Municipal Bonds
  (1)(2)............................................................
                                                                        -----------      ----------      ----------
Total...............................................................
                                                                        -----------      ----------      ----------
                                                                        -----------      ----------      ----------
Number of Units.....................................................
LIABILITIES AND INTEREST OF UNITHOLDERS
Accrued Interest payable to Sponsor (1)(2)..........................   $    --        $     --        $     --
Interest of Unitholders--
Cost to investors (3)...............................................
    Less: Gross underwriting commission (3).........................
                                                                       ------------     -----------     -----------
Net interest to Unitholders (1)(2)(3)...............................
                                                                       ------------     -----------     -----------
Total...............................................................
                                                                       ------------     -----------     -----------
                                                                       ------------     -----------     -----------
</TABLE>
 
- ------------
 
NOTES:
 
   
(1)   The aggregate value of the Municipal Bonds listed in each Portfolio and
     their cost to the Trust are the same. The value of the Municipal Bonds is
     determined by Muller Data Corporation on the bases set forth under
     "Public Offering of Units--Public Offering Price". The contracts to
     purchase Municipal Bonds are collateralized by an irrevocable letter of
     credit of $___________ which has been deposited with the Trustee. Of this
     amount, $___________relates to the offering price of amount of Municipal
     Bonds to be purchased and $_______ relates to accrued interest on such
     Municipal Bonds to the expected dates of delivery.
    
   
(2)   Accrued interest on the underlying Municipal Bonds represents the
     interest accrued as of the First Settlement Date from the later of the
     last payment date on the Bonds of the date of issuance thereof. The
     Trustee may advance to the Trust a portion of the accrued interest on the
     underlying Municipal Bonds for distribution to the Sponsor as the
     Unitholder of record as of the First Settlement Date. A portion of the
     accrued interest on the underlying Municipal Bonds is payable by
     investors and is included in the Public Offering Price. This portion is
     called Purchased Interest and represents the difference between Accrued
     Interest to First Settlement Date on Municipal Bonds and Accrued Interest
     payable to Sponsor (see "Essential Information").
    
   
(3)   The aggregate public offering price includes a sales charge for the
     Trust as set forth under Essential Information, assuming all single
     transactions involve less than 10,000 Units. For single transactions
     involving 10,000 or more Units, the sales charge is reduced (see "Public
     Offering of Units--Public Offering Price") resulting in an equal
     reduction in both the Cost to investors and the Gross underwriting
     commission while the Net interest to Unitholders remains unchanged.
    
   
(4)   Insurance coverage providing for the timely payment of principal and
     interest on the Municipal Bonds in the Insured Trusts has been obtained
     directly by the issuer of such Municipal Bonds or by the Sponsor from
     Municipal Bond Investors Assurance Corporation or other insurers.
    
 
16
 
<PAGE>
SPECIAL CONSIDERATIONS AND STATE TAX STATUS
 
INSURED NEW YORK SERIES 4
 
SPECIAL CONSIDERATIONS
 
The portfolio of Insured New York Series 4 includes certain bonds issued by
New York State (the "State"), by its various public bodies (the "Agencies"),
and/or by other entities located within the State, including the City of New
York (the "City").
 
Some of the more significant events and conditions relating to the financial
situation in New York are summarized below. This section provides only a brief
summary of the complex factors affecting the financial situation in New York
and is derived from sources that are generally available to investors and is
believed to be accurate. It is based in part on Official Statements and
prospectuses issued by, and on other information reported by the State, the
City and their agencies in connection with the issuance of their respective
securities.
 
There can be no assurance that current or future statewide or regional
economic difficulties, and the resulting impact on State or local government
finances generally, will not adversely affect the market value of New York
Municipal Obligations held in the portfolio of the Fund or the ability of
particular obligors to make timely payments of debt service on (or relating
to) those obligations.
 
The State has historically been one of the wealthiest states in the nation.
For decades, however, the State economy has grown more slowly than that of the
nation as a whole, gradually eroding the State's relative economic affluence.
Statewide, urban centers have experienced significant changes involving
migration of the more affluent to the suburbs and an influx of generally less
affluent residents. Regionally, the older Northeast cities have suffered
because of the relative success that the South and the West have had in
attracting people and business. The City has also had to face greater
competition as other major cities have developed financial and business
capabilities which make them less dependent on the specialized services
traditionally available almost exclusively in the City.
 
The State has for many years had a very high state and local tax burden
relative to other states. The burden of State and local taxation, in
combination with the many other causes of regional economic dislocation, has
contributed to the decisions of some businesses and individuals to relocate
outside, or not locate within, the State.
 
A national recession commenced in mid-1990. The downturn continued throughout
the State's 1990-91 fiscal year and was followed by a period of weak economic
growth during the 1991 calendar year. For calendar year 1992, the national
economy continued to recover, although at a rate below all post-war
recoveries. For calendar year 1993, the economy is expected to grow faster
than 1992, but still at a very moderate rate as compared to other recoveries.
The national recession has been more severe in the State because of factors
such as a significant retrenchment in the financial services industry,
cutbacks in defense spending, and an overbuilt real estate market.
 
1993-94 Fiscal Year. On April 5, 1993, the State Legislature approved a $32.08
billion budget. Following enactment of the budget the 1993-94 State Financial
Plan was formulated on April 16, 1993. This Plan projects General Fund
receipts and transfers from other funds at $32.367 billion and disbursements
and transfers to other funds at $32.300 billion. In comparison to the
Governor's recommended Executive Budget for the 1993-94 fiscal year, as
revised on February 18, 1993, the 1993-94 State Financial Plan reflects
increases in both receipts and disbursements in the General Fund of $811
million.
 
                                                                            17
 
<PAGE>
While a portion of the increased receipts was the result of a $487 million
increase in the State's 1992-93 positive year-end margin at March 31, 1993 to
$671 million, the balance of such increased receipts is based upon (i) a
projected $269 million increase in receipts resulting from improved 1992-93
results and the expectation of an improving economy, (ii) projected additional
payments of $200 million from the Federal government as reimbursements for
indigent medical care, (iii) the early payment of $50 million of personal tax
returns in 1992-93 which otherwise would have been paid in 1993-94; offset by
(iv) the State Legislature's failure to enact $195 million of additional
revenue-raising recommendations proposed by the Governor. There can be no
assurances that all of the projected receipts referred to above will be
received.
 
Despite the $811 million increase in disbursements included in the 1993-94
State Financial Plan, a reduction in aid to some local government units can be
expected. To offset a portion of such reductions, the 1993-94 State Financial
Plan contains a package of mandate relief, cost containment and other
proposals to reduce the costs of many programs for which local governments
provide funding. There can be no assurance, however, that localities that
suffer cuts will not be adversely affected, leading to further requests for
State financial assistance.
 
There can be no assurance that the State will not face substantial potential
budget gaps in the future resulting from a significant disparity between tax
revenues projected from a lower recurring receipts base and the spending
required to maintain State programs at current levels. To address any
potential budgetary imbalance, the State may need to take significant actions
to align recurring receipts and disbursements.
 
1992-93 Fiscal Year. Before giving effect to a 1992-93 year-end deposit to the
refund reserve account of $671 million, General Fund receipts in 1992-93 would
have been $716 million higher than originally projected. This year-end deposit
effectively reduced 1992-93 receipts by $671 million and made those receipts
available for 1993-94.
 
The State's favorable performance primarily resulted from income tax
collections that were $700 million higher than projected which reflected both
stronger economic activity and tax-induced one-time acceleration of income
into 1992. In other areas larger than projected business tax collections and
unbudgeted receipts offset the loss of $200 million of anticipated Federal
reimbursement and losses of, or shortfalls in, other projected revenue
sources.
 
   
For 1992-93 disbursements and transfers to other funds (including the deposit
to the refund reserve account discussed above) totalled $30.829 billion, an
increase of $45 million above projections in April 1992. After adjusting for a
$150 million payment from the Medical Malpractice Insurance Association to
health insurers pursuant to legislation adopted in January 1993, actual
disbursements were $105 million lower than projected.
    
 
Fiscal year 1992-93 was the first time in four years that the State did not
incur a cash-basis operating deficit in the General Fund requiring the
issuance of deficit notes or other bonds, spending cuts or other revenue
raising measures.
 
Indebtedness. As of March 31, 1993, the total amount of long-term State
general obligation debt authorized but unissued stood at $2.4 billion. As of
the same date, the State had approximately $5.4 billion in general obligation
bonds. The State issued $850 million in tax and revenue anticipation notes
("TRANS") on April 28, 1993. The State does not project the need to issue
additional TRANS during the State's 1993-94 fiscal year.
 
The State anticipates that its borrowings for capital purposes during the
State's 1993-94 fiscal year will consist of $460 million in general obligation
bonds and $140 million in bonds for the purpose of redeeming outstanding bond
anticipation notes. The Legislature has authorized the issuance of up to $85
million in
18
 
<PAGE>
certificates of participation during the State's 1993-94 fiscal year for
personal and real property acquisitions. The projection of the State regarding
its borrowings for the 1993-94 fiscal year may change if actual receipts fall
short of State projections or if other circumstances require.
 
In June 1990, legislation was enacted creating the "New York Local Government
Assistance Corporation" ("LGAC"), a public benefit corporation empowered to
issue long-term obligations to fund certain payments to local governments
traditionally funded through the State's annual seasonal borrowing. To date,
LGAC has issued its bonds to provide net proceeds of $3.28 billion. LGAC has
been authorized to issue additional bonds to provide net proceeds of $703
million during the State's 1993-94 fiscal year.
 
The $850 million in TRANS issued by the State in April 1993 were rated
SP-1-Plus by S&P on April 26, 1993, and MIG-1 by Moody's on April 23, 1993,
which represents the highest ratings given by such agencies and the first time
the State's TRANS have received these ratings since its May 1989 TRANS
issuance. Both agencies cited the State's improved fiscal position as a
significant factor in the upgrading of the April 1993 TRANS.
 
Moody's rating of the State's general obligation bonds stood at A on April 23,
1993, and S&P's rating stood at A-with a stable outlook on April 26, 1993, an
improvement from S&P's negative outlook prior to April 1993. Previously,
Moody's lowered its rating to A on June 6, 1990, its rating having been A1
since May 27, 1986. S&P lowered its rating from A to A-on January 13, 1992.
S&P's previous ratings were A from March 1990 to January 1992, AA-from August
1987 to March 1990 and A+ from November 1982 to August 1987.
 
Moody's, in confirming its rating of the State's general obligation bonds, and
S&P, in improving its outlook on such bonds from negative to stable, noted the
State's improved fiscal condition and reasonable revenue assumptions contained
in the 1993-94 State budget.
 
New York City accounts for approximately 41% of the State's population and
personal income, and the City's financial health affects the State in numerous
ways.
 
In response to the City's fiscal crisis in 1975, the State took a number of
steps to assist the City in returning to fiscal stability. Among other
actions, the State Legislature (i) created the Municipal Assistance
Corporation ("MAC") to assist with long-term financing for the City's
short-term debt and other cash requirements and (ii) created the State
Financial Control Board (the "Control Board") to review and approve the City's
budgets and City four-year financial plans (the financial plans also apply to
certain City-related public agencies (the "Covered Organizations")).
 
Over the past three years, the rate of economic growth in the City has slowed
substantially, and the City's economy is currently in recession. The City
projects and its current four-year financial plan assumes a recovery early in
the 1993 calendar year. The Mayor is responsible for preparing the City's
four-year financial plan, including the City's current financial plan. The
City Comptroller has issued reports concluding that the recession of the
City's economy will be more severe and last longer than is assumed in the
Financial Plan.
 
Fiscal Year 1993, 1993-1996 and 1994-1997 Financial Plan. The City's 1993
fiscal year results are projected to be balanced in accordance with generally
accepted accounting principles ("GAAP"). The City was required to close
substantial budget gaps in its 1990, 1991 and 1992 fiscal years in order to
maintain balanced operating results.
 
The City's modified 1993-1996 Financial Plan dated February 9, 1993 covering
fiscal years 1993-1996 projects budget gaps for 1994 through 1996 and is
dependent upon a gap-closing program, certain elements of which the staff of
the Control Board identified on March 25, 1993 to be at risk due to projected
levels of
                                                                            19
 
<PAGE>
   
State and Federal aid and revenue and expenditures estimates which may not be
achievable. On June 4, 1993, the Office of the State Deputy Comptroller
("OSDC") reported that expenditures for the 1994 fiscal year could be $280
million higher than projected in May 1993 by the City and revenues for the
same period could be $111 million lower than projected. The OSDC also noted
possible increases in budget gaps forecast by the City.
    
 
   
The City Council adopted a balanced budget for Fiscal Year 1993-1994 on June
14, 1993. The State Comptroller on that date criticized efforts by the Mayor
and City Council to balance the City's budget which rely primarily on one-shot
revenues. The State Comptroller added that the City's budget should be based
on "recurring revenues that fund recurring expenditures." In a report issued
on June 15, 1993, the Control Board also criticized the reliance by the City
on $1 billion of such one-shot revenues to balance the budget. On June 30,
1993, S&P announced that it was concerned with budget gaps in post-1994 fiscal
years and the inability of the City to restrain spending and, due to this
concern, it was reviewing the rating of the City's general obligation bonds.
    
 
   
In response to S&P's announcement, the Mayor's Office and the City Comptroller
met with staff of S&P and proposed $130 million of additional cuts in the
recently adopted budget for fiscal year 1994 through reduced spending for
capital projects, savings through workforce attrition and other measures. In
addition, the Mayor proposed $400 million in cuts from the City's fiscal year
1995 budget. Following review of the proposed cuts, S&P announced on July 2,
1993, that it would maintain its current A-rating of the City's general
obligation bonds, but S&P indicated that it remains concerned about budgets
for fiscal year 1995 and thereafter.
    
 
   
On July 6, 1993, the City prepared its Financial Plan for fiscal years
1994-1997 which projects a balanced budget for fiscal year 1994 and identifies
approximately $2.0 billion in gap closing measures including productivity
savings, service reductions, sale of delinquent real property tax receivables,
transfers from fiscal year 1993, reduced debt service costs, increased State
and Federal aid, a continuation of the personal income tax surcharge and other
actions to reduce expenditures and increase revenues. This 1994-1997 Financial
Plan projects budget gaps of $1.3 billion, $1.8 billion, and $2.0 billion in
fiscal years 1995 through 1997, respectively. On August 4, 1993, the City
Comptroller in a report on the 1994-1997 Financial Plan identified risks of
$340 million, $1.5 billion, $2.0 billion and $2.2 billion in fiscal years 1994
through 1997, respectively, which could negatively affect gap-closing efforts.
The City Comptroller noted uncertainties associated with anticipated Federal
aid, projected proceeds from the sale or reorganization of Off Track Betting
operations and approval of certain productivity savings relating to teachers.
    
 
   
An August 5, 1993 report of the Control Board on the 1994-1997 Financial Plan
also identified risks in the City's proposed budget gap reductions, including
items identified by the City Comptroller and uncertainties associated with the
level of the State aid and the City's revenue and expenditure estimates. The
Control Board estimated gap-closing risks to be slightly higher than indicated
in the City Comptroller's report, $687 million, $1.9 billion, $2.4 billion and
$2.5 billion in fiscal years 1994 through 1997, respectively.
    
 
   
OSDC's report on the 1994-1997 Financial Plan released on August 10, 1993,
also projected that budget gaps could be higher than those set forth in such
Plan. The OSDC report stated that in fiscal year 1994 expenditures could be
$240 million higher and revenues $182 million lower than projected by the
City. OSDC also noted that budget gaps could increase by $556 million, $561
million and $515 million in fiscal years 1995 through 1997, respectively,
above City projections as the result of higher payments to Covered
Organizations, higher overtime costs and lower than anticipated lottery and
tax receipts.
    
 
20
 
<PAGE>
Given the foregoing factors, there can be no assurance that the City will
continue to maintain a balanced budget, or that it can maintain a balanced
budget without additional tax or other revenue increases or reductions in City
services, which could adversely affect the City's economic base.
 
Pursuant to the laws of the State, the City prepares a four-year annual
financial plan, which is reviewed and revised on a quarterly basis and which
includes the City's capital, revenue and expense projections. The City is
required to submit its financial plans to review bodies, including the Control
Board. If the City were to experience certain adverse financial circumstances,
including the occurrence or the substantial likelihood and imminence of the
occurrence of an annual operating deficit of more than $100 million or the
loss of access to the public credit markets to satisfy the City's capital and
seasonal financing requirements, the Control Board would be required by State
law to exercise certain powers, including prior approval of City financial
plans, proposed borrowings and certain contracts.
 
The City depends on the State for State aid both to enable the City to balance
its budget and to meet its cash requirements. If the State experiences revenue
shortfalls or spending increases beyond its projections during its 1993 fiscal
year or subsequent years, such developments could result in reductions in
projected State aid to the City. In addition, there can be no assurance that
State budgets in future fiscal years will be adopted by the April 1 statutory
deadline and that there will not be adverse effects on the City's cash flow
and additional City expenditures as a result of such delays.
 
The City's projections set forth in the financial plan are based on various
assumptions and contingencies which are uncertain and which may not
materialize. Changes in major assumptions could significantly affect the
City's ability to balance its budget as required by State law and to meet its
annual cash flow and financing requirements. Such assumptions and
contingencies include the timing of any regional and local economic recovery,
the absence of wage increases in excess of the increases assumed in the
financial plan, employment growth, provision of State and Federal aid and
mandate relief, State legislative approval of future State budgets, levels of
education expenditures as may be required by State law, adoption of future
City budgets by the New York City Council, and approval by the Governor, the
State Legislature and the cooperation of MAC with respect to various other
actions proposed in the financial plan.
 
The City's ability to maintain a balanced operating budget is dependent on
whether it can implement necessary service and personnel reduction programs
successfully. As discussed above, the City must identify additional
expenditure reductions and revenue sources to achieve operating budgets for
fiscal years 1994 and thereafter. Any such proposed expenditure reductions
will be difficult to implement because of their size and the substantial
expenditure reductions already imposed on City operations in the past two
years.
 
   
Attaining a balanced budget is also dependent upon the City's ability to
market its securities successfully in the public credit markets. The City's
financing program for fiscal years 1994 through 1997 contemplates capital
spending of $16.2 billion, which will be financed through issuance of $10.5
billion of general obligation bonds, $4.3 billion of Water Authority Revenue
Bonds and the balance by Covered Organization obligations, and will be
utilized primarily to reconstruct and rehabilitate the City's infrastructure
and physical assets and to make capital investments. A significant portion of
such bond financing is used to reimburse the City's general fund for capital
expenditures already incurred. In addition, the City issues revenue and tax
anticipation notes to finance its seasonal working capital requirements. The
terms and success of projected public sales of City general obligation bonds
and notes will be subject to prevailing market conditions at the time of the
sale, and no assurance can be given that the credit markets will absorb the
projected amounts of public bond and note sales. In addition, future
developments concerning the City and public discussion of such developments,
the City's future financial needs and other issues may affect the market for
outstanding
                                                                            21
    
 
<PAGE>
City general obligation bonds and notes. If the City were unable to sell its
general obligation bonds and notes, it would be prevented from meeting its
planned operating and capital expenditures.
 
Fiscal Years 1990, 1991 and 1992. The City achieved balanced operating results
as reported in accordance with GAAP for the 1992 fiscal year. During the 1990
and 1991 fiscal years, the City implemented various actions to offset a
projected budget deficit of $3.2 billion for the 1991 fiscal year, which
resulted from declines in City revenue sources and increased public assistance
needs due to the recession. Such actions included $822 million of tax
increases and substantial expenditure reductions.
 
The City is a defendant in a significant number of lawsuits. Such litigation
includes, but is not limited to, actions commenced and claims asserted against
the City arising out of alleged constitutional violations, torts, breaches of
contracts and other violations of law and condemnation proceedings. While the
ultimate outcome and fiscal impact, if any, on the proceedings and claims are
not currently predictable, adverse determination in certain of them might have
a material adverse effect upon the City's ability to carry out its Financial
Plan. As of June 30, 1992, legal claims in excess of $341 billion were
outstanding against the City for which the City estimated its potential future
liability to be $2.3 billion.
 
As of the date of this prospectus, Moody's rating of the City's general
obligation bonds stood at Baa1 and S&P's rating stood at A-. On February 11,
1991, Moody's had lowered its rating from A.
 
On June 30, 1993 in confirming the Baa1 rating, Moody's noted that:
 
   
     The recent trend of declining reliance on [one-shot revenues] is notable,
     and it is too early to predict that the increased reliance on one-shots
     in the fiscal 1994 budget represents the beginning of a continuing upward
     movement in the use of one-shots._._._. Moody's recognized in February of
     1991, when the [C]ity's rating was lowered from A to Baa1, that the
     [C]ity faced structural budgetary imbalances which were unlikely to be
     cured in the near term. Moody's continues to expect the [C]ity's progress
     toward achieving structural balance to be slow and uneven, but that the
     [C]ity will be diligent and prudent in closing each year's gap, factors
     which are consistent with the Baa1 rating level.
    
 
   
On August 11, 1993, Moody's confirmed the City's Baa1 rating in connection
with the City's $300 million general obligation bond issue on that date.
    
 
On March 30, 1993, S&P affirmed its rating with a negative outlook, stating
that:
 
     The City's key credit factors are marked by a high and growing debt
     burden, and taxation levels that are relatively high, but stable. The
     City's economy is broad-based and diverse, but currently is in prolonged
     recession, with slow growth prospects for the foreseeable future.
 
     The rating outlook is negative, reflecting the continued fiscal pressure
     facing the City, driven by continued weakness in the local economy,
     rising spending pressures for education and labor costs of city
     employees, and increasing costs associated with rising debt for capital
     construction and repair.
 
     The current financial plan for the City assumes substantial increases in
     aid from national and state governments. Maintenance of the current
     rating, and stabilization of the rating outlook, will depend on the
     City's success in realizing budgetary aid from these governments, or
     replacing those revenues with ongoing revenue-raising measures or
     spending reductions under the City's control. However, increased reliance
     on non-recurring budget balancing measures that would support current
     spending, but defer budgetary gaps to future years, would be viewed by
     S&P as detrimental to New York City's single-'A-' rating.
 
22
 
<PAGE>
   
As discussed above under Fiscal Year 1993 and 1993-1996 Financial Plan, on
July 2, 1993 after a review of the City's budget for fiscal year 1994, its
proposed budget for fiscal year 1995 and certain additional cuts in both
proposed by the Mayor and the City Comptroller, S&P confirmed its A-rating
with a negative outlook of the City's general obligation bonds.
    
 
On May 9, 1990, Moody's revised downward its rating on outstanding City
revenue anticipation notes from MIG-1 to MIG-2 and rated the $900 million
Notes then being sold MIG-2. On April 30, 1991 Moody's confirmed its MIG-2
rating for the outstanding revenue anticipation notes and for the $1.25
billion in notes then being sold. On April 29, 1991, S&P revised downward its
rating on City revenue anticipation notes from SP-1 to SP-2.
 
As of December 31, 1992, the City and MAC had, respectively, $20.3 billion and
$4.7 billion of outstanding net long-term indebtedness.
 
Certain Agencies of the State have faced substantial financial difficulties
which could adversely affect the ability of such Agencies to make payments of
interest on, and principal amounts of, their respective bonds. The
difficulties have in certain instances caused the State (under so-called
"moral obligation" provisions which are non-binding statutory provisions for
State appropriations to maintain various debt service reserve funds) to
appropriate funds on behalf of the Agencies. Moreover, it is expected that the
problems faced by these Agencies will continue and will require increasing
amounts of State assistance in future years. Failure of the State to
appropriate necessary amounts or to take other action to permit those Agencies
having financial difficulties to meet their obligations could result in a
default by one or more of the Agencies. Such default, if it were to occur,
would be likely to have a significant adverse effect on investor confidence
in, and therefore the market price of, obligations of the defaulting Agencies.
In addition, any default in payment on any general obligation of any Agency
whose bonds contain a moral obligation provision could constitute a failure of
certain conditions that must be satisfied in connection with Federal
guarantees of City and MAC obligations and could thus jeopardize the City's
long-term financing plans.
 
As of September 30, 1992, the State reported that there were eighteen Agencies
that each had outstanding debt of $100 million or more. These eighteen
Agencies had an aggregate of $62.2 billion of outstanding debt, including
refunding bonds, of which, the State was obligated under lease-purchase,
contractual obligation or moral obligation provisions on $25.3 billion.
 
The State is a defendant in numerous legal proceedings pertaining to matters
incidental to the performance of routine governmental operations. Such
litigation includes, but is not limited to, claims asserted against the State
arising from alleged torts, alleged breaches of contracts, condemnation
proceedings and other alleged violations of State and Federal laws. Included
in the State's outstanding litigation are a number of cases challenging the
constitutionality or the adequacy and effectiveness of a variety of
significant social welfare programs primarily involving the State's mental
hygiene programs. Adverse judgments in these matters generally could result in
injunctive relief coupled with prospective changes in patient care which could
require substantial increased financing of the litigated programs in the
future.
 
The State is also engaged in a variety of claims wherein significant monetary
damages are sought. Actions commenced by several Indian nations claim that
significant amounts of land were unconstitutionally taken from the Indians in
violation of various treaties and agreements during the eighteenth and
nineteenth centuries. The claimants seek recovery of approximately six million
acres of land as well as compensatory and punitive damages.
 
The U.S. Supreme Court on March 30, 1993, referred to a Special Master for
determination of damages on an action by the State of Delaware to recover
certain unclaimed dividends, interest and other distributions
                                                                            23
 
<PAGE>
made by issuers of securities held by New York based-brokers incorporated in
Delaware. (State of Delaware v. State of New York.) The State had taken such
unclaimed property under its Abandoned Property Law. The State expects that it
may pay a significant amount in damages during fiscal year 1993-94 but it has
indicated that it has sufficient funds on hand to pay any such award,
including funds held in contingency reserves. The State's 1993-94 Financial
Plan includes the establishment of a $100 million contingency reserve fund
which would be available to fund such an award which some reports have
estimated at $100-$300 million.
 
In Schulz v. State of New York, commenced May 24, 1993 ("Schulz 1993"),
petitioners have challenged the constitutionality of mass transportation
bonding programs of the New York State Thruway Authority and the Metropolitan
Transportation Authority. On May 24, 1993, the Supreme Court, Albany County,
temporarily enjoined the State from implementing those bonding programs. In
previous actions Mr. Schulz and others have challenged on similar grounds
bonding programs for the New York State Urban Development Corporation and the
New York Local Government Assistance Corporation. While there have been no
decisions on the merits in such previous actions, by an opinion dated May 11,
1993, the New York Court of Appeals held in a proceeding commenced on April
29, 1991 in the Supreme Court, Albany County (Schulz v. State of New York),
that petitioners had standing as voters under the State Constitution to bring
such action.
 
Petitioners in Schulz 1993 have asserted that issuance of bonds by the two
Authorities is subject to approval by statewide referendum. At this time there
can be no forecast of the likelihood of success on the merits by the
petitioners, but a decision upholding this constitutional challenge could
restrict and limit the ability of the State and its instrumentalities to
borrow funds in the future. The State has not indicated that the temporary
injunction issued by the Supreme Court in this action will have any immediate
impact on its financial condition or interfere with projects requiring
immediate action.
 
On July 1, 1993, the Appellate Division of the State Supreme Court affirmed
the decision of the Supreme Court, Albany County in three actions, declaring
unconstitutional State legislation affecting actuarial funding methods for
determining State and local contributions to the State employee retirement
system. The State Comptroller's office has projected that the impact of the
decision with respect to 1990-91 fiscal year contributions alone could require
additional State and local employer contributions of approximately $800
million. A final adverse decision in these three actions could have a material
adverse effect on the financial condition of the State and its local
governments.
 
Adverse developments in the foregoing proceedings or new proceedings could
adversely affect the financial condition of the State in the future.
 
Certain localities in addition to New York City could have financial problems
leading to requests for additional State assistance. The potential impact on
the State of such actions by localities is not included in projections of
State revenues and expenditures in the State's 1993-94 fiscal year.
 
Fiscal difficulties experienced by the City of Yonkers ("Yonkers") resulted in
the creation of the Financial Control Board for the City of Yonkers (the
"Yonkers Board") by the State in 1984. The Yonkers Board is charged with
oversight of the fiscal affairs of Yonkers. Future actions taken by the
Governor or the State Legislature to assist Yonkers could result in allocation
of State resources in amounts that cannot yet be determined.
 
Municipalities and school districts have engaged in substantial short-term and
long-term borrowings. In 1991, the total indebtedness of all localities in the
State was approximately $31.6 billion, of which $16.8 billion was debt of New
York City (excluding $6.7 billion in MAC debt). State law requires the
Comptroller to
24
 
<PAGE>
review and make recommendations concerning the budgets of those local
government units other than New York City authorized by State law to issue
debt to finance deficits during the period that such deficit financing is
outstanding. Fifteen localities had outstanding indebtedness for deficit
financing at the close of their fiscal year ending in 1991. In 1992, an
unusually large number of local government units requested authorization for
deficit financings. According to the Comptroller, ten local government units
have been authorized to issue deficit financing in the aggregate amount of
$131.1 million.
 
Certain proposed Federal expenditure reductions could reduce, or in some cases
eliminate, Federal funding of some local programs and accordingly might impose
substantial increased expenditure requirements on affected localities. If the
State, New York City or any of the Agencies were to suffer serious financial
difficulties jeopardizing their respective access to the public credit
markets, the marketability of notes and bonds issued by localities within the
State, including bonds in Insured New York Long-Intermediate Value Trust,
could be adversely affected. Localities also face anticipated and potential
problems resulting from certain pending litigation, judicial decisions, and
long-range economic trends. The longer-range potential problems of declining
urban population, increasing expenditures, and other economic trends could
adversely affect certain localities and require increasing State assistance in
the future.
 
   
Other Issuers of New York Municipal Obligations.  There are a number of other
agencies, instrumentalities and political subdivisions of the State that issue
Municipal Obligations, some of which may be conduit revenue obligations
payable from payments from private borrowers. These entities are subject to
various economic risks and uncertainties, and the credit quality of the
securities issued by them may vary considerably from the credit quality of
obligations backed by the full faith and credit of the State.
    
 
NEW YORK TAX STATUS
 
In the opinion of Tanner, Propp & Farber, special counsel to the Fund for New
York tax matters, under existing New York law:
 
Insured New York Series 4 is not an association taxable as a corporation and
the income of the Insured New York Series 4 will be treated as the income of
the Unitholders under the income tax laws of the State and City of New York.
Individuals who reside in New York State or City will not be subject to State
and City tax on interest income which is exempt from Federal income tax under
section 103 of the Internal Revenue Code of 1986 and derived from obligations
of New York State or a political subdivision thereof, although they will be
subject to New York State and City tax with respect to any gains realized when
such obligations are sold, redeemed or paid at maturity or when any such Units
are sold or redeemed.
 
For a discussion of Federal tax matters relating to distributions from the
Trust Fund, see "Federal Tax Status."
 
VIRGINIA SERIES 1
 
SPECIAL CONSIDERATIONS
 
The Commonwealth's financial condition is supported by a broad-based economy,
including manufacturing, tourism, agriculture, ports, mining and fisheries.
Manufacturing continues to be a major source of employment, ranking behind
only services, wholesale and retail trade, and government (Federal, state and
local). The Federal government is a major employer in Virginia due to the
heavy concentration of Federal employees in the metropolitan Washington, D.C.
segment of Northern Virginia and the military employment in the Hampton Roads
area, which houses the nation's largest concentration of military
installations.
                                                                            25
 
<PAGE>
However, the expected retrenchment of the military sector as a consequence of
the end of the Cold War remains a cloud on the economic horizon.
 
In recent years per capita personal income in Virginia has consistently been
above the national average. However, while total personal income has continued
to rise during the current recession, it has not always kept pace with both
inflation and the population, either nationally or in Virginia. Real personal
income in Virginia fell for seven consecutive quarters, ending with the last
quarter of 1991, with a slow recovery being evidenced in 1992. The annualized
rate of growth in real personal income in Virginia for the second quarter of
1992 was 0.5 percent compared to a national rate of 0.3 percent. Virginia's
real per capita income has exceeded that for both the nation and the southeast
region since the early 1980's, although the differentials have decreased since
1989. Virginia's nonagricultural employment figures mirror the national
economy although the recent recession has hit Virginia harder than the nation
as a whole with employment declining at an average annual rate of 1.6 percent
since 1990 in Virginia, compared to 0.7 percent nationally. With respect to
unemployment, Virginia's unemployment rate has consistently been below that of
the nation. For the decade of 1980 to 1990, the differential has been two
percentage points, although it decreased to below one percentage point in 1991
and the first six months of 1992.
 
Employment trends in Virginia have varied from sector to sector and from
region to region. For example, manufacturing and trade sectors in 1980 each
employed more workers than the service sector. Now the service sector is the
largest employer in Virginia and mining and manufacturing are now at lower
levels than in 1980. Highest rates of unemployment are concentrated in
southwest Virginia where mining jobs have been lost and the lowest
unemployment rates are seen in Northern Virginia where much federally related
employment is concentrated. Not surprisingly, there is great overlap between
areas of lowest unemployment and those of highest per capita income. Economic
recovery from the recent recession is expected to be long and slow in
Virginia, although in the long term, a growing and more diversified export
sector holds promise that should mitigate current concerns.
 
The Commonwealth of Virginia has historically operated on a fiscally
conservative basis and is required by its Constitution to have a balanced
biennial budget. At the end of the June 30, 1992, fiscal year, the General
Fund had an ending fund balance computed on a budgetary cash basis of $195.2
million, of which $15 million was in required reserve; $142.3 million thereof
was designated for expenditure during the next fiscal year, leaving an
undesignated, unreserved fund balance of $52.8 million, the first such
undesignated fund balance since 1988. Computed on a modified accrual basis in
accordance with generally accepted accounting principles, the General Fund
balance at the end of the fiscal year ended June 30, 1992, was minus $121.8
million, compared with a General Fund balance at the end of the fiscal year
ended June 30, 1991, of minus $265.1 million. Contributing to the reduction
were $256.4 million in deferred credits, representing estimated tax refunds
associated with income taxes withheld for the period January through June,
1992, and an accrual for estimated medicaid claims of $155.8 million.
 
As of June 30, 1992, total debt of the Commonwealth aggregated $7.3 billion.
Of that amount, $1.5 billion was tax-supported. Outstanding general obligation
debt backed by the full faith and credit of the Commonwealth was $582.7
million at June 30, 1992. Of that amount, $544.4 million was also secured by
revenue producing capital projects. Debt service on the balance equaled 0.2%
of total General Fund expenditures in fiscal year 1992.
 
The Virginia Constitution contains limits on the amount of general obligation
bonds which the Commonwealth can issue. These limits are substantially in
excess of current levels of outstanding bonds, and at June 30, 1992 would
permit an additional total of approximately $5.00 billion of bonds secured by
revenue-producing projects and approximately $5.50 billion of unsecured
general obligation bonds, with not more
26
 
<PAGE>
than approximately $1.39 billion of the latter to be issued in any four-year
period. Bonds which are not secured by revenue-producing projects must be
approved in a state-wide election.
 
In November of 1992 the Constitution of Virginia was amended to establish a
permanent Revenue Stabilization Fund. This Fund will go into effect in the
1994-96 biennium. In anticipation of the first required deposit ($40.5
million) to the fund, the Governor included, and the General Assembly
approved, a $30.0 million down payment.
 
The current biennium started on July 1, 1992 and will end on June 30, 1994.
The amended biennial budget appropriated a total of $29,090.6 million:
$6,416.0 million in general funds and $7,907.1 million in nongeneral funds in
fiscal 1993, and $6,852.1 million in general funds and $7,915.3 million in
nongeneral funds in fiscal 1994.
 
The amended Appropriations Act assumed that general fund revenues would
increase by 7.1 percent in fiscal 1993 and 6.0 percent in fiscal 1994.
Currently, year-to-date general fund growth for the 11 months of fiscal 1993
is 9.7 percent. When general fund revenues are adjusted for one-time corporate
payments, the year-to-date growth declines to 7.9 percent.
 
The Commonwealth of Virginia maintains ratings of AAA by Standard & Poor's and
Aaa by Moody's on its general obligation indebtedness, reflecting in part its
sound fiscal management, diversified economic base and low debt ratios. There
can be no assurance that these conditions will continue. Nor are these same
conditions necessarily applicable to securities which are not general
obligations of the Commonwealth. Securities issued by specific municipalities,
governmental authorities or similar issuers may be subject to economic risks
or uncertainties peculiar to the issuers of such securities or the sources
from which they are to be paid.
 
VIRGINIA TAX STATUS
 
In the opinion of Chapman and Cutler, special counsel to the Trust for
Virginia tax matters, under existing law as of the date of this prospectus and
based upon the assumptions set forth above:
 
     (1) The Virginia Trust is not an association taxable as a corporation for
     purposes of the Virginia Income Tax and each Unitholder of the Trust will
     be treated as the owner of a pro rata portion of the assets held by the
     Trust and the income of such portion of the Virginia Trust will be
     treated as income of the Unitholder for purposes of the Virginia Income
     Tax.
 
     (2) Income on the Bonds which is exempt from Virginia Income Tax when
     received by the Virginia Trust, and which would be exempt from Virginia
     Income Tax if received directly by a Unitholder, will retain its status
     as exempt from such tax when received by the Trust and distributed to
     such Unitholder.
 
     (3) Each Unitholder will recognize gain or loss for purposes of the
     Virginia Income Tax if the Trustee disposes of a bond (whether by
     redemption, sale or otherwise) or if the Unitholder redeems or sells
     Units of the Trust to the extent that such a transaction results in a
     recognized gain or loss to such Unitholder for federal income tax
     purposes, except as described in this paragraph. Virginia has by law
     provided that all income from certain tax-exempt obligations issued under
     the laws of Virginia, including any profits made from the sale of such
     Bonds, shall be exempt from all taxation by Virginia. Although we express
     no opinion, the Virginia Department of Taxation has indicated that the
     gain on the sale of such tax-exempt obligations, recognized for federal
     income tax purposes, would not be subject to Virginia income taxation.
     Accordingly, any such gain relating to the disposition of any Bond that
     would not be subject to Virginia Income Tax if the Bond was held directly
     by a Unitholder will retain its tax-exempt status for purposes of the
     Virginia Income Tax when the Bond is disposed of by the Virginia Trust or
                                                                            27
 
<PAGE>
     when the Unitholder is deemed to have disposed of his pro rata portion of
     such Bond upon the disposition of his Unit, provided that such gain can
     be determined with reasonable certainty and substantiated.
 
     (4) The Virginia Income Tax does not permit a deduction of interest paid
     on indebtedness incurred or continued to purchase or carry Units in the
     Virginia Trust to the extent that interest income related to the
     ownership of Units is exempt from the Virginia Income Tax.
 
In the case of Unitholders subject to the Virginia Bank Franchise Tax, the
income derived by such a Unitholder from his pro rata portion of the Bonds
held by the Virginia Trust may affect the determination of such Unitholder's
Bank Franchise Tax. Prospective investors subject to the Virginia Bank
Franchise Tax should consult their tax advisors.
 
For a discussion of Federal tax matters relating to distributions from the
Trust Fund, see "Federal Tax Status."
 
FEDERAL TAX STATUS
 
All Municipal Bonds deposited in the Trust Funds will be accompanied by copies
of opinions of bond counsel to the issuers thereof, given at the time of
original delivery of the Municipal Bonds, to the effect that the interest
thereon is excludable from gross income for Federal income tax purposes. In
connection with the offering of Units of the Trust Funds, neither the Sponsor,
the Trustee, the auditors nor their respective counsel have made any review of
the proceedings relating to the issuance of the Municipal Bonds or the basis
for such opinions. Gain realized on the sale or redemption of the Municipal
Bonds by the Trustee or of a Unit by a Unitholder is, however, includable in
gross income for Federal income tax purposes. Such gain does not include any
amounts received in respect of accrued interest or earned original issue
discount. It should be noted that under recently enacted legislation described
below that subjects accretion of market discount on tax-exempt bonds to
taxation as ordinary income, gain realized on the sale or redemption of
Municipal Bonds by the Trustee or of Units by a Unitholder that would have
been treated as capital gain under prior law is treated as ordinary income to
the extent it is attributable to accretion of market discount. Market discount
can arise based on the price a Trust Fund pays for Municipal Bonds or the
price a Unitholder pays for his or her Units. In addition, bond counsel to the
issuing authorities rendered opinions as to the exemption of interest on such
Bonds, when held by residents of the state in which the issuers of such bonds
are located, from state income taxes and, where applicable, local income
taxes.
 
In the opinion of Chapman and Cutler, counsel for the Sponsor, under existing
law:
 
     Each Trust Fund is not an association taxable as a corporation for
     Federal income tax purposes and interest and accrued original issue
     discount on Bonds which is excludable from gross income under the
     Internal Revenue Code of 1986 (the "Code") will retain its status when
     distributed to Unitholders, except to the extent such interest is subject
     to the alternative minimum tax, an additional tax on branches of foreign
     corporations and the environmental tax (the "Superfund Tax"), as noted
     below.
 
     Each Unitholder is considered to be the owner of a pro rata portion of
     each asset of the respective Trust Fund in the proportion that the number
     of Units of such Trust Fund held by him bears to the total number of
     Units outstanding of such Trust Fund under subpart E, subchapter J of
     chapter 1 of the Code and will have a taxable event when such Trust Fund
     disposes of a Bond, or when the Unitholder redeems or sells his Units.
     Unitholders must reduce the tax basis of their Units for their share of
     accrued interest received by a Trust Fund, if any, on Bonds delivered
     after the Unitholders pay for their Units to the extent that such
     interest accrued on such Bonds during the period from the Unitholder's
     settlement date to the date such Bonds are delivered to a Trust Fund and,
     consequently, such Unitholders may have an increase in taxable gain or
     reduction in capital loss upon the disposition of such Units. Gain or
     loss upon the sale or redemption of Units is measured by comparing the
     proceeds of such sale or redemption with the adjusted basis of the Units.
     If the Trustee disposes of Bonds (whether by sale,
28
 
<PAGE>
     payment on maturity, redemption or otherwise), gain or loss is recognized
     to the Unitholder. The amount of any such gain or loss is measured by
     comparing the Unitholder's pro rata share of the total proceeds from such
     disposition with the Unitholder's basis for his or her fractional
     interest in the asset disposed of. In the case of a Unitholder who
     purchases Units, such basis (before adjustment for earned original issue
     discount and amortized bond premium, if any) is determined by
     apportioning the cost of the Units among each of the Trust Fund's assets
     ratably according to value as of the date of acquisition of the Units.
     The tax cost reduction requirements of the Code relating to amortization
     of bond premium may, under some circumstances, result in the Unitholder
     realizing a taxable gain when his Units are sold or redeemed for an
     amount equal to his original cost.
 
     Any proceeds paid under individual policies obtained by issuers of Bonds
     which represent maturing interest on defaulted obligations held by the
     Trustee will be excludable from Federal gross income if, and to the same
     extent as, such interest would have been so excludable if paid in the
     normal course by the issuer of the defaulted obligations.
 
Sections 1288 and 1272 of the Internal Revenue Code of 1986 (the "Code")
provide a complex set of rules governing the accrual of original issue
discount. These rules provide that original issue discount accrues either on
the basis of a constant compound interest rate or ratably over the term of the
Municipal Bond, depending on the date the Municipal Bond was issued. In
addition, special rules apply if the purchase price of a Municipal Bond
exceeds the original issue price plus the amount of original issue discount
which would have previously accrued based upon its issue price (its "adjusted
issue price"). The application of these rules will also vary depending on the
value of the Municipal Bond on the date a Unitholder acquires his Units, and
the price the Unitholder pays for his Units. Investors with questions
regarding these Code sections should consult with their tax advisers.
 
The Revenue Reconciliation Act of 1993 (the "Tax Act") subjects tax-exempt
bonds to the market discount rules of the Code effective for bonds purchased
after April 30, 1993. In general, market discount is the amount (if any) by
which the stated redemption price at maturity exceeds an investor's purchase
price (except to the extent that such difference, if any, is attributable to
original issue discount not yet accrued). Under the Tax Act, accretion of
market discount is taxable as ordinary income; under prior law the accretion
had been treated as capital gain. Market discount that accretes while a Trust
Fund holds a Municipal Bond would be recognized as ordinary income by the
Unitholders when principal payments are received on the Municipal Bond, upon
sale or at redemption (including early redemption), or upon the sale or
redemption of his or her Units, unless a Unitholder elects to include market
discount in taxable income as it accrues. The market discount rules are
complex and Unitholders should consult their tax advisers regarding these
rules and their application.
 
In the case of certain corporations, the alternative minimum tax and the
Superfund Tax depend upon the corporation's alternative minimum taxable
income, which is the corporation's taxable income with certain adjustments.
One of the adjustment items used in computing the alternative minimum taxable
income and the Superfund Tax of a corporation (other than an S Corporation,
Regulated Investment Company, Real Estate Investment Trust, or REMIC) is an
amount equal to 75% of the excess of such corporation's "adjusted current
earnings" over an amount equal to its alternative minimum taxable income
(before such adjustment item and the alternative tax net operating loss
deduction). "Adjusted current earnings" includes all tax-exempt interest,
including interest on all of the Bonds in a Trust Fund. Unitholders are urged
to consult their tax advisers with respect to the particular tax consequences
to them including the corporate alternative minimum tax, the Superfund Tax and
the branch profits tax imposed by Section 884 of the Code.
 
Counsel for the Sponsor has also advised that under Section 265 of the Code,
interest on indebtedness incurred or continued to purchase or carry Units of a
Trust Fund is not deductible for Federal income tax purposes. The Internal
Revenue Service has taken the position that such indebtedness need not be
directly traceable to the purchase or carrying of Units (however, these rules
generally do not apply to interest paid on indebtedness incurred to purchase
or improve a personal residence). Also, under Section 265 of the Code, certain
financial institutions that acquire Units would generally not be able to
deduct any of the interest expense attributable to ownership of such Units.
Investors with questions regarding these issues should consult with their tax
advisers.
 
                                                                            29
 
<PAGE>
In the case of certain Municipal Bonds in the Trust Funds, the opinions of
bond counsel indicate that interest on such securities received by a
"substantial user" of the facilities being financed with the proceeds of these
securities or persons related thereto, for periods while such securities are
held by such a user or related person, will not be excludable from Federal
gross income, although interest on such securities received by others would be
excludable from Federal gross income. "Substantial user" and "related person"
are defined under U.S. Treasury Regulations. Any person who believes that he
or she may be a "substantial user" or a "related person" as so defined should
contact his or her tax adviser.
 
Under existing law, the Trust Funds are not associations taxable as a
corporation and the income of the Trust Funds will be treated as the income of
the Unitholders under the income tax laws of the State of Missouri.
 
All statements of law in the Prospectus concerning exclusion from gross income
for Federal, state or other tax purposes are the opinions of counsel and are
to be so construed.
 
At the respective times of issuance of the Bonds, opinions relating to the
validity thereof and to the exclusion of interest thereon from Federal gross
income are rendered by bond counsel to the respective issuing authorities.
Neither the Sponsor nor Chapman and Cutler has made any special review for the
Trust Funds of the proceedings relating to the issuance of the Bonds or of the
basis for such opinions.
 
For taxpayers other than corporations, net capital gains are presently subject
to a maximum marginal stated tax rate of 28 percent. 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. Under the Code, taxpayers must disclose to the
Internal Revenue Service the amount of tax-exempt interest earned during the
year.
 
Section 86 of the Code, in general, provides that fifty percent of Social
Security benefits are includible in gross income to the extent that the sum of
"modified adjusted gross income" plus fifty percent of the Social Security
benefits received exceeds a "base amount". The base amount is $25,000 for
unmarried taxpayers, $32,000 for married taxpayers filing a joint return and
zero for married taxpayers who do not live apart at all times during the
taxable year and who file separate returns. Modified adjusted gross income is
adjusted gross income determined without regard to certain otherwise allowable
deductions and exclusions from gross income and by including tax-exempt
interest. To the extent that Social Security benefits are includible in gross
income, they will be treated as any other item of gross income.
 
In addition, under the Tax Act, for taxable years beginning after December 31,
1993, up to 85 percent of Social Security benefits are includible in gross
income to the extent that the sum of "modified adjusted gross income" plus
fifty percent of Social Security benefits received exceeds an "adjusted base
amount." The adjusted base amount is $34,000 for unmarried taxpayers, $44,000
for married taxpayers filing a joint return and zero for married taxpayers who
do not live apart at all times during the taxable year and who file separate
returns.
 
Although tax-exempt interest is included in modified adjusted gross income
solely for the purpose of determining what portion, if any, of Social Security
benefits will be included in gross income, no tax-exempt interest, including
that received from the Trust Fund, will be subject to tax. A taxpayer whose
adjusted gross income already exceeds the base amount must include fifty
percent of his Social Security benefits in gross income whether or not he
receives any tax-exempt interest. A taxpayer whose modified adjusted gross
income (after inclusion of tax-exempt interest) does not exceed the base
amount need not include any Social Security benefits in gross income.
 
For a discussion of the state tax status of income earned on Units of a state
trust, see the discussion of tax status for the applicable trust. Except as
noted therein, the exemption of interest on state and local obligations for
Federal income tax purposes discussed above does not necessarily result in
exemption under the income or other tax laws of any state or city. The laws of
the several states vary with respect to the taxation of such obligations.
 
30
 
<PAGE>
ESTIMATED CASHFLOWS TO UNITHOLDERS
 
The tables below set forth the estimated monthly distributions of interest,
principal and rebates of accrued interest to carry to Unitholders on a per 100
Units basis. The tables assume no changes in expenses, no changes in the
current interest rates, no exchanges, redemptions, sales or prepayments of the
underlying Securities prior to maturity or expected retirement date and the
receipt of principal upon maturity or expected retirement date. To the extent
the foregoing assumptions change actual distributions will vary.
 
                                                                            31
 
<PAGE>
DESCRIPTION OF MUNICIPAL BOND RATINGS*
 
STANDARD & POOR'S CORPORATION.--A brief description of the applicable Standard
& Poor's Corporation rating symbols and their meanings follow:
 
A Standard & Poor's corporate or municipal bond rating is a current assessment
of the creditworthiness of an obligor with respect to a specific debt
obligation. This assessment may take into consideration obligors such as
guarantors, insurers, or lessees.
 
The bond rating is not a recommendation to purchase, sell or hold a security,
inasmuch as it does not comment as to market price or suitability for a
particular investor.
 
The ratings are based on current information furnished by the issuer and
obtained by Standard & Poor's from other sources it considers reliable.
Standard & Poor's does not perform an audit in connection with any rating and
may, on occasion, rely on unaudited financial information. The ratings may be
changed, suspended, or withdrawn as a result of changes in, or unavailability
of, such information, or for other circumstances.
 
The ratings are based, in varying degrees, on the following considerations:
 
I. Likelihood of default--capacity and willingness of the obligor as to the
timely payment of interest and repayment of principal in accordance with the
terms of the obligation;
 
II. Nature of and provisions of the obligation;
 
III. Protection afforded by, and relative position of, the obligation in the
event of bankruptcy, reorganization or other arrangement, under the laws of
bankruptcy and other laws affecting creditors' rights.
 
AAA--Bonds rated AAA have the highest rating assigned by Standard and Poor's
to a debt obligation. Capacity to pay interest and repay principal is
extremely strong.
 
AA--Bonds rated AA have a very strong capacity to pay interest and repay
principal and differ from the highest rated issues only in small degree.
 
A--Bonds rated A have a strong capacity to pay interest and repay principal
although they are somewhat more susceptible to the adverse effects of changes
in circumstances and economic conditions than bonds in higher rated
categories.
 
BBB--Bonds rated BBB are regarded as having an adequate capacity to pay
interest and repay principal. Whereas they normally exhibit adequate
protection parameters, adverse economic conditions or changing circumstances
are more likely to lead to a weakened capacity to pay interest and repay
principal for bonds in this category than for bonds in higher rated
categories.
 
Plus (+) or Minus (-): The ratings from "AA" to "A" may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.
 
Provisional Ratings: The letter "p" indicates the rating is provisional. A
provisional rating assumes the successful completion of the project being
financed by the bonds being rated and indicates that payment of debt service
requirements is largely or entirely dependent upon the successful and timely
completion of the project. This rating, however, while addressing credit
quality subsequent to completion of the project, makes no comment on the
likelihood of, or the risk of default upon failure of, such completion. The
investor should exercise his own judgment with respect to such likelihood and
risk.
 
- ---------------------------
 
* As described by the rating company itself.
 
                                     A-1
 
<PAGE>
MOODY'S INVESTORS SERVICE, INC.--A brief description of the applicable Moody's
Investors Service, Inc. rating symbols and their meanings follow:
 
Aaa--Bonds which are rated Aaa are judged to be of the best quality. They
carry the smallest degree of investment risk and are generally referred to as
"gilt edge." Interest payments are protected by a large or by an exceptionally
stable margin and principal is secure. While the various protective elements
are likely to change, such changes as can be visualized are most unlikely to
impair the fundamentally strong position of such issues. Their safety is so
absolute that with the occasional exception of oversupply in a few specific
instances, characteristically, their market value is affected solely by money
market fluctuations.
 
Aa--Bonds which are rated Aa are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known
as high grade bonds. They are rated lower than the best bonds because margins
of protection may not be as large as in Aaa securities or fluctuations of
protective elements may be of greater amplitude or there may be other elements
present which make the long term risks appear somewhat larger than in Aaa
securities. Their market value is virtually immune to all but money market
influences, with the occasional exception of oversupply in a few specific
instances.
 
A--Bonds which are rated A possess many favorable investment attributes and
are to be considered as upper medium grade obligations. Factors giving
security to principal and interest are considered adequate, but elements may
be present which suggest a susceptibility to impairment sometime in the
future. The market value of A-rated bonds may be influenced to some degree by
economic performance during a sustained period of depressed business
conditions, but, during periods of normalcy, A-rated bonds frequently move in
parallel with Aaa and Aa obligations, with the occasional exception of
oversupply in a few specific instances.
 
A1--Bonds which are rated A1 offer the maximum in security within their
quality group, can be bought for possible upgrading in quality, and
additionally, afford the investor an opportunity to gauge more precisely the
relative attractiveness of offerings in the marketplace.
 
Baa--Bonds which are rated Baa are considered as lower medium grade
obligations, i.e., they are neither highly protected nor poorly secured.
Interest payments and principal security appear adequate for the present but
certain protective elements may be lacking or may be characteristically
unreliable over any great length of time. Such bonds lack outstanding
investment characteristics and, in fact, have speculative characteristics as
well. The market value of Baa-rated bonds is more sensitive to changes in
economic circumstances and, aside from occasional speculative factors applying
to some bonds of this class, Baa market valuations move in parallel with Aaa,
Aa and A obligations during periods of economic normalcy, except in instances
of oversupply.
 
Conditional Ratings: Bonds rated "Con(-)" are ones for which the security
depends upon the completion of some act or the fulfillment of some condition.
These are bonds secured by (a) earnings of projects under construction, (b)
earnings of projects unseasoned in operation experience, (c) rentals which
begin when facilities are completed, or (d) payments to which some other
limiting condition attaches. Parenthetical rating denotes probable credit
stature upon completion of construction or elimination of basis of condition.
 
Note: Moody's applies numerical modifiers, 1, 2, and 3 in each generic rating
classification from Aa through B in certain areas of its bond rating system.
The modifier 1 indicates that the security ranks in the higher end of its
generic rating category; the modifier 2 indicates a mid-range ranking; and the
modifier 3 indicates that the issue ranks in the lower end of its generic
rating category.
 
                                     A-2
 
<PAGE>
PORTFOLIOS
 
The Trust Funds may be an appropriate investment vehicle for investors who
desire to participate in a portfolio of tax-exempt fixed income securities
with greater diversification than they might be able to acquire individually.
In addition, Municipal Bonds of the type deposited in the Trust Fund are often
not available in small amounts.
 
The selection of Municipal Bonds for each Trust Fund was based largely upon
the experience and judgment of the Sponsor. In making such selections the
Sponsor considered the following factors: (a) Standard & Poor's or Moody's
ratings of the Municipal Bonds; (b) the price of the Municipal Bonds relative
to other issues of similar quality and maturity; (c) the diversification of
the Municipal Bonds as to purpose of issue; (d) the income to the Unitholders
of the Trust; (e) in the case of insured Trust Funds whether such Bonds were
insured or the availability and cost of insurance for the scheduled payment of
principal and interest on the Municipal Bonds; and (f) the dates of maturity
of the Bonds.
 
All of the Municipal Bonds in each Trust Fund's portfolio are rated in the
category "BBB" or better (including provisional or conditional ratings) by
Standard & Poor's or "Baa" or better by Moody's. See "Description of Municipal
Bond Ratings" and "Portfolios."
 
All Municipal Bonds deposited in the Trust Funds on the Date of Deposit were
represented by purchase contracts assigned to the Trustee together with cash,
cash equivalents or irrevocable letters of credit issued by a major commercial
bank in the amounts necessary to complete the purchase thereof.
 
Bonds in certain of the Trust Funds may have been purchased on a "when, as and
if issued" or delayed delivery basis with delivery expected to take place
after the First Settlement Date. See "Notes to Portfolio." Accordingly, the
delivery of such Bonds may be delayed or may not occur. Interest on these
Municipal Bonds begins accruing to the benefit of Unitholders on their
respective dates of delivery. To the extent any Municipal Bonds are actually
delivered to a Trust Fund after their respective expected dates of delivery,
Unitholders who purchase Units in such Trust Fund prior to the date such
"when, as and if issued" or "delayed delivery" Municipal Bonds are actually
delivered to the Trustee would, to the extent such income is not offset by a
reduction in the Trustee's fee (or, to the extent necessary, other expenses),
be required to reduce their tax basis in their Units of such Trust Fund since
the interest accruing on such Bonds during the interval between their purchase
of Units and the actual delivery of such Bonds would, for tax purposes, be
considered a non-taxable return of principal rather than as tax-exempt
interest. The result of such adjustment, if necesssary, would be, during the
first year only, that the Estimated Long-Term Returns may be, and the
Estimated Current Returns would be, slightly lower than those shown herein,
assuming the Trust Fund portfolios and estimated annual expenses do not vary.
See footnote (3) to "Essential Information." Holders of Units will be "at
risk" with respect to these Bonds (i.e., may derive either gain or loss from
fluctuations in the evaluation of such Bonds) from the date they commit for
Units.
 
The Sponsor and the Trustee shall not be liable in any way for any default,
failure or defect in any Municipal Bond. In the event of a notice that any
Bonds, including "when, as and if issued" Bonds that have been purchased for
the Trust under contracts, will not be delivered ("Failed Bonds"), the Sponsor
is authorized under the Trust Agreement to direct the Trustee to acquire other
bonds ("Replacement Bonds").
 
The Replacement Bonds must be purchased within 20 days after delivery of the
notice that a contract to deliver a Municipal Bond will not be honored and the
purchase price may not exceed the amount of funds reserved for the purchase of
the Failed Bonds. The Replacement Bonds (i) must be tax-exempt bonds issued by
the appropriate state or counties, municipalities, authorities or political
subdivisions thereof, (ii) must have a fixed maturity date of at least three
years if the Bonds are to be deposited in a trust other than a long-term
                                     A-3
 
<PAGE>
Trust or at least 10 years if the Bonds are to be deposited in a long-term
Trust, (iii) must be purchased at a price that results in a yield to maturity
and a current return at least equal to that of the Failed Bonds as of the Date
of Deposit, (iv) shall not be "when, as and if issued" bonds, (v) must satisfy
the rating criteria for Bonds originally included in such Trust and (vi) in
the case of Insured Trust Funds must be insured. Whenever a Replacement Bond
is acquired for a Trust Fund, the Trustee shall, within five days thereafter,
notify all Unitholders of the Trust Fund of the acquisition of the Replacement
Bond. Once all of the Bonds in a Trust Fund are acquired, the Trustee will
have no power to vary the investments of the Trust Fund, i.e., the Trustee
will have no managerial power to take advantage of market variations to
improve a Unitholder's investment.
 
If the right of limited substitution described in the preceding paragraphs is
not utilized to acquire Replacement Bonds in the event of a failed contract,
the Sponsor will refund the sales charge attributable to such Failed Bonds to
all Unitholders of the Trust Fund and the Trustee will distribute the
principal, Purchased Interest and Daily Accrued Interest attributable to such
Failed Bonds not more than 30 days after the date on which the Trustee would
have been required to purchase a Replacement Bond. 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 at a yield equal to or
in excess of the yield which such proceeds would have earned for Unitholders
of such Trust Fund.
 
Whether or not a Replacement Bond is acquired, an amount equal to the accrued
interest (at the coupon rate of the Failed Bonds) will be paid to Unitholders
of the Trust Fund to the date the Sponsor is notified of the failure if the
Sponsor determines not to purchase a Replacement Bond or to the date of
substitution if a Replacement Bond is purchased. All such interest paid to
Unitholders which accrued after the date of settlement for a purchase of Units
will be paid by the Sponsor. In the event a Replacement Bond could not be
acquired by the Trust Fund, the net annual interest income per Unit for such
Trust Fund would be reduced and the Estimated Current Return and Estimated
Long-Term Return might be lowered.
 
Subsequent to the Date of Deposit, a Municipal Bond may cease to be rated or
its rating may be reduced below the minimum required as of the Date of
Deposit. Neither event requires the elimination of such investment from a
Trust Fund, but may be considered in the Sponsor's determination to direct the
Trustee to dispose of such investment. See "Investment Supervision."
 
The Sponsor may not alter the portfolio of a Trust Fund except upon the
happening of certain extraordinary circumstances. See "Investment
Supervision." Municipal Bonds in such Trust Fund are subject to optional call
or mandatory redemption pursuant to sinking fund provisions, in each case
prior to their stated maturity. A bond subject to optional call is one which
is subject to redemption or refunding prior to maturity at the option of the
issuer, often at a premium over par. A refunding is a method by which a bond
issue is redeemed, at or before maturity, by the proceeds of a new bond issue.
A bond subject to sinking fund redemption is one which is subject to partial
call from time to time at par with proceeds from a fund accumulated for the
scheduled retirement of a portion of an issue prior to maturity. Special or
extraordinary redemption provisions may provide for redemption at par of all
or a portion of an issue upon the occurrence of certain circumstances, which
may be prior to the optional call dates shown in "The Trust Funds--
Portfolios." Redemption pursuant to optional call provisions is more likely to
occur, and redemption pursuant to special or extraordinary redemption
provisions may occur, when the Bonds have an offering side evaluation which
represents a premium over par, that is, when they are able to be refinanced at
a lower cost. The proceeds from any such call or redemption pursuant to
sinking fund provisions, as well as proceeds from the sale of Municipal Bonds
and from Municipal Bonds which mature in accordance with their terms from a
Trust Fund, unless utilized to pay for Units tendered for redemption, will be
distributed to Unitholders of such Trust Fund and will not be used to purchase
additional Municipal Bonds for the Trust Fund. Accordingly, any such call,
redemption, sale or maturity will reduce the size and diversity of the Trust
Fund and the net annual
                                     A-4
 
<PAGE>
interest income of the Trust Fund and may reduce the Estimated Current Return
and the Estimated Long-Term Return. See "Interest, Estimated Long-Term Return
and Estimated Current Return." The call, redemption, sale or maturity of
Municipal Bonds also may have tax consequences to a Unitholder. See "Federal
Tax Status." Information with respect to the call provisions and maturity
dates of the Municipal Bonds is contained in "The Trust Funds--Portfolios."
 
Insurance guaranteeing the scheduled payment of principal and interest on all
of the Municipal Bonds in an Insured Trust Fund has been obtained directly by
the issuer. See "Insurance on the Portfolios of the Insured Trust Funds" and
"The Trust Funds--Portfolios." The value of insurance obtained by the issuer
of a Municipal Bond is reflected and included in the market value of such
Bonds. See "Insurance on the Portfolios of the Insured Trust Funds."
 
Each Unit of a Trust Fund represents an undivided fractional interest in the
Municipal Bonds deposited therein, in the ratio shown under "Essential
Information." Units may be purchased and certificates, if requested, will be
issued in denominations of one Unit or any multiple or fraction thereof,
subject to the Trust's minimum investment requirement of one Unit. Fractions
of Units will be computed to three decimal points. To the extent that Units of
a Trust Fund are redeemed, the principal amount of Municipal Bonds in the
Trust Fund will be reduced and the undivided fractional interest represented
by each outstanding Unit of such Trust Fund will increase. See "Redemption."
 
GENERAL TRUST INFORMATION
 
None of the special counsel to the various Trust Funds has expressed any
opinion regarding the completeness or materiality of any matters contained in
this Prospectus other than the tax opinions set forth under "Federal Tax
Status."
 
Certain of the Bonds in the Trust Funds may be general obligations of a
governmental entity that are backed by the taxing power of such entity. All
other Bonds in the Trusts are revenue bonds payable from the income of a
specific project or authority and are not supported by the issuer's power to
levy taxes. General obligation bonds are secured by the issuer's pledge of its
faith, credit and taxing power for the payment of principal and interest.
Revenue bonds, on the other hand, are payable only from the revenues derived
from a particular facility or class of facilities or, in some cases, from the
proceeds of a special excise or other specific revenue source. There are, of
course, variations in the security of the different Bonds in the Trust Funds,
both within a particular classification and between classifications, depending
on numerous factors.
 
Certain of the Bonds in the Trust Funds may be obligations of issuers whose
revenues are derived from services provided by hospitals and other health care
facilities, including nursing homes. Ratings of bonds issued for health care
facilities are often based on feasibility studies that contain projections of
occupancy levels, revenues and expenses. A facility's gross receipts and net
income available for debt service will be affected by future events and
conditions including, among other things, demand for services and the ability
of the facility to provide the services required, physicians' confidence in
the facility, management's capabilities, economic developments in the service
area, competition, efforts by insurers and governmental agencies to limit
rates, legislation establishing state rate-setting agencies, expenses, the
cost and possible unavailability of malpractice insurance, the funding of
Medicare, Medicaid and other similar third party payor programs, and
government regulation. Federal legislation has been enacted which implements a
system of prospective Medicare reimbursement which may restrict the flow of
revenues to hospitals and other facilities which are reimbursed for services
provided under the Medicare program. Future legislation or changes in the
areas noted above, among other things, would affect all hospitals to varying
degrees and, accordingly, any adverse changes in these areas may affect the
ability of such issuers to make payments of
                                     A-5
 
<PAGE>
principal and interest on Municipal Bonds held in the portfolios of the Trust
Funds. Such adverse changes also may affect the ratings of the Municipal Bonds
held in the portfolios of the Trust Funds.
 
Certain of the Bonds in the Trust Funds may be single family mortgage revenue
bonds, which are issued for the purpose of acquiring from originating
financial institutions notes secured by mortgages on residences located within
the issuer's boundaries and owned by persons of low or moderate income.
Mortgage loans are generally partially or completely prepaid prior to their
final maturities as a result of events such as sale of the mortgaged premises,
default, condemnation or casualty loss. Because these Bonds are subject to
extraordinary mandatory redemption in whole or in part from such prepayments
of mortgage loans, a substantial portion of such Bonds will probably be
redeemed prior to their scheduled maturities or even prior to their ordinary
call dates. The redemption price of such issues may be more or less than the
offering price of such Bonds. Extraordinary mandatory redemption without
premium could also result from the failure of the originating financial
institutions to make mortgage loans in sufficient amounts within a specified
time period or, in some cases, from the sale by the Bond issuer of the
mortgage loans. Failure of the originating financial institutions to make
mortgage loans would be due principally to the interest rates on mortgage
loans funded from other sources becoming competitive with the interest rates
on the mortgage loans funded with the proceeds of the single family mortgage
revenue bonds. Additionally, unusually high rates of default on the underlying
mortgage loans may reduce revenues available for the payment of principal of
or interest on such mortgage revenue bonds. Single family mortgage revenue
bonds issued after December 31, 1980 were issued under Section 103A of the
Internal Revenue Code of 1954, which Section contains certain ongoing
requirements relating to the use of the proceeds of such Bonds in order for
the interest on such Bonds to retain its tax-exempt status. In each case, the
issuer of the Bonds has covenanted to comply with applicable ongoing
requirements and bond counsel to such issuer has issued an opinion that the
interest on the Bonds is exempt from Federal income tax under existing laws
and regulations. There can be no assurances that the ongoing requirements will
be met. The failure to meet these requirements could cause the interest on the
Bonds to become taxable, possibly retroactively from the date of issuance.
 
Certain of the Bonds in the Trust Funds may be obligations of issuers whose
revenues are primarily derived from mortgage loans to housing projects for low
to moderate income families. The ability of such issuers to make debt service
payments will be affected by events and conditions affecting financed
projects, including, among other things, the achievement and maintenance of
sufficient occupancy levels and adequate rental income, increases in taxes,
employment and income conditions prevailing in local labor markets, utility
costs and other operating expenses, the managerial ability of project
managers, changes in laws and governmental regulations, the appropriation of
subsidies and social and economic trends affecting the localities in which the
projects are located. The occupancy of housing projects may be adversely
affected by high rent levels and income limitations imposed under Federal and
state programs. Like single family mortgage revenue bonds, multi-family
mortgage revenue bonds are subject to redemption and call features, including
extraordinary mandatory redemption features, upon prepayment, sale or
non-origination of mortgage loans as well as upon the occurrence of other
events. Certain issuers of single or multi-family housing bonds have
considered various ways to redeem bonds they have issued prior to the stated
first redemption dates for such bonds. In connection with the housing Bonds
held by the Trust Funds, the Sponsor has not had any direct communications
with any of the issuers thereof, but at the Date of Deposit it is not aware
that any of the respective issuers of such Bonds are actively considering the
redemption of such Bonds prior to their respective stated initial call dates.
However, there can be no assurance that an issuer of a Bond in the Trusts will
not attempt to so redeem a Bond in the Trust Funds.
 
Certain of the Bonds in the Trust Funds may be obligations of issuers whose
revenues are derived from the sale of water and/or sewerage services. Water
and sewerage bonds are generally payable from user fees.
                                     A-6
 
<PAGE>
Problems faced by such issuers include the ability to obtain timely and
adequate rate increases, a decline in population resulting in decreased user
fees, the difficulty of financing large construction programs, the limitations
on operations and increased costs and delays attributable to environmental
considerations, the increasing difficulty of obtaining or discovering new
supplies of fresh water, the effect of conservation programs and the impact of
"no-growth" zoning ordinances. Issuers may have experienced these problems in
varying degrees.
 
Certain of the Bonds in the Trust Funds may be obligations of issuers whose
revenues are primarily derived from the sale of electric energy or natural
gas. Utilities are generally subject to extensive regulation by state utility
commissions which, among other things, establish the rates which may be
charged and the appropriate rate of return on an approved asset base. The
problems faced by such issuers include the difficulty in obtaining approval
for timely and adequate rate increases from the governing public utility
commission, the difficulty in financing large construction programs, the
limitations on operations and increased costs and delays attributable to
environmental considerations, increased competition, recent reductions in
estimates of future demand for electricity in certain areas of the country,
the difficulty of the capital market in absorbing utility debt, the difficulty
in obtaining fuel at reasonable prices and the effect of energy conservation.
Issuers may have experienced these problems in varying degrees. In addition,
Federal, state and municipal governmental authorities may from time to time
review existing and impose additional regulations governing the licensing,
construction and operation of nuclear power plants, which may adversely affect
the ability of the issuers of such Bonds to make payments of principal and/or
interest on such Bonds.
 
Certain of the Bonds in the Trust Funds may be industrial revenue bonds
("IRBs"), including pollution control revenue bonds, which are tax-exempt
securities issued by states, municipalities, public authorities or similar
entities to finance the cost of acquiring, constructing or improving various
industrial projects. These projects are usually operated by corporate
entities. Issuers are obligated only to pay amounts due on the IRBs to the
extent that funds are available from the unexpended proceeds of the IRBs or
receipts or revenues of the issuer under an arrangement between the issuer and
the corporate operator of a project. The arrangement may be in the form of a
lease, installment sale agreement, conditional sale agreement or loan
agreement, but in each case the payments to the issuer are designed to be
sufficient to meet the payments of amounts due on the IRBs. Regardless of the
structure, payment of IRBs is solely dependent upon the creditworthiness of
the corporate operator of the project or corporate guarantor. Corporate
operators or guarantors may be affected by many factors which may have an
adverse impact on the credit quality of the particular company or industry.
These include cyclicality of revenues and earnings, regulatory and
environmental restrictions, litigation resulting from accidents or
environmentally-caused illnesses, extensive competition and financial
deterioration resulting from leveraged buy-outs or takeovers. The IRBs in the
Trust Funds may be subject to special or extraordinary redemption provisions
which may provide for redemption at par or, with respect to original issue
discount bonds, at issue price plus the amount of original issue discount
accreted to the redemption date plus, if applicable, a premium. The Sponsor
cannot predict the causes or likelihood of the redemption of IRBs or other
Bonds in the Trust Funds prior to the stated maturity of such Bonds.
 
Certain of the Bonds in the Trust Funds may be obligations which are payable
from and secured by revenues derived from the ownership and operation of
facilities such as airports, bridges, turnpikes, port authorities, convention
centers and arenas. The major portion of an airport's gross operating income
is generally derived from fees received from signatory airlines pursuant to
use agreements which consist of annual payments for leases, occupancy of
certain terminal space and service fees. Airport operating income may
therefore be affected by the ability of the airlines to meet their obligations
under the use agreements. The air transport industry is experiencing
significant variations in earnings and traffic, due to increased competition,
excess
                                     A-7
 
<PAGE>
capacity, increased costs, deregulation, traffic constraints and other
factors, and several airlines are experiencing severe financial difficulties.
The Sponsor cannot predict what effect these industry conditions may have on
airport revenues which are dependent for payment on the financial condition of
the airlines and their usage of the particular airport facility. Similarly,
payment on Bonds related to other facilities is dependent on revenues from the
projects, such as user fees from ports, tolls on turnpikes and bridges and
rents from buildings. Therefore, payment may be adversely affected by
reduction in revenues due to such factors as increased cost of maintenance,
decreased use of a facility, lower cost of alternative modes of
transportation, scarcity of fuel and reduction or loss of rents.
 
Certain of the Bonds in the Trust Funds may be obligations of issuers which
are, or which govern the operation of, schools, colleges and universities and
whose revenues are derived mainly from ad valorem taxes, or for higher
education systems, from tuition, dormitory revenues, grants and endowments.
General problems relating to school bonds include litigation contesting the
state constitutionality of financing public education in part from ad valorem
taxes, thereby creating a disparity in educational funds available to schools
in wealthy areas and schools in poor areas. Litigation or legislation on this
issue may affect the sources of funds available for the payment of school
bonds in the Trusts. General problems relating to college and university
obligations would include the prospect of a declining percentage of the
population consisting of "college" age individuals, possible inability to
raise tuition and fees sufficiently to cover increased operating costs, the
uncertainty of continued receipt of Federal grants and state funding and new
government legislation or regulations which may adversely affect the revenues
or costs of such issuers. All of such issuers have been experiencing certain
of these problems in varying degrees.
 
Certain of the Bonds in the Trust Funds may be Urban Redevelopment Bonds
("URBs"). URBs have generally been issued under bond resolutions pursuant to
which the revenues and receipts payable under the arrangements with the
operator of a particular project have been assigned and pledged to purchasers.
In some cases, a mortgage on the underlying project may have been granted as
security for the URBs. Regardless of the structure, payment of the URBs is
solely dependent upon the creditworthiness of the operator of the project.
 
Certain of the Bonds in the Trust Funds may be lease revenue bonds whose
revenues are derived from lease payments made by a municipality or other
political subdivision which is leasing equipment or property for use in its
operation. The risks associated with owning Bonds of this nature include the
possibility that appropriation of funds for a particular project or equipment
may be discontinued. The Sponsor cannot predict the likelihood of
nonappropriation of funds for these types of lease revenue Bonds.
 
Certain of the Bonds in the Trust Funds may be sales and/or use tax revenue
bonds whose revenues are derived from the proceeds of a special sales or use
tax. Such taxes are generally subject to continuing Legislature approval.
Payments may be adversely affected by reduction of revenues due to decreased
use of a facility or decreased sales.
 
Certain of the Bonds in the Trust Funds may be "zero coupon" bonds, i.e., an
original issue discount bond that does not provide for the payment of current
interest. Zero coupon bonds are purchased at a deep discount because the buyer
receives only the right to receive a final payment at the maturity of the bond
and does not receive any periodic interest payments. The effect of owning deep
discount bonds which do not make current interest payments (such as the zero
coupon bonds) is that a fixed yield is earned not only on the original
investment but also, in effect, on all discount earned during the life of such
obligation. This implicit reinvestment of earnings at the same rate eliminates
the risk of being unable to reinvest the income on such obligation at a rate
as high as the implicit yield on the discount obligation, but at the same time
eliminates the holder's ability to reinvest at higher rates in the future. For
this reason, zero coupon bonds are subject to
                                     A-8
 
<PAGE>
substantially greater price fluctuations during periods of changing market
interest rates than are securities of comparable quality which pay interest
currently. For the Federal tax consequences of original issue discount bonds
such as the zero coupon bonds, see "Federal Tax Status."
 
Investors should be aware that many of the Bonds in the Trust Funds are
subject to continuing requirements such as the actual use of Bond proceeds or
manner of operation of the project financed from Bond proceeds that may affect
the exemption of interest on such Bonds from Federal income taxation. Although
at the time of issuance of each of the Bonds in the Trusts an opinion of bond
counsel was rendered as to the exemption of interest on such obligations from
Federal income taxation, there can be no assurance that the respective issuers
or other obligors on such obligations will fulfill the various continuing
requirements established upon issuance of the Bonds. A failure to comply with
such requirements may cause a determination that interest on such obligations
is subject to Federal income taxation, perhaps even retroactively from the
date of issuance of such Bonds, thereby reducing the value of the Bonds and
subjecting Unitholders to unanticipated tax liabilities.
 
Federal bankruptcy statutes relating to the adjustment of debts of political
subdivisions or authorities of states of the United States provide that, in
certain circumstances, such subdivisions or authorities may be authorized to
initiate bankruptcy proceedings without prior notice to or consent of
creditors, which proceedings could result in material and adverse modification
or alteration of the rights of holders of obligations issued by such
subdivisions or authorities.
 
Certain of the Bonds in the Trust Funds may represent "moral obligations" of a
governmental entity other than the issuer. In the event that the issuer of a
Municipal Bond defaults in the repayment thereof, the governmental entity
lawfully may, but is not obligated to, discharge the obligation of the issuer
to repay such Municipal Bond.
 
To the best of the Sponsor's knowledge, there is no litigation pending as of
the Date of Deposit in respect of any Municipal Bond which might reasonably be
expected to have a material adverse effect on the Trusts or any Trust Fund. At
any time after the Date of Deposit, litigation may be instituted on a variety
of grounds with respect to the Municipal Bonds. Although 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 any Trust
Fund, the Trust Funds receive copies of the opinions of bond counsel given at
the time of original delivery of each of the Municipal Bonds to the effect
that the Municipal Bonds have been validly issued and that the interest
thereon is exempt from Federal income taxes.
 
INSURANCE ON THE PORTFOLIOS OF THE INSURED TRUST FUNDS
 
All Municipal Bonds in the portfolios of the Insured Trust Funds are insured
as to the scheduled payment of interest and principal by the issuer from
Municipal Bond Investors Assurance Corporation or other insurers. See "The
Trust Funds--Portfolios" and the Notes thereto. The premium for any insurance
policy or policies obtained by an issuer of Municipal Bonds has been paid in
advance by such issuer and any such policy or policies are non-cancellable and
will remain in force so long as the Municipal Bonds so insured are outstanding
and the insurer and/or insurers thereof remain in business. Where Municipal
Bond insurance is obtained by the issuer directly from Municipal Bond
Investors Assurance Corporation or another insurer, no premiums for insurance
are paid by an Insured Trust Fund. If the provider of an original issuance
insurance policy is unable to meet its obligations under such policy or if the
rating assigned to the claims-paying ability of any such insurer deteriorates,
no other insurer has an obligation to insure any issue adversely affected by
either of the above described events.
 
                                     A-9
 
<PAGE>
The aforementioned insurance guarantees the scheduled payment of principal and
interest on all of the Municipal Bonds in an Insured Trust Fund. It does not
guarantee the market value of the Municipal Bonds or the value of the Units of
the Insured Trust Fund. Insurance obtained by the issuer of a Municipal Bond
is effective so long as the Bond is outstanding, whether or not held by an
Insured Trust Fund. Therefore, any such insurance may be considered to
represent an element of market value in regard to the Bonds thus insured, but
the exact effect, if any, of this insurance on such market value cannot be
predicted.
 
Financial Guaranty Insurance Company. Financial Guaranty is a wholly-owned
subsidiary of FGIC Corporation (the "Corporation"), a Delaware holding
company. The Corporation is a wholly-owned subsidiary of General Electric
Capital Corporation ("GECC"). Neither the Corporation nor GECC is obligated to
pay the debts or the claims against Financial Guaranty. Financial Guaranty is
domiciled in the State of New York and is subject to regulation by the State
of New York Insurance Department. As of June 30, 1993, the total capital and
surplus of Financial Guaranty was approximately $686,140,000. Copies of
Financial Guaranty's financial statements, prepared on the basis of statutory
accounting principles, and the Corporation's financial statements, prepared on
the basis of generally accepted accounting principles, may be obtained by
writing to Financial Guaranty at 115 Broadway, New York, New York 10006,
Attention: Communications Department (telephone number is (212) 312-3000) or
to the New York State Insurance Department at 160 West Broadway, 18th Floor,
New York, New York 10013, Attention: Property Companies Bureau (telephone
number (212) 621-0389).
 
In addition, Financial Guaranty Insurance Company is currently authorized to
write insurance in 49 states and the District of Columbia.
 
The information relating to Financial Guaranty contained above has been
furnished by such corporation. The financial information contained herein with
respect to such corporation is unaudited but appears in reports or other
materials filed with state insurance regulatory authorities and is subject to
audit and review by such authorities. No representation is made herein as to
the accuracy or adequacy of such information or as to the absence of material
adverse changes in such information subsequent to the date thereof but the
Sponsor is not aware that the information herein is inaccurate or incomplete.
 
AMBAC Indemnity Corporation. AMBAC Indemnity Corporation ("AMBAC") is a
Wisconsin-domiciled stock insurance company, regulated by the Office of the
Commissioner of Insurance of the State of Wisconsin, and licensed to do
business in 50 states, the District of Columbia and the Commonwealth of Puerto
Rico, with admitted assets (unaudited) of approximately $1,725,000,000 and
statutory capital (unaudited) of approximately $963,000,000 as of March 31,
1993. Statutory capital consists of AMBAC policyholders' surplus and statutory
contingency reserve. AMBAC is a wholly owned subsidiary of AMBAC Inc., a 100%
publicly-held company. Moody's Investors Service, Inc. and Standard & Poor's
Corporation have both assigned a AAA claims-paying ability rating to AMBAC.
Copies of AMBAC's financial statements prepared in accordance with statutory
accounting standards are available from AMBAC. The address of AMBAC's
administrative offices and its telephone number are One State Street Plaza,
17th Floor, New York, New York 10004 and (212) 668-0340. AMBAC has entered
into quota share reinsurance agreements under which a percentage of the
insurance underwritten pursuant to certain municipal bond insurance programs
of AMBAC has been and will be assumed by a number of foreign and domestic
unaffiliated reinsurers.
 
Municipal Bond Investors Assurance Corporation. Municipal Bond Investors
Assurance Corporation ("MBIA Corporation") is the principal operating
subsidiary of MBIA, Inc., a New York Stock Exchange listed company. MBIA, Inc.
is not obligated to pay the debts of or claims against MBIA Corporation. MBIA
Corporation, which commenced municipal bond insurance operations on January 5,
1987, is a limited liability corporation rather than a several liability
association. MBIA Corporation is domiciled in the State of
                                     A-10
 
<PAGE>
New York and licensed to do business in all 50 states, the District of
Columbia and the Commonwealth of Puerto Rico.
 
As of September 30, 1993, MBIA had admitted assets of $3.0 billion
(unaudited), total liabilities of $2.0 billion (unaudited), and total capital
and surplus of $951 million (unaudited) determined in accordance with
statutory accounting practices prescribed or permitted by insurance regulatory
authorities. Standard & Poor's Corporation has rated the claims paying ability
of MBIA "AAA". Copies of MBIA Corporation's financial statements prepared in
accordance with statutory accounting practices are available from MBIA
Corporation. The address of MBIA Corporation is 113 King Street, Armonk, New
York 10504.
 
Effective December 31, 1989, MBIA Inc. acquired Bond Investors Group, Inc. On
January 5, 1990, the Insurer acquired all of the outstanding stock of Bond
Investors Group, Inc., the parent of BIG, now known as MBIA Insurance Corp. of
Illinois. Through a reinsurance agreement, BIG has ceded all of its net
insured risks, as well as its unearned premium and contingency reserves, to
the Insurer and the Insurer has reinsured BIG's net outstanding exposure.
 
Moody's Investors Service rates all bond issues insured by MBIA "Aaa" and
short-term loans "MIG1," both designated to be of the highest quality.
Standard & Poor's Corporation rates all new issues insured by MBIA "AAA."
 
Financial Security Assurance. Financial Security Assurance ("Financial
Security" or "FSA") is a monoline insurance company incorporated on March 16,
1984 under the laws of the State of New York. The operations of Financial
Security commenced on July 25, 1985, and Financial Security received its New
York State insurance license on September 23, 1985. Financial Security and its
two wholly owned subsidiaries are licensed to engage in financial guaranty
insurance business in 47 states, the District of Columbia and Puerto Rico.
 
Financial Security and its subsidiaries are engaged exclusively in the
business of writing financial guaranty insurance, principally in respect of
asset-backed and other collateralized securities offered in domestic and
foreign markets. Financial Security and its subsidiaries also write financial
guaranty insurance in respect of municipal and other obligations and reinsure
financial guaranty insurance policies written by other leading insurance
companies. In general, financial guaranty insurance consists of the issuance
of a guaranty of scheduled payments of an issuer's securities, thereby
enhancing the credit rating of these securities, in consideration for payment
of a premium to the insurer.
 
Financial Security is approximately 91.6% owned by U S West, Inc. and 8.4%
owned by The Tokio Marine and Fire Insurance Co., Ltd. ("Tokio Marine"). U S
West, Inc. operates businesses involved in communications, data solutions,
marketing services and capital assets, including the provision of telephone
services in 14 states in the western and midwestern United States. Tokio
Marine is the largest property and casualty insurance company in Japan. No
shareholder of Financial Security is obligated to pay any debt of Financial
Security or any claim under any insurance policy issued by Financial Security
or to make any additional contribution to the capital of Financial Security.
 
As of March 31, 1993, the total policyholders' surplus and contingency
reserves and the total unearned premium reserve, respectively, of Financial
Security and its consolidated subsidiaries were, in accordance with statutory
accounting principles, approximately $479,110,000 (unaudited) and $222,078,000
(unaudited), and the total shareholders' equity and the unearned premium
reserve, respectively of Financial Security and its consolidated subsidiaries
were, in accordance with generally accepted accounting principles,
approximately $628,119,000 (unaudited) and $202,493,000 (unaudited).
 
                                     A-11
 
<PAGE>
Copies of Financial Security's financial statements may be obtained by writing
to Financial Security at 350 Park Avenue, New York, New York, 10022, Attention
Communications Department. Financial Security's telephone number is (212)
826-0100.
 
Pursuant to an intercompany agreement, liabilities on financial guaranty
insurance written by Financial Security or either of its subsidiaries are
reinsured among such companies at an agreed-upon percentage substantially
proportional to their respective capital, surplus and reserves, subject to
applicable statutory risk limitations. In addition, Financial Security
reinsures a portion of its liabilities under certain of its financial guaranty
insurance policies with unaffiliated reinsurers under various quota share
treaties and on a transaction-by-transaction basis. Such reinsurance is
utilized by Financial Security as a risk management device and to comply with
certain statutory and rating agency requirements; it does not alter or limit
Financial Security's obligations under any financial guaranty insurance
policy.
 
Financial Security's claims-paying ability is rated "Aaa" by Moody's Investors
Service, Inc., and "AAA" by Standard & Poor's Corporation, Nippon Investors
Service Inc., Duff & Phelps Inc. and Australian Ratings Pty. Ltd. Such ratings
reflect only the views of the respective rating agencies, are not
recommendations to buy, sell or hold securities and are subject to revision or
withdrawal at any time by such rating agencies.
 
Capital Guaranty Insurance Company. Capital Guaranty Insurance Company
("Capital Guaranty" or "CGIC") was incorporated in Maryland on June 25, 1986,
and is a wholly owned subsidiary of Capital Guaranty Corporation, a Maryland
insurance holding company.
 
Capital Guaranty Corporation is owned by the following investors:
Constellation Investments, Inc., an affiliate of Baltimore Gas and Electric;
Fleet/Norstar Financial Group, Inc.; Safeco Corporation; Sibag Finance
Corporation, an affiliate of Siemens A.G. and United States Fidelity and
Guaranty Company and management.
 
Capital Guaranty, headquartered in San Francisco, is an monoline financial
guaranty insurer engaged in the underwriting and development of financial
guaranty insurance. Capital Guaranty insures general obligation, tax supported
and revenue bonds structured as tax-exempt and taxable securities as well as
selectively insures taxable corporate/asset backed securities. Standard &
Poor's rates the claims paying ability of Capital Guaranty "AAA".
 
Capital Guaranty's insured portfolio currently includes over $9 billion in
total principal and interest insured. As of September 30, 1992, the total
policyholders' surplus of Capital Guaranty was $113,000,000 (unaudited), and
the total admitted assets were $220,000,000 (unaudited) as reported to the
Insurance Department of the State of Maryland. Financial statements for
Capital Guaranty Insurance Company, that have been prepared in accordance with
statutory insurance accounting standards, are available upon request. The
address of Capital Guaranty's headquarters is Steuart Tower, 22nd Floor, One
Market Plaza, San Francisco, CA 94105-1413 and the telephone number is (415)
995-8000.
 
Because the Municipal Bonds are insured as to the scheduled payment of
principal and interest and on the basis of the financial condition and the
method of operation of the insurance companies referred to above, Standard &
Poor's Corporation has assigned to the each of the Insured Trust Fund's Units
its "AAA" investment rating. These are the highest ratings assigned to
securities by such rating agencies. See "Description of Municipal Bond
Ratings." These ratings should not be construed as an approval of the offering
of the Units by Standard & Poor's Corporation or as a guarantee of the market
value of an Insured Trust Fund or the Units thereof. There is no guarantee
that the "AAA" investment rating will be maintained.
 
Bonds in an Insured Trust Fund for which insurance has been obtained by the
issuer (all of which were rated "AAA" by Standard & Poor's Corporation and/or
"Aaa" by Moody's Investors Service, Inc.) may or may
                                     A-12
 
<PAGE>
not have a higher yield than uninsured bonds rated "AAA" by Standard & Poor's
Corporation or "Aaa" by Moody's Investors Service, Inc. In selecting Municipal
Bonds for the portfolios of an Insured Trust Fund, the Sponsor has applied the
criteria hereinbefore described.
 
Chapman and Cutler, counsel for the Sponsor, has given an opinion to the
effect that the payment of insurance proceeds representing maturing interest
on defaulting municipal obligations paid by Financial Guaranty or another
insurer would be excludable from Federal gross income if, and to the same
extent as, such interest would have been so excludable if paid by the issuer
of the defaulted obligations. See "Federal Tax Status."
 
DISTRIBUTION REINVESTMENT
 
Each Unitholder of a Trust Fund may elect to have distributions of principal
(including capital gains, if any) or interest or both automatically invested
without charge in shares of any other mutual fund underwritten or advised by
Kemper Financial Services, Inc., an affiliate of the Sponsor, (the "Kemper
Funds") which are registered in the Unitholder's state of residence, other
than those Kemper Funds sold with a contingent deferred sales charge. Since
the portfolio securities and investment objectives of such Kemper Funds may
differ significantly from that of the Trust Funds, Unitholders should
carefully consider the consequences, including the fact that distributions
from such Kemper Funds may be taxable, before selecting such Kemper Funds for
reinvestment. Detailed information with respect to the investment objectives
and the management of the Funds is contained in their respective prospectuses,
which can be obtained from any appropriate Trust Fund Underwriter upon
request. An investor should read the prospectus of the reinvestment fund
selected prior to making the election to reinvest. Unitholders who desire to
have such distributions automatically reinvested should inform their broker at
the time of purchase or should file with the Program Agent referred to below a
written notice of election.
 
Unitholders who are receiving distributions in cash may elect to participate
in distribution reinvestment by filing with the Program Agent an election to
have such distributions reinvested without charge. Such election must be
received by the Program Agent at least ten days prior to the Record Date
applicable to any distribution in order to be in effect for such Record Date.
Any such election shall remain in effect until a subsequent notice is received
by the Program Agent. See "Unitholders--Distributions to Unitholders."
 
The Program Agent is Investors Fiduciary Trust Company. All inquiries
concerning participation in distribution reinvestment should be directed to
the Kemper Service Company, service agent for the Program Agent, at P.O. Box
419430, Kansas City, Missouri 64173-0216, telephone (800) 422-2848.
 
INTEREST, ESTIMATED LONG-TERM RETURN AND ESTIMATED CURRENT RETURN
 
As of the opening of business on the Date of Deposit, the Estimated Long-Term
Return and the Estimated Current Return, if applicable, for each Trust Fund
were as set forth in the "Essential Information" for each Trust. Estimated
Current Return is calculated by dividing the estimated net annual interest
income per Unit by the Public Offering Price. The estimated net annual
interest income per Unit will vary with changes in fees and expenses of the
Trustee, the Sponsor and the Evaluator and with the principal prepayment,
redemption, maturity, exchange or sale of the Bonds while the Public Offering
Price will vary with changes in the offering price of the underlying Bonds;
therefore, there is no assurance that the present Estimated Current Return
will be realized in the future. Estimated Long-Term Return is calculated using
a formula which (1) takes into consideration, and determines and factors in
the relative weightings of, the market values, yields (which takes into
account the amortization of premiums and the accretion of discounts) and
estimated retirements of all of the Bonds in the Trust and (2) takes into
account the expenses and sales charge associated with each
                                     A-13
 
<PAGE>
Trust Unit. Since the market values and estimated retirements of the Bonds and
the expenses of the Trust will change, there is no assurance that the present
Estimated Long-Term Return will be realized in the future. Estimated Current
Return and Estimated Long-Term Return are expected to differ because the
calculation of Estimated Long-Term Return reflects the estimated date and
amount of principal returned while Estimated Current Return calculations
include only net annual interest income and Public Offering Price.
 
In order to acquire certain of the Municipal Bonds contracted for by a Trust
Fund, it may be necessary for the Sponsor or Trustee to pay on the dates for
delivery of such Municipal Bonds amounts covering accrued interest on such
Municipal Bonds which exceed the amount which will be made available in the
letter of credit furnished by the Sponsor on the Date of Deposit. The Trustee
has agreed to pay any amounts necessary to cover any such excess and will be
reimbursed therefor, without interest, when funds become available from
interest payments on the Municipal Bonds deposited in that Trust Fund.
 
PUBLIC OFFERING OF UNITS
 
PUBLIC OFFERING PRICE. Units of each Trust Fund are offered at the Public
Offering Price thereof. During the initial offering period, the Public
Offering Price per Unit is equal to the aggregate of the offering side
evaluations of the Municipal Bonds in a Trust Fund (as determined, pursuant to
the terms of a contract with the Evaluator, by Muller Data Corporation, a
non-affiliated firm regularly engaged in the business of evaluating, quoting
or appraising comparable securities), plus or minus a pro rata share of (a)
cash, if any, in the Principal Account held or owed by a Trust Fund, (b)
Purchased Interest and (c) Daily Accrued Interest plus the applicable sales
charge referred to in the table below divided by the number of outstanding
Units of such Trust Fund. The Public Offering Price for secondary market
transactions, on the other hand, is based on the bid side evaluations of the
Municipal Bonds in a Trust Fund as determined by Kenny Information Systems,
Inc. plus or minus (a) cash, if any, in the Principal Account held or owned by
the Trust Fund, (b) Purchased Interest and (c) Daily Accrued Interest plus a
sales charge based upon the dollar weighted average maturity of the Trust
Fund.
 
The sales charge per Unit will be reduced during the initial offering period
pursuant to the following graduated scale:
 
<TABLE>
<CAPTION>
                                                      WEIGHTED AVERAGE YEARS TO MATURITY
                             ------------------------------------------------------------------------------------
                                    0 TO 7.49                    7.5 TO 14.99                   15 OR MORE
                            -------------------------     -------------------------     -------------------------
                            PERCENT OF     PERCENT OF     PERCENT OF     PERCENT OF     PERCENT OF     PERCENT OF
                             OFFERING      NET AMOUNT      OFFERING      NET AMOUNT      OFFERING      NET AMOUNT
     NUMBER OF UNITS           PRICE        INVESTED         PRICE        INVESTED         PRICE        INVESTED
                             ---------     -----------     ---------     -----------     ---------     -----------
<S>                        <C>            <C>            <C>            <C>            <C>            <C>
1 to 9,999 Units.........       3.0   %       3.093  %        3.9   %       4.058  %        4.2   %       4.384  %
10,000 to 24,999 Units...       2.8           2.881           3.7           3.842           4.0           4.167
25,000 to 49,999 Units...       2.6           2.669           3.5           3.627           3.8           3.950
50,000 to 99,999 Units...       2.5           2.564           3.3           3.413           3.5           3.627
100,000 or more Units....       1.8           1.883           2.0           2.001           2.2           2.249
</TABLE>
 
As indicated above, in connection with secondary market transactions the sales
charge is based upon the dollar weighted average maturity of the Trust Funds
and is determined in accordance with the table set forth below. For purposes
of this computation, Bonds will be deemed to mature on their expressed
maturity dates unless: (a) the Bonds have been called for redemption or funds
or securities have been placed in escrow to redeem them on an earlier call
date, in which case such call date will be deemed to be the date upon which
they mature; or (b) such Bonds are subject to a "mandatory tender", in which
case such mandatory tender will be deemed to be the date upon which they
mature. The effect of this method of sales charge
                                     A-14
 
<PAGE>
computation will be that different sales charge rates will be applied to the
Trust Funds based upon the dollar weighted average maturity of such Trust
Fund's portfolio, in accordance with the following schedule:
 
<TABLE>
<CAPTION>
                                                 PERCENT OF    PERCENT OF NET
                                                   PUBLIC          AMOUNT
YEARS TO MATURITY                              OFFERING PRICE     INVESTED
<S>                                            <C>             <C>
                                               --------------  --------------
 0 to .99 years..............................       0.00 %          0.000 %
 1 to 3.99 years.............................       2.00            2.041
 4 to 7.99 years.............................       3.50            3.627
 8 to 14.99 years............................       4.50            4.712
 15 or more years............................       5.50            5.820
</TABLE>
 
In connection with secondary market transactions the sales charge per Unit
will be reduced as set forth below:
 
<TABLE>
<CAPTION>
                                                             SECONDARY
                                               -------------------------------------
                                                        YEARS TO MATURITY*
                                                4 TO 7.99   8 TO 14.99   15 OR MORE
            AMOUNT OF INVESTMENT               -------------------------------------
                                               SALES CHARGE (% OF PUBLIC OFFERING
                                                                        PRICE)
<S>                                            <C>          <C>          <C>          <C>
$1,000 to $99,999............................      3.50 %       4.50 %       5.50 %
$100,000 to $499,999.........................      3.25         4.25         5.00
$500,000 to $999,999.........................      3.00         4.00         4.50
$1,000,000 or more...........................      2.75         3.75         4.00
</TABLE>
 
- ---------------------------
     * If the dollar weighted average maturity of the Trust Fund is from 1 to
       3.99 years the sales charge is 2% and 1.5% of the Public Offering Price
       for purchases of $1,000 to $249,999 and $250,000 or more, respectively.
 
The reduced sales charges resulting from quantity discounts as shown on the
tables above will apply to all purchases of Units on any one day by the same
purchaser from the same Underwriter or dealer and for this purpose, purchases
of Units of the Trust Fund will be aggregated with concurrent purchases of
Units of any other unit investment trust that may be offered by the Sponsor.
Additionally, Units purchased in the name of a spouse or child (under 21) of
such purchaser will be deemed to be additional purchases by such purchaser.
The reduced sales charges will also be applicable to a trust or other
fiduciary purchasing for a single trust estate or single fiduciary account.
 
The Sponsor intends to permit officers, directors and employees of the Sponsor
and Evaluator and, in the sole discretion of the Sponsor, registered
representatives of selling firms to purchase Units of the Trust without a
sales charge, although a transaction processing fee may be imposed on such
trades.
 
Had the Units of the Trust Funds been available for sale at the opening of
business on the Date of Deposit, the Public Offering Prices would have been as
shown under "Essential Information." The Public Offering Price per Unit of a
Trust Fund on the date of the Prospectus or on any subsequent date will vary
from the amount stated under "Essential Information" in accordance with
fluctuations in the prices of the underlying Municipal Bonds and the amount of
accrued interest on the Units. On the Date of Deposit, pursuant to an
exemptive order from the Securities and Exchange Commission, the Public
Offering Price at which Units will be sold will not exceed the price
determined as of the opening of business on the Date of Deposit as shown under
"Essential Information", however, should the value of the underlying Bonds
decline, purchasers will, of course, be given the benefit of such lower price.
The aggregate bid and offering side evaluations of the Municipal Bonds shall
be determined (a) on the basis of current bid or offering prices of the
Municipal Bonds, (b) if bid or offering prices are not available for any
particular Municipal Bond, on the basis of current bid or offering prices for
comparable bonds, (c) by determining the value of Municipal Bonds on the bid
or offer side of the market by appraisal, or (d) by any combination of the
above. The value of insurance obtained by an issuer of Municipal Bonds is
reflected and included in the market value of such Municipal Bonds.
 
                                     A-15
 
<PAGE>
The Evaluator will consider the ability of the insurer of such Bonds, to meet
its commitments. For example, if an Insured Trust were to hold Municipal Bonds
of a municipality which had significantly deteriorated in credit quality, the
Evaluator would first consider in its evaluation the market price of the
Municipal Bonds at their lower credit rating. The Evaluator would also
attribute a value to the insurance feature of such Municipal Bonds which would
be equal to the difference between the market value of such Municipal Bonds
and the market value of bonds of a similar nature which were of investment
grade quality. It is the position of the Sponsor that this is a fair method of
valuing insured Municipal Bonds and reflects a proper valuation method in
accordance with the provisions of the Investment Company Act of 1940. For a
description of the circumstances under which a full or partial suspension of
the right of Unitholders to redeem their Units may occur, see "Redemption."
 
The foregoing evaluations and computations shall be made as of the evaluation
time stated under "Essential Information," on each business day commencing
with the Date of Deposit of the Municipal Bonds, effective for all sales made
during the preceding 24-hour period.
 
The interest on the Municipal Bonds deposited in each Trust Fund, less the
related estimated fees and expenses, is estimated to accrue in the annual
amounts per Unit set forth under "Essential Information." The amount of net
interest income which accrues per Unit may change as Municipal Bonds mature or
are redeemed, exchanged or sold, or as the expenses of a Trust Fund change or
the number of outstanding Units of such Trust Fund changes.
 
Payment for Units must be made on or before the fifth business day following
purchase. If a Unitholder desires to have certificates representing Units
purchased, such certificates will be delivered as soon as possible following
his written request therefor. For information with respect to redemption of
Units purchased, but as to which certificates requested have not been
received, see "Redemption" below.
 
PURCHASED AND DAILY ACCRUED INTEREST. Accrued interest consists of two
elements. The first element arises as a result of accrued interest which is
the accumulation of unpaid interest on a bond from the later of the last day
on which interest thereon was paid or the date of original issuance of the
bond. Interest on the coupon Bonds in the Trust Fund is paid semi-annually to
the Trust. A portion of the aggregate amount of such accrued interest on the
Bonds in the Trust to the First Settlement Date of the Trust is referred to
herein as "Purchased Interest." Included in the Public Offering Price of the
Trust Units is the Purchased Interest. In an effort to reduce the amount of
Purchased Interest which would otherwise have to be paid by Unitholders, the
Trustee may advance a portion of the accrued interest to the Sponsor as the
Unitholder of record as of the First Settlement Date. The second element of
accrued interest arises because the estimated net interest on the Units in the
Trust Fund is accounted for daily on an accrual basis (herein referred to as
"Daily Accrued Interest"). Because of this, the Units always have an amount of
interest earned but not yet paid or reserved for payment. For this reason, the
Public Offering Price of Units will include the proportionate share of Daily
Accrued Interest to the date of settlement.
 
If a Unitholder sells or redeems all or a portion of his Units or if the Bonds
are sold or otherwise removed or if the Trust Fund is liquidated, he will
receive at that time his proportionate share of the Purchased Interest and
Daily Accrued Interest computed to the settlement date in the case of sale or
liquidation and to the date of tender in the case of redemption in the Trust
Fund.
 
COMPARISON OF PUBLIC OFFERING PRICE AND REDEMPTION PRICE. While the initial
Public Offering Price of Units will be determined on the basis of the current
offering prices of the Municipal Bonds in each Trust Fund, the redemption
price per Unit (as well as the secondary market price per Unit) at which Units
may be redeemed (see "Redemption") will be determined on the basis of the
current bid prices of such Bonds. As of the opening of business on the Date of
Deposit, the Public Offering Prices per Unit (based on the offering prices of
the Municipal Bonds in each Trust Fund and including the sales charge)
exceeded the redemption price at which Units could have been redeemed (based
upon the current bid prices of the Municipal Bonds in the Trust Fund) by the
amount shown under "Essential Information." In the past, bid prices on
municipal bonds similar to those in the Trust Funds have been lower than the
offering prices thereof by as much as 3%
                                     A-16
 
<PAGE>
or more of principal amount in the case of inactively traded municipal bonds
or as little as 1/2 of 1% in the case of actively traded municipal bonds but
the difference between such offering and bid prices may be expected to average
1% to 2% of principal amount. For this reason, among others (including
fluctuations in the market prices of such Bonds and the fact that the Public
Offering Prices include a sales charge), the amount realized by a Unitholder
upon any redemption of Units may be less than the price paid for such Units.
 
PUBLIC DISTRIBUTION OF UNITS. The Sponsor intends to qualify the Units of the
Insured National Trust for sale in all states and Units of the Insured State
Trusts for sale only in the State for which such Trust Fund is named. Units
will be sold through the Underwriters, through dealers who are members of the
National Association of Securities Dealers, Inc. and through others. Sales may
be made to or through dealers at prices which represent discounts from the
Public Offering Price as set forth below. Certain commercial banks are making
Units of the Trust Funds available to their customers on an agency basis. A
portion of the sales charge paid by their customers is retained by or remitted
to the banks in the amounts shown in the table below. Under the Glass-Steagall
Act, banks are prohibited from underwriting Trust Fund Units; however, the
Glass-Steagall Act does permit certain agency transactions and the banking
regulators have indicated that these particular agency transactions are
permitted under such Act. In addition, state securities laws on this issue may
differ from the interpretations of Federal law expressed herein and banks and
financial institutions may be required to register as dealers pursuant to
state law. The Sponsor reserves the right to change the discounts set forth
below from time to time. In addition to such discounts, the Sponsor may, from
time to time, pay or allow an additional discount, in the form of cash or
other compensation, to dealers employing registered representatives who sell,
during a specified time period, a minimum dollar amount of Units of the Trust
and other unit investment trusts underwritten by the Sponsor. The difference
between the discount and the sales charge will be retained by the Sponsor and
the Underwriters.
 
<TABLE>
<CAPTION>
                                                                     PRIMARY
                                    -------------------------------------------------------------------------
                                                       WEIGHTED AVERAGE YEARS TO MATURITY
                                           0 TO 7.49              7.5 TO 14.99              15 OR MORE
                                    -------------------------------------------------------------------------
<S>                                 <C>                      <C>                      <C>                      <C>
         NUMBER OF UNITS                                        DISCOUNT PER UNIT
                                    -------------------------------------------------------------------------
1 to 9,999 Units..................           $0.20                    $0.26                    $0.30
10,000 to 24,999 Units............           $0.19                    $0.25                    $0.28
25,000 to 49,999 Units............           $0.18                    $0.23                    $0.26
50,000 to 99,999 Units............           $0.17                    $0.22                    $0.24
100,000 or more Units.............           $0.10                    $0.11                    $0.12
</TABLE>
 
<TABLE>
<CAPTION>
                                                             SECONDARY
                                               -------------------------------------
                                                        YEARS TO MATURITY*
                                                4 TO 7.99   8 TO 14.99   15 OR MORE
                                               -------------------------------------
            AMOUNT OF INVESTMENT                         DISCOUNT PER UNIT
                                                   (% OF PUBLIC OFFERING PRICE)
                                               -------------------------------------
<S>                                            <C>          <C>          <C>          <C>
$1,000 to $99,999............................      2.00 %       3.00 %       4.00 %
$100,000 to $499,999.........................      1.75         2.75         3.50
$500,000 to $999,999.........................      1.50         2.50         3.00
$1,000,000 or more...........................      1.25         2.25         2.50
</TABLE>
 
- ---------------------------
      * If the dollar weighted average maturity of a Trust Fund is from 1 to
        3.99 years the concession or agency commission is 1.00% of the Public
        Offering Price.
 
The Underwriters reserve the right to reject, in whole or in part, any order
for the purchase of Units.
 
                                     A-17
 
<PAGE>
PROFITS OF SPONSOR AND UNDERWRITERS. As set forth under "Underwriting," the
Underwriters of each Trust Fund will receive gross sales charges equal to the
percentage of the Public Offering Price of the Units of such Trust Fund stated
under "Public Offering Price" and the Sponsor will receive a fixed portion of
such sales charges. In addition, the Underwriters and the Sponsor may realize
a profit (or the Sponsor may realize a loss) resulting from the difference
between the purchase prices of the Municipal Bonds to the Sponsor and the cost
of such Bonds to the Trust Funds, which is based on the offering side
evaluation of the Municipal Bonds on the Date of Deposit. See "The Trust
Funds--Portfolios" and "Underwriting." The Underwriters may also realize
profits or losses with respect to Municipal Bonds deposited in the Trust
Funds, which were acquired from underwriting syndicates of which any of the
Underwriters were members. An underwriter or underwriting syndicate purchases
bonds from the issuer on a negotiated or competitive bid basis, as principal,
with the motive of marketing such bonds to investors at a profit. The
Underwriters of a Trust Fund and the Sponsor may realize additional profits or
losses during the initial offering period on unsold Units as a result of
changes in the daily evaluation of the Municipal Bonds in the Trust Funds.
 
MARKET FOR UNITS
 
After the initial offering period, while not obligated to do so, the Sponsor
intends to, and certain of the Underwriters may, subject to change at any
time, maintain a market for Units of the Trust Funds offered hereby and to
continuously offer to purchase said Units at prices, determined by the
Evaluator, based on the aggregate bid prices of the underlying Municipal Bonds
in such Trust Funds, together with Purchased Interest and Daily Accrued
Interest to the expected dates of settlement. To the extent that a market is
maintained during the initial offering period, the prices at which Units will
be repurchased will be based upon the aggregate offering side evaluation of
the Municipal Bonds in the Trust Funds. The aggregate bid prices of the
underlying Municipal Bonds in each Trust Fund are expected to be less than the
related aggregate offering prices (which is the evaluation method used during
the initial public offering period). Accordingly, Unitholders who wish to
dispose of their Units should inquire of their bank or broker as to current
market prices in order to determine whether there is in existence any price in
excess of the Redemption Price and, if so, the amount thereof.
 
The offering price of any Units resold by the Sponsor or Underwriters will be
in accord with that described in the currently effective Prospectus describing
such Units. Any profit or loss resulting from the resale of such Units will
belong to the Sponsor and/or the Underwriters. The Sponsor and/or the
Underwriters may suspend or discontinue purchases of Units of any Trust Fund
if the supply of Units exceeds demand, or for other business reasons.
 
REDEMPTION
 
A Unitholder who does not dispose of Units in the secondary market described
above may cause Units to be redeemed by the Trustee by making a written
request to the Trustee, Investors Fiduciary Trust Company, P.O. Box 419430,
Kansas City, Missouri, 64173-0216 and, in the case of Units evidenced by a
certificate, by tendering such certificate to the Trustee, properly endorsed
or accompanied by a written instrument or instruments of transfer in form
satisfactory to the Trustee. Unitholders must sign the request, and such
certificate or transfer instrument, exactly as their names appear on the
records of the Trustee and on any certificate representing the Units to be
redeemed. If the amount of the redemption is $25,000 or less and the proceeds
are payable to the Unitholder(s) of record at the address of record, no
signature guarantee is necessary for redemptions by individual account owners
(including joint owners). Additional documentation may be requested, and a
signature guarantee is always required, from corporations, executors,
administrators, trustees, guardians or associations. The signatures must be
guaranteed by a commercial bank
                                     A-18
 
<PAGE>
or trust company, savings & loan association or by a member firm of a national
securities exchange. A certificate should only be sent by registered or
certified mail for the protection of the Unitholder. Since tender of the
certificate is required for redemption when one has been issued, Units
represented by a certificate cannot be redeemed until the cetificate
representing such Units has been received by the purchasers.
 
Redemption shall be made by the Trustee on the seventh calendar day following
the day on which a tender for redemption is received, or if the seventh
calendar day is not a business day, on the first business day prior thereto
(the "Redemption Date") by payment of cash equivalent to the Redemption Price
for such Trust Fund, determined as set forth below under "Computation of
Redemption Price," as of the evaluation time stated under "Essential
Information," next following such tender, multiplied by the number of Units
being redeemed. Any Units redeemed shall be cancelled and any undivided
fractional interest in the Trust Fund extinguished. The price received upon
redemption might be more or less than the amount paid by the Unitholder
depending on the value of the Municipal Bonds in the Trust Fund at the time of
redemption.
 
Under regulations issued by the Internal Revenue Service, the Trustee is
required to withhold a certain percentage of the principal amount of a Unit
redemption if the Trustee has not been furnished the redeeming Unitholder's
tax identification number in the manner required by such regulations. Any
amount so withheld is transmitted to the Internal Revenue Service and may be
recovered by the Unitholder only when filing a tax return. Under normal
circumstances the Trustee obtains the Unitholder's tax identification number
from the selling broker. However, any time a Unitholder elects to tender Units
for redemption, such Unitholder should 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 must be provided at the time redemption is
requested.
 
Any amounts paid on redemption representing interest shall be withdrawn from
the Interest Account for such Trust Fund to the extent that funds are
available for such purpose. All other amounts paid on redemption shall be
withdrawn from the Principal Account for such Trust Fund. The Trustee is
empowered to sell Municipal Bonds for a Trust Fund in order to make funds
available for the redemption of Units of such Trust Fund. Such sale may be
required when Municipal Bonds would not otherwise be sold and might result in
lower prices than might otherwise be realized. To the extent Municipal Bonds
are sold, the size and diversity of the Trust Fund will be reduced.
 
The Trustee is irrevocably authorized in its discretion, if an Underwriter
does not elect to purchase any Unit tendered for redemption, in lieu of
redeeming such Units, to sell such Units in the over-the-counter market for
the account of tendering Unitholders at prices which will return to the
Unitholders amounts in cash, net after brokerage commissions, transfer taxes
and other charges, equal to or in excess of the Redemption Price for such
Units. In the event of any such sale, the Trustee shall pay the net proceeds
thereof to the Unitholders on the day they would otherwise be entitled to
receive payment of the Redemption Price.
 
The right of redemption may be suspended and payment postponed (1) for any
period during which the New York Stock Exchange is closed, other than
customary weekend and holiday closings, or during which (as determined by the
Securities and Exchange Commission) trading on the New York Stock Exchange is
restricted; (2) for any period during which an emergency exists as a result of
which disposal by the Trustee of Municipal Bonds is not reasonably practicable
or it is not reasonably practicable to fairly determine the value of the
underlying Municipal Bonds in accordance with the Trust Agreements; or (3) for
such other period as the Securities and Exchange Commission may by order
permit. 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.
 
                                     A-19
 
<PAGE>
COMPUTATION OF REDEMPTION PRICE. The Redemption Price for Units of each Trust
Fund is computed by the Evaluator as of the evaluation time stated under
"Essential Information" next occurring after the tendering of a Unit for
redemption and on any other business day desired by it, by:
 
A. adding: (1) the cash on hand in the Trust Fund other than cash deposited in
the Trust Fund to purchase Municipal Bonds not applied to the purchase of such
Bonds; (2) the aggregate value of each issue of the Municipal Bonds (including
"when issued" contracts, if any) held in the Trust Fund as determined by the
Evaluator on the basis of bid prices therefor; and (3) interest accrued and
unpaid on the Municipal Bonds in the Trust Fund as of the date of computation;
 
B. deducting therefrom (1) amounts representing any applicable taxes or
governmental charges payable out of the Trust Fund and for which no deductions
have been previously made for the purpose of additions to the Reserve Account
described under "Expenses of the Trust"; (2) an amount representing estimated
accrued expenses of the Trust Fund, including but not limited to fees and
expenses of the Trustee (including legal and auditing fees and any insurance
costs), the Evaluator, the Sponsor and bond counsel, if any; (3) cash held for
distribution to Unitholders of record as of the business day prior to the
evaluation being made; and (4) other liabilities incurred by the Trust Fund;
and
 
C. finally dividing the results of such computation by the number of Units of
the Trust Fund outstanding as of the date thereof.
 
UNITHOLDERS
 
OWNERSHIP OF UNITS. Ownership of Units of any Trust Fund will not be evidenced
by certificates unless a Unitholder, the Unitholder's registered broker/dealer
or the clearing agent for such broker/dealer makes a written request to the
Trustee. Certificates, if issued, will be so noted on the confirmation
statement sent to the Underwriter and broker. Non-receipt of such
certificate(s) must be reported to the Trustee within one year; otherwise, a
2% surety bond fee will be required for replacement.
 
Units are transferable by making a written request to the Trustee and, in the
case of Units evidenced by a certificate, by presenting and surrendering such
certificate to the Trustee properly endorsed or accompanied by a written
instrument or instruments of transfer which should be sent registered or
certified mail for the protection of the Unitholder. Unitholders must sign
such written request, and such certificate or transfer instrument, exactly as
their names appear on the records of the Trustee and on any certificate
representing the Units to be transferred. Such signatures must be guaranteed
by a commercial bank or trust company, savings and loan association or by a
member firm of a national securities exchange.
 
Units may be purchased and certificates, if requested, will be issued in
denominations of one Unit subject to the Trust's minimum investment
requirement of 1 Unit or any whole Unit multiple thereof subject to any
minimum requirement established by the Sponsor from time to time. Any
certificate issued will be numbered serially for identification, issued in
fully registered form and will be transferable only on the books of the
Trustee. The Trustee may require a Unitholder to pay a reasonable fee, to be
determined in the sole discretion of the Trustee, for each certificate
re-issued or transferred and to pay any governmental charge that may be
imposed in connection with each such transfer or interchange. The Trustee at
the present time does not intend to charge for the normal transfer or
interchange of certificates. Destroyed, stolen, mutilated or lost certificates
will be replaced upon delivery to the Trustee of satisfactory indemnity
(generally amounting to 3% of the market value of the Units), affidavit of
loss, evidence of ownership and payment of expenses incurred.
 
                                     A-20
 
<PAGE>
DISTRIBUTIONS TO UNITHOLDERS. Interest Distributions: Interest received by
each Trust Fund, including any portion of the proceeds from a disposition of
Municipal Bonds which represents accrued interest, is credited by the Trustee
to the Interest Account for such Trust Fund. All other receipts are credited
by the Trustee to a separate Principal Account for the Trust Fund. The Trustee
normally has no cash for distribution to Unitholders until it receives
interest payments on the Bonds in the Trust Fund. Since municipal interest
usually is paid semi-annually, during the initial months of the Trust, the
Interest Account of each Trust Fund, consisting of accrued but uncollected
interest and collected interest (cash), will be predominantly the uncollected
accrued interest that is not available for distribution. On the dates set
forth under "Essential Information" for each Trust, the Trustee will commence
distributions, in part from funds advanced by the Trustee.
 
Thereafter, assuming the Trust Fund retains its original size and composition,
after deduction of the fees and expenses of the Trustee, the Sponsor and
Evaluator and reimbursements (without interest) to the Trustee for any amounts
advanced to a Trust Fund, the Trustee will normally distribute on each
Interest Distribution Date (the fifteenth of the month) or shortly thereafter
to Unitholders of record of such Trust Fund on the preceding Record Date
(which is the first day of each month). Unitholders of the Trust Funds will
receive an amount substantially equal to one-twelfth of such holders' pro rata
share of the estimated net annual interest income to the Interest Account of
such Trust Fund. However, interest earned at any point in time will be greater
than the amount actually received by the Trustee and distributed to the
Unitholders. Therefore, there will always remain an item of accrued interest
that is added to the daily value of the Units. If Unitholders of a Trust Fund
sell or redeem all or a portion of their Units, they will be paid their
proportionate share of the accrued interest of such Trust Fund to, but not
including, the fifth business day after the date of a sale or to the date of
tender in the case of a redemption.
 
In order to equalize distributions and keep the undistributed interest income
of the Trust Funds at a low level, all Unitholders of record in such Trust
Fund on the first Record Date will receive an interest distribution on the
first Interest Distribution Date. Because the period of time between the first
Interest Distribution Date and the regular distribution dates may not be a
full period, the first regular distributions may be partial distributions.
 
Persons who purchase Units between a Record Date and a Distribution Date will
receive their first distribution on the second Distribution Date following
their purchase of Units. Since interest on Municipal Bonds in the Trust Funds
is payable at varying intervals, usually in semi-annual installments, and
distributions of income are made to Unitholders at different intervals from
receipt of interest, the interest accruing to a Trust Fund may not be equal to
the amount of money received and available for distribution from the Interest
Account. Therefore, on each Distribution Date the amount of interest actually
deposited in the Interest Account of a Trust Fund and available for
distribution may be slightly more or less than the interest distribution made.
In order to eliminate fluctuations in interest distributions resulting from
such variances, the Trustee is authorized by the Trust Agreements to advance
such amounts as may be necessary to provide interest distributions of
approximately equal amounts. The Trustee will be reimbursed, without interest,
for any such advances from funds available in the Interest Account for such
Trust Fund.
 
Principal Distributions. The Trustee will distribute on each Distribution Date
or shortly thereafter, to each Unitholder of record of the Trust Fund on the
preceding Record Date, an amount substantially equal to such holder's pro rata
share of the cash balance, if any, in the Principal Account of such Trust Fund
computed as of the close of business on the preceding Record Date. However, no
distribution will be required if the balance in the Principal Account is less
than $.001 per Unit.
 
                                     A-21
 
<PAGE>
STATEMENTS TO UNITHOLDERS. With each distribution, the Trustee will furnish or
cause to be furnished to each Unitholder a statement of the amount of interest
and the amount of other receipts, if any, which are being distributed,
expressed in each case as a dollar amount per Unit.
 
The accounts of each Trust Fund are required to be audited annually, at the
Trust Fund's expense, by independent auditors designated by the Sponsor,
unless the Trustee determines that such an audit would not be in the best
interest of the Unitholders of such Trust Fund. The accountants' report will
be furnished by the Trustee to any Unitholder of such Trust Fund upon written
request. 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 Unitholder of a Trust Fund a statement, covering the
calendar year, setting forth for the applicable Trust Fund:
 
A. As to the Interest Account:
 
1. The amount of interest received on the Municipal Bonds and the percentage
of such amount by states and territories in which the issuers of such Bonds
are located;
 
2. The amount paid from the Interest Account representing accrued interest of
any Units redeemed;
 
3. The deductions from the Interest Account for applicable taxes, if any, fees
and expenses (including auditing fees) of the Trustee, the Evaluator, and, if
any, of bond counsel;
 
4. Any amounts credited by the Trustee to the Reserve Account described under
"Expenses of the Trust";
 
5. The net amount remaining after such payments and deductions, expressed both
as a total dollar amount and a dollar amount per Unit outstanding on the last
business day of such calendar year; and
 
B. As to the Principal Account:
 
1. The dates of the maturity, liquidation or redemption of any of the
Municipal Bonds and the net proceeds received therefrom excluding any portion
credited to the Interest Account;
 
2. The amount paid from the Principal Account representing the principal of
any Units redeemed;
 
3. The deductions from the Principal Account for payment of applicable taxes,
if any, fees and expenses (including auditing fees) of the Trustee, the
Evaluator, and, if any, of bond counsel;
 
4. The amount of when-issued interest treated as a return of capital, if any;
 
5. Any amounts credited by the Trustee to the Reserve Account described under
"Expenses of the Trust";
 
6. The net amount remaining after distributions of principal and deductions,
expressed both as a dollar amount and as a dollar amount per Unit outstanding
on the last business day of the calendar year; and
 
C. The following information:
 
1. A list of the Municipal Bonds as of the last business day of such calendar
year;
 
2. The number of Units outstanding on the last business day of such calendar
year;
 
3. The Redemption Price based on the last evaluation made during such calendar
year;
 
4. The amount actually distributed during such calendar year from the Interest
and Principal Accounts separately stated, expressed both as total dollar
amounts and as dollar amounts per Unit outstanding on the Record Dates for
each such distribution.
 
                                     A-22
 
<PAGE>
RIGHTS OF UNITHOLDERS. A Unitholder may at any time tender Units to the
Trustee for redemption. The death or incapacity of any Unitholder will not
operate to terminate a Trust or any Trust Fund nor entitle legal
representatives or heirs to claim an accounting or to bring any action or
proceeding in any court for partition or winding up of a Trust or any Trust
Fund.
 
No Unitholder shall have the right to control the operation and management of
any Trust Fund in any manner, except to vote with respect to the amendment of
the Trust Agreements or termination of any Trust Fund.
 
INVESTMENT SUPERVISION
 
The Sponsor may not alter the portfolios of the Trust Funds by the purchase,
sale or substitution of Municipal Bonds, except in the special circumstances
noted below and as indicated earlier under "Portfolios" regarding the
substitution of Replacement Bonds for any Failed Bonds. Thus, with the
exception of the redemption or maturity of Municipal Bonds in accordance with
their terms, the assets of the Trust Funds will remain unchanged under normal
circumstances.
 
The Sponsor may direct the Trustee to dispose of Municipal Bonds the value of
which has been affected by certain adverse events including institution of
certain legal proceedings or decline in price or the occurrence of other
market factors, including advance refunding, so that in the opinion of the
Sponsor the retention of such Bonds in a Trust Fund would be detrimental to
the interest of the Unitholders. The proceeds from any such sales, exclusive
of any portion which represents accrued interest, will be credited to the
Principal Account of such Trust Fund for distribution to the Unitholders.
 
The Sponsor is required to instruct the Trustee to reject any offer made by an
issuer of Muncipal Bonds to issue new obligations in exchange or substitution
for any of such Bonds pursuant to a refunding financing plan, except that the
Sponsor may instruct the Trustee to accept or reject such an offer or to take
any other action with respect thereto as the Sponsor may deem proper if (1)
the issuer is in default with respect to such Bonds or (2) in the written
opinion of the Sponsor the issuer will probably default with respect to such
Bonds in the reasonably forseeable future. Any obligation so received in
exchange or substitution will be held by the Trustee subject to the terms and
conditions of the Trust Agreement to the same extent as Bonds originally
deposited thereunder. Within five days after the deposit of obligations in
exchange or substitution for underlying Bonds, the Trustee is required to give
notice thereof to each Unitholder, identifying the Bonds eliminated and the
Bonds substituted therefor.
 
The Trustee may sell Municipal Bonds, designated by the Sponsor, from a Trust
Fund for the purpose of redeeming Units of such Trust Fund tendered for
redemption and the payment of expenses.
 
ADMINISTRATION OF THE TRUSTS
 
THE TRUSTEE. The Trustee, Investors Fiduciary Trust Company, is a trust
company specializing in investment related services, organized and existing
under the laws of Missouri, having its trust office at 127 West 10th Street,
Kansas City, Missouri 64105. The Trustee is subject to supervision and
examination by the Division of Finance of the State of Missouri and the
Federal Deposit Insurance Corporation. Investors Fiduciary Trust Company is
jointly owned by DST Systems, Inc. and Kemper Financial Services, Inc., an
affiliate of the Sponsor.
 
The Trustee, whose duties are ministerial in nature, has not participated in
selecting the portfolio of any Trust Fund. For information relating to the
responsibilities of the Trustee under the Trust Agreements, reference is made
to the material set forth under "Unitholders."
 
                                     A-23
 
<PAGE>
In accordance with the Trust Agreements, the Trustee shall keep records of all
transactions at its office. Such records shall include the name and address
of, and the number of Units held by, every Unitholder of each Trust Fund. Such
books and records shall be open to inspection by any Unitholder of such Trust
Fund at all reasonable times during usual business hours. The Trustee shall
make such annual or other reports as may from time to time be required under
any applicable state or Federal statute, rule or regulation. The Trustee shall
keep a certified copy or duplicate original of the Trust Agreements on file in
its office available for inspection at all reasonable times during usual
business hours by any Unitholder, together with a current list of the
Municipal Bonds held in each Trust Fund. Pursuant to the Trust Agreements, the
Trustee may employ one or more agents for the purpose of custody and
safeguarding of Municipal Bonds comprising the Trust Funds.
 
Under the Trust Agreements, the Trustee or any successor trustee may resign
and be discharged of its duties created by the Trust Agreements by executing
an instrument in writing and filing the same with the Sponsor.
 
The Trustee or successor trustee must mail a copy of the notice of resignation
to all Unitholders then of record, not less than 60 days before the date
specified in such notice when such resignation is to take effect. The Sponsor
upon receiving notice of such resignation is obligated to appoint a successor
trustee promptly. If, upon such resignation, no successor trustee 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. In case the Trustee becomes incapable of acting or
is adjudged a bankrupt or is taken over by public authorities, the Sponsor may
remove the Trustee and appoint a successor trustee as provided in the Trust
Agreements. Notice of such removal and appointment shall be mailed to each
Unitholder by the Sponsor. Upon execution of a written acceptance of such
appointment by such successor trustee, all the rights, powers, duties and
obligations of the original Trustee shall vest in the successor. The Trustee
shall be a corporation organized under the laws of the United States, or any
state thereof, which is authorized under such laws to exercise trust powers.
The Trustee shall have at all times an aggregate capital, surplus and
undivided profits of not less than $2,000,000.
 
THE EVALUATOR. Kemper Unit Investment Trusts, a service of Kemper Securities,
Inc., the Sponsor, also serves as Evaluator. The Evaluator may resign or be
removed by the Trustee in which event the Trustee is to use its best efforts
to appoint a satisfactory successor. Such resignation or removal shall become
effective upon acceptance of appointment by the successor evaluator. If upon
resignation of the Evaluator no successor has accepted appointment within 30
days after notice of resignation, the Evaluator may apply to a court of
competent jurisdiction for the appointment of a successor. Notice of such
resignation or removal and appointment shall be mailed by the Trustee to each
Unitholder. At the present time, pursuant to a contract with the Evaluator,
Muller Data Corporation, a non-affiliated firm regularly engaged in the
business of evaluating, quoting or appraising comparable securities, provides,
for both the initial offering period and secondary market transactions,
portfolio evaluations of the Bonds in the Trust Funds which are then reviewed
by the Evaluator. In the event the Sponsor is unable to obtain current
evaluations from Muller Data Corporation, it may make its own evaluations or
it may utilize the services of any other non-affiliated evaluator or
evaluators it deems appropriate.
 
AMENDMENT AND TERMINATION. The Trust Agreements 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 which may be defective or
inconsistent; (2) to change any provision thereof as may be required by the
Securities and Exchange Commission or any successor governmental agency; or
(3) to make such provisions as shall not adversely affect the interests of the
Unitholders. The Trust Agreements with respect to the Trust Funds may also be
amended in any respect by the Sponsor and the Trustee, or any of the
provisions thereof may be waived, with the consent of the holders of Units
representing 66 2/3% of the Units then
                                     A-24
 
<PAGE>
outstanding of such Trust Fund, provided that no such amendment or waiver will
reduce the interest of any Unitholder thereof without the consent of such
Unitholder or reduce the percentage of Units required to consent to any such
amendment or waiver without the consent of all Unitholders of such Trust Fund.
In no event shall any Trust Agreement be amended to increase the number of
Units of a Trust Fund issuable thereunder or to permit, except in accordance
with the provisions of such Trust Agreement, the acquisition of any Municipal
Bonds in addition to or in substitution for those initially deposited in a
Trust Fund. The Trustee shall promptly notify Unitholders of the substance of
any such amendment.
 
The Trust Agreements provide that the Trust Funds shall terminate upon the
maturity, redemption or other disposition of the last of the Municipal Bonds
held in a Trust Fund. If the value of a Trust Fund shall be less than the
applicable minimum value stated under "Essential Information" (20% of the
original principal amount of a Trust Fund), the Trustee may, in its
discretion, and shall, when so directed by the Sponsor, terminate the Trust
Fund. A Trust Fund may be terminated at any time by the holders of Units
representing 66 2/3% of the Units thereof then outstanding. In the event of
termination of a Trust Fund, written notice thereof will be sent by the
Trustee to all Unitholders of such Trust Fund. Within a reasonable period
after termination, the Trustee will sell any Municipal Bonds remaining in such
Trust Fund and, after paying all expenses and charges incurred by the Trust
Fund, will distribute to Unitholders thereof (upon surrender for cancellation
of certificates for Units, if issued) their pro rata share of the balances
remaining in the Interest and Principal Accounts of such Trust Fund.
 
LIMITATIONS ON LIABILITY. The Sponsor: The Sponsor is liable for the
performance of its obligations arising from its responsibilities under the
Trust Agreements, but will be under no liability to the Unitholders for taking
any action or refraining from any action in good faith pursuant to the Trust
Agreements or for errors in judgment, except in cases of its own gross
negligence, bad faith or willful misconduct. The Sponsor shall not be liable
or responsible in any way for depreciation or loss incurred by reason of the
sale of any Municipal Bonds.
 
The Trustee: The Trust Agreements provide that the Trustee shall be under no
liability for any action taken in good faith in reliance upon prima facie
properly executed documents or for the disposition of monies, Municipal Bonds
or certificates except by reason of its own gross negligence, bad faith or
willful misconduct, nor shall the Trustee be liable or responsible in any way
for depreciation or loss incurred by reason of the sale by the Trustee of any
Municipal Bonds. In the event that the Sponsor shall fail to act, the Trustee
may act and shall not be liable for any such action taken by it in good faith.
The Trustee shall not be personally liable for any taxes or other governmental
charges imposed upon or in respect of the Municipal Bonds or upon the interest
thereon. In addition, the Trust Agreements contain other customary provisions
limiting the liability of the Trustee.
 
The Evaluator: The Trustee and Unitholders may rely on any evaluation
furnished by the Evaluator and shall have no responsibility for the accuracy
thereof. The Trust Agreements provide that the determinations made by the
Evaluator shall be made in good faith upon the basis of the best information
available to it, provided, however, that the Evaluator shall be under no
liability to the Trustee or Unitholders for errors in judgment, but shall be
liable only for its gross negligence, lack of good faith or willful
misconduct.
 
EXPENSES OF THE TRUSTS
 
The Sponsor will charge the Trust Funds a surveillance fee for services
performed for the Trust Funds in an amount not to exceed that amount set forth
in "Essential Information" but in no event will such compensation, when
combined with all compensation received from other unit investment trusts for
which the Sponsor both acts as sponsor and provides portfolio surveillance,
exceed the aggregate cost to the
                                     A-25
 
<PAGE>
Sponsor for providing such services. Such fee shall be based on the total
number of Units of the Trust Fund outstanding as of the January Record Date
for any annual period. The Sponsor will receive a portion of the sales
commissions paid in connection with the purchase of Units and will share in
profits, if any, related to the deposit of Municipal Bonds in the Trust Funds
(see "Underwriting"). The Sponsor and other Underwriters have borne all the
expenses of creating and establishing the Trust including the cost of the
initial preparation, printing and execution of the Prospectus, Trust
Agreements and certificates, legal and accounting expenses, advertising and
selling expenses, payment of closing fees, the expenses of the Trustee,
evaluation fees relating to the deposit and other out-of-pocket expenses.
 
The Trustee receives for its services fees set forth under "Essential
Information." The Trustee fee which is calculated monthly is based on the
largest aggregate principal amount of Municipal Bonds in the Trust Fund at any
time during the period. Funds that are available for future distributions,
redemptions and payment of expenses are held in accounts which are
non-interest bearing to Unitholders and are available for use by the Trustee
pursuant to normal trust procedures; however, the Trustee is also authorized
by the Trust Agreements to make from time to time certain non-interest bearing
advances to the Trust Funds. During the first year the Trustee has agreed to
lower its fees and absorb expenses by the amount set forth under "Essential
Information." The Trustee's fee will not be increased in future years in order
to make up this reduction in the Trustee's fee. The Trustee's fee is payable
on or before each Distribution Date.
 
For evaluation of Municipal Bonds in each Trust Fund, the Evaluator shall
receive a fee, payable monthly, calculated on the basis of that annual rate
set forth under "Essential Information," based upon the largest aggregate
principal amount of Municipal Bonds in such Trust Fund at any time during such
monthly period.
 
The Trustee's and Evaluator's fees are deducted first from the Interest
Account of the Trust Fund to the extent funds are available and then from the
Principal Account. Such fees may be increased without approval of Unitholders
by amounts not exceeding a proportionate increase in the Consumer Price Index
entitled "All Services Less Rent of Shelter," published by the United States
Department of Labor, or any equivalent index substituted therefor.
 
The following additional charges are or may be incurred by the Trust Funds:
(a) fees for the Trustee's extraordinary services; (b) expenses of the Trustee
(including legal and auditing expenses and insurance costs for Insured Trust
Funds, but not including any fees and expenses charged by any agent for
custody and safeguarding of Municipal Bonds) and of bond counsel, if any; (c)
various governmental charges; (d) expenses and costs of any action taken by
the Trustee to protect the Trust or any Trust Fund or the rights and interests
of the Unitholders; (e) indemnification of the Trustee for any loss, liability
or expense incurred by it in the administration of the Trust or any Trust Fund
not resulting from gross negligence, bad faith or willful misconduct on its
part; (f) indemnification of the Sponsor for any loss, liability or expense
incurred in acting in that capacity without gross negligence, bad faith or
willful misconduct; and (g) expenditures incurred in contacting Unitholders
upon termination of the Trust Funds. The fees and expenses set forth herein
are payable out of the appropriate Trust Fund and, when owing to the Trustee,
are secured by a lien on such Trust Fund. Fees or charges relating to the
Trust shall be allocated to each Trust Fund in the same ratio as the principal
amount of such Trust Fund bears to the total principal amount of all Trust
Funds in the Trust. Fees or charges relating solely to a particular Trust Fund
shall be charged only to such Trust Fund.
 
Fees and expenses of the Trust Funds shall be deducted from the Interest
Account thereof, or, to the extent funds are not available in such Account,
from the Principal Accounts. The Trustee may withdraw from the Principal
Account or the Interest Account of any Trust Fund such amounts, if any, as it
deems necessary to establish a reserve for any taxes or other governmental
charges or other extraordinary expenses payable out of the Trust Fund. Amounts
so withdrawn shall be credited to a separate account maintained for the Trust
                                     A-26
 
<PAGE>
Fund known as the Reserve Account and shall not be considered a part of the
Trust Fund when determining the value of the Units until such time as the
Trustee shall return all or any part of such amounts to the appropriate
account.
 
THE SPONSOR
 
The Sponsor, Kemper Unit Investment Trusts, with an office at 77 West Wacker
Drive, 5th Floor, Chicago, Illinois 60601, (800) 621-5024, is a service of
Kemper Securities, Inc., which is a wholly-owned subsidiary of Kemper
Financial Companies, Inc. which, in turn, is a wholly-owned subsidiary of
Kemper Corporation. The Sponsor acts as underwriter of a number of other
Kemper unit investment trusts and will act as underwriter of any other unit
investment trust products developed by the Sponsor in the future. As of April
30, 1993, the total stockholder's equity of Kemper Securities, Inc. was
$426,125,017 (unaudited).
 
If at any time the Sponsor shall fail to perform any of its duties under the
Trust Agreements or shall become incapable of acting or shall be adjudged a
bankrupt or insolvent or shall have its affairs taken over by public
authorities, then the Trustee may (a) appoint a successor sponsor at rates of
compensation deemed by the Trustee to be reasonable and not exceeding such
reasonable amounts as may be prescribed by the Securities and Exchange
Commission, or (b) terminate the Trust Agreements and liquidate the Trust
Funds as provided therein, or (c) continue to act as Trustee without
terminating the Trust Agreements.
 
The foregoing financial information with regard to the Sponsor relates to the
Sponsor only and not to these Trust Funds. Such information is included in
this Prospectus only for the purpose of informing investors as to the
financial responsibility of the Sponsor and its ability to carry out its
contractual obligations with respect to the Trust Funds. More comprehensive
financial information can be obtained upon request from the Sponsor.
 
LEGAL OPINIONS
 
The legality of the Units offered hereby and certain matters relating to
Federal tax law have been passed upon by Chapman and Cutler, 111 West Monroe
Street, Chicago, Illinois 60603, as counsel for the Sponsor. Special counsel
for the Trust Funds for respective state tax matters are named in the
appropriate state tax sections of "Special Considerations and State Tax
Status."
 
INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
The statements of condition and the related municipal bond portfolios at the
Date of Deposit included in this Prospectus have been audited by Grant
Thornton, independent certified public accountants, as set forth in their
report in the Prospectus, and are included herein in reliance upon the
authority of said firm as experts in accounting and auditing.
 
                                     A-27
 
<PAGE>
 
<TABLE>
<CAPTION>
CONTENTS                                               PAGE
<S>                                               <C>
SUMMARY.........................................          2
ESSENTIAL INFORMATION...........................          3
THE TRUST FUNDS.................................          5
  General.......................................          5
  Series Information............................          6
  Taxable Equivalent Estimated Current Return
    Tables......................................          7
  Portfolios....................................          9
  Notes to Portfolios...........................         12
UNDERWRITING....................................         13
REPORT OF INDEPENDENT CERTIFIED PUBLIC
  ACCOUNTANTS...................................         15
STATEMENTS OF CONDITION.........................         16
SPECIAL CONSIDERATIONS AND STATE TAX
  STATUS........................................         17
FEDERAL TAX STATUS..............................         28
ESTIMATED CASHFLOWS TO UNITHOLDERS..............         31
DESCRIPTION OF MUNICIPAL BOND RATINGS...........        A-1
PORTFOLIOS......................................        A-3
  General Trust Information.....................        A-5
INSURANCE ON THE PORTFOLIOS OF THE INSURED TRUST
  FUNDS.........................................        A-9
DISTRIBUTION REINVESTMENT.......................       A-13
INTEREST, ESTIMATED LONG-TERM RETURN AND
  ESTIMATED CURRENT RETURN......................       A-13
PUBLIC OFFERING OF UNITS........................       A-14
  Public Offering Price.........................       A-14
  Purchased and Daily Accrued Interest..........       A-16
  Comparison of Public Offering Price and
    Redemption Price............................       A-16
  Public Distribution of Units..................       A-17
  Profits of Sponsor and Underwriters...........       A-18
MARKET FOR UNITS................................       A-18
REDEMPTION......................................       A-18
  Computation of Redemption Price...............       A-20
UNITHOLDERS.....................................       A-20
  Ownership of Units............................       A-20
  Distributions to Unitholders..................       A-21
  Statements to Unitholders.....................       A-22
  Rights of Unitholders.........................       A-23
INVESTMENT SUPERVISION..........................       A-23
ADMINISTRATION OF THE TRUSTS....................       A-23
  The Trustee...................................       A-23
  The Evaluator.................................       A-24
  Amendment and Termination.....................       A-24
  Limitations on Liability......................       A-25
EXPENSES OF THE TRUSTS..........................       A-25
THE SPONSOR.....................................       A-27
LEGAL OPINIONS..................................       A-27
INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS........       A-27
</TABLE>
 
  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 THE INVESTMENT COMPANY ACT OF 1940, AND TO WHICH REFERENCE
  IS MADE.
 
  NO PERSON IS AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
  REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS AND ANY INFORMATION OR
  REPRESENTATION NOT CONTAINED HEREIN MUST NOT BE RELIED UPON AS HAVING BEEN
  AUTHORIZED BY THE TRUST, THE TRUSTEE, OR THE SPONSOR. THE TRUST IS
  REGISTERED AS A UNIT INVESTMENT TRUST UNDER THE INVESTMENT COMPANY ACT OF
  1940. SUCH REGISTRATION DOES NOT IMPLY THAT THE TRUST OR THE UNITS HAVE
  BEEN GUARANTEED, SPONSORED, RECOMMENDED OR APPROVED BY THE UNITED STATES
  OR ANY STATE OR ANY AGENCY OR OFFICER THEREOF.
 
  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.
 
KEMPER
DEFINED
FUNDS
TAX EXEMPT
                                                                    PROSPECTUS
INSURED NATIONAL SERIES 8
INSURED NEW YORK SERIES 4
VIRGINIA SERIES 1
FEBRUARY  , 1994
                        KEMPER UNIT INVESTMENT TRUSTS
 
<PAGE>
 
                      CONTENTS OF REGISTRATION STATEMENT


This Registration Statement on Form S-6 comprises the following papers and
documents:

       The facing sheet of Form S-6
       The Cross-Reference Sheet
       The Prospectus
       The signatures

The following exhibits:

1.1    Form of Trust Indenture and Agreement for Series 13 (to be filed by
       amendment).

1.1.1  Standard Terms and Conditions of Trust for Series 13.  Reference is made
       to Exhibit 1.1.1(a) to the Registration Statement on Form S-6, with
       respect to Kemper Tax-Exempt Insured Income Trust, Series A-55, Series
       A-56 and Multi-State Series 15 (Registration No. 33-16876) as filed on
       April 19, 1989.

1.2    Certificate of Incorporation of Kemper Securities, Inc.  Reference is
       made to Exhibit 1.2 to the Registration Statement on Form S-6, with
       respect to Kemper Government Securities Trust (Registration No. 33-26754)
       as filed on February 14, 1989.

1.3    By-laws of Kemper Securities, Inc.  Reference is made to Exhibit 3.1 to
       the Registration Statement on Form S-6, with respect to Kemper Government
       Securities Trust (Registration No. 33-26754) as filed on February 14, 
       1989.

2.1    Form of Certificate of Ownership (pages three to nine, inclusive, of the
       Standard Terms and Conditions of Trust included as Exhibit 1.1.1).

3.1    Opinion of counsel to the Sponsor as to legality of the securities being
       registered including a consent to the use of its name under the headings
       "Tax Status" and "Legal Opinions" in the Prospectus and opinion of
       counsel as to Federal income tax status of the securities being
       registered and certain Missouri tax matters (to be filed by amendment).

4.1    Consent of Moody's Investors Service, Inc. (to be filed by amendment).

4.2    Consent of Muller Data Corporation (to be filed by amendment).

4.3    Gramt Thornton (to be filed by amendment).

                                      S-1
<PAGE>
 
                                   SIGNATURES


     Pursuant to the requirements of the Securities Act of 1933, the Registrant,
Kemper Defined Funds 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 3rd day of February, 1994.


                                       Kemper Defined Funds Series 13
                                          Registrant

                                       By:  Kemper Securities, Inc.
                                            Depositor


                                       By:     /s/ C. Perry Moore
                                          ----------------------------

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below on February 3, 1994 by the
following persons, who constitute a majority of the Board of Directors of Kemper
Securities, Inc.


            Signature                              Title
            ---------                              -----

         James R. Boris              Chairman and Chief Executive Officer
   ---------------------------                                                
         James R. Boris

         Donald F. Eller              Senior Executive Vice President and
   ---------------------------          Director
         Donald F. Eller

         Stanley R. Fallis            Senior Executive Vice President, Chief
   --------------------------           Financial Officer and Director
         Stanley R. Fallis               

         Frank V. Geremia             Senior Executive Vice President and
   --------------------------           Director
         Frank V. Geremia

         David B. Mathis              Director
   --------------------------                      
         David B. Mathis

         Robert T. Jackson            Director
   --------------------------                    
         Robert T. Jackson

         Jay B. Walters               Senior Executive Vice President and
   --------------------------           Director
         Jay B. Walters

       Frederick C. Hosken            Senior Executive Vice President and
   --------------------------           Director                          
       Frederick C. Hosken

                                      S-2
<PAGE>

 
         Charles M. Kierscht          Director
   -------------------------------            
         Charles M. Kierscht

         Arthur J. McGivern           Director
   ------------------------------             
         Arthur J. McGivern



                                           /s/ C. Perry Moore
                                       -------------------------------
                                               C. Perry Moore
 
     C. Perry Moore signs this documents pursuant to Power of Attorney filed
with the Securities and Exchange Commission with (a) Amendment No. 1 to the
Registration Statement on Form S-6 for Kemper Tax-Exempt Insured Income Trust,
Series A-70 and Multi-State Series 28 and Kemper Tax-Exempt Income Trust, Multi-
State Series 42 (Registration No. 33-35425), and (b) Amendment No. 1 to the
Registration Statement on Form S-6 for Kemper Tax-Exempt Insured Income Trust,
Series A-72 and Multi-State Series 30 (Registration No. 33-37178), and (c)
Amendment No. 1 to the Registration Statement on Form S-6 for Kemper Tax-Exempt
Insured Income Trust, Multi-State Series 51 (Registration No. 33-48398).

                                      S-3


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