INSURED MUNICIPALS INCOME TRUST 217TH INSURED MULTI SERIES
487, 1997-05-30
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                                                    File No. 333-25119
                                                           CIK #896362

                   Securities and Exchange Commission
                      Washington, D.C.  20549-1004

                             Amendment No. 1
                                   To
                                Form S-6

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

A. Exact Name of Trust:
   
   Insured Municipals Income Trust
   217th Insured Multi-Series

B. Name of Depositor:

   Van Kampen American Capital
      Distributors, Inc.

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

   One Parkview Plaza
   Oakbrook Terrace, Illinois  60181

D. Name and complete address of agents for service:
   
   Chapman and Cutler
   Attention:  Mark J. Kneedy
   111 W. Monroe Street
   Chicago, Illinois  60603
   
   Van Kampen American Capital
      Distributors, Inc.
   Attention:  Don G. Powell, Chairman
   One Parkview Plaza
   Oakbrook Terrace, Illinois  60181
   
E. Title and amount of securities being registered:  27,746* Units
   
F. Proposed maximum offering price to the public of the securities
   being registered: ($1020 per Unit**):  $28,300,920
   
G. Amount of filing fee, computed at one thirty-third of 1 percent
   of proposed maximum aggregate offering price to the public:
   $8,576.04  ($309.09 previously paid)

H. Approximate date of proposed sale to the public:
                                    
         As Soon As Practicable After The Effective Date Of The
                         Registration Statement
____
/  X :/Check box if it is proposed that this filing will become effective
     on May 30, 1997 at 2:00 P.M.
     pursuant to Rule 487.


*    18,497  Units registered for primary distribution.
      9,249  Units registered for resale by Depositor of Units
             previously sold in primary distribution.
**           Estimated solely for the purpose of calculating the
             registration fee.

                    Insured Municipals Income Trust,
                       217th Insured Multi-Series
                                    
                          Cross Reference Sheet

                 Pursuant to Rule 404(c) of Regulation C
                    under the Securities Act of 1933
                                    
               (Form N-8B-2 Items Required by Instruction
                     1 as to Prospectus on Form S-6)

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

                I.  Organization and General Information

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

2. Name and address of Depositor      )  Part II-Introduction
                                      )  Part I-Summary of Essential Financial
                                      )    Information
                                      )  Part II-Trust Administration

3. Name and address of Trustee        )  Part II-Introduction
                                      )  Part I-Summary of Essential Financial
                                      )    Information
                                      )  Part II-Trust Administration

4. Name and address of principal      )  Part I-Other Matters-Underwriting
     underwriter                      )

5. Organization of trust              )  Part II-Introduction

6. Execution and termination of       )  Part II-Introduction
     Trust Indenture and Agreement    )  Part II-Trust Administration

7. Changes of Name                    )  *

8. Fiscal year                        )  *

9. Material Litigation                )  *



    II.  General Description of the Trust and Securities of the Trust

10. General information regarding     )  Part II-Introduction
      trust's securities and rights   )  Part II-Unitholder Explanations
      of security holders             )  Part II-Trust Administration

11. Type of securities comprising     )  Part II-Introduction
      units                           )  Part I-Trust Information
                                      )  Part I-Portfolios

12. Certain information regarding     )  *
      periodic payment certificates   )

13. (a)  Load, fees, charges and      )  Part II-Introduction
      expenses                        )  Part I-Summary of Essential Financial
                                      )    Information
                                      )  Part II-Unitholder Explanations
                                      )  Part I-Trust Information
                                      )  Part II-Trust Administration

    (b)  Certain information regard-  )  *
           ing periodic payment plan  )
           certificates               )

    (c)  Certain percentages          )  Part I-Summary of Essential Financial
                                      )    Information
                                      )  Part II-Unitholder Explanations

    (d)  Certain other fees,          )  Part II-Unitholder Explanations
           expenses or charges        )  Part II-Trust Administration
           payable by holders         )

    (e)  Certain profits to be        )  Part II-Unitholder Explanations
           received by depositor,     )  Part I-Other Matters-Underwriting
           principal underwriter,     )  Part I-Notes to Portfolios
           trustee or affiliated      )
           persons                    )

    (f)  Ratio of annual charges      )  *
           to income                  )

14. Issuance of trust's securities    )  Part II-Unitholder Explanations

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

16. Acquisition and disposition of    )  Part II-Introduction
      underlying securities           )  Part II-Unitholder Explanations
                                      )  Part II-Trust Administration

17. Withdrawal or redemption          )  Part II-Unitholder Explanations
                                      )  Part II-Trust Administration

18. (a)  Receipt and disposition      )  Part II-Introduction
      of income                       )  Part II-Unitholder Explanations

    (b)  Reinvestment of distribu-    )  *
           tions                      )

    (c)  Reserves or special funds    )  Part II-Unitholder Explanations
                                      )  Part II-Trust Administration

    (d)  Schedule of distributions    )  *

19. Records, accounts and reports     )  Part II-Unitholder Explanations
                                      )  Part II-Trust Administration

20. Certain miscellaneous provisions  )  Part II-Trust Administration
      of Trust Agreement              )

21. Loans to security holders         )  *

22. Limitations on liability          )  Part I-Portfolios
                                      )  Part II-Trust Administration

23. Bonding arrangements              )  *

24. Other material provisions of      )  *
      trust indenture or agreement    )


    III.  Organization, Personnel and Affiliated Persons of Depositor

25. Organization of Depositor         )  Part II-Trust Administration

26. Fees received by Depositor        )  Part II-Trust Administration

27. Business of Depositor             )  Part II-Trust Administration

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

29. Companies owning securities of    )  *
      Depositor                       )

30. Controlling persons of Depositor  )  *

31. Compensation of Directors         )  *

32. Compensation of Directors         )  *

33. Compensation of Employees         )  *

34. Compensation to other persons     )  Part II-Unitholder Explanations


             IV.  Distribution and Redemption of Securities

35. Distribution of trust's           )  Part II-Introduction
      securities by states            )  Part II-Settlement of Bonds in the
                                             Trusts

36. Suspension of sales of trust's    )  *
      securities                      )

37. Revocation of authority to        )  *
      distribute                      )

38. (a)  Method of distribution       )

    (b)  Underwriting agreements      )  Part II-Unitholder Explanations

    (c)  Selling agreements           )

39. (a)  Organization of principal    )
           underwriter                )
                                      )  Part II-Trust Administration
    (b)  N.A.S.D. membership by       )
           principal underwriter      )

40. Certain fees received by          )  *
      principal underwriter           )

41. (a)  Business of principal        )  Part II-Trust Administration
      underwriter                     )

    (b)  Branch offices of principal  )  *
      underwriter                     )

    (c)  Salesmen of principal        )  *
      underwriter                     )

42. Ownership of securities of the    )  *
      trust                           )

43. Certain brokerage commissions     )
      received by principal           )  *
      underwriter                     )

44. (a)  Method of valuation          )  Part II-Introduction
                                      )  Part I-Summary of Essential Financial
                                      )    Information
                                      )  Part II-Unitholder Explanations
                                      )  Part II-Trust Administration

    (b)  Schedule as to offering      )  *
           price                      )

    (c)  Variation in offering price  )  Part II-Unitholder Explanations
           to certain persons         )

45. Suspension of redemption rights   )  *

46. (a)  Redemption valuation         )  Part II-Unitholder Explanations
                                      )  Part II-Trust Administration

    (b)  Schedule as to redemption    )  *
      price                           )

47. Purchase and sale of interests    )  Part II-Unitholder Explanations
      in underlying securities        )  Part II-Trust Administration


           V.  Information Concerning the Trustee or Custodian

48. Organization and regulation of    )  Part II-Trust Administration
      trustee                         )

49. Fees and expenses of trustee      )  Part I-Summary of Essential Financial
                                      )    Information
                                      )  Part II-Trust Administration

50. Trustee's lien                    )  Part II-Trust Administration


     VI.  Information Concerning Insurance of Holders of Securities

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


                       VII.  Policy of Registrant

52. (a)  Provisions of trust agree-   )
           ment with respect to       )
           replacement or elimi-      )  Part II-Trust Administration
           nation of portfolio        )
           securities                 )

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

    (c)  Policy regarding substitu-   )  Part II-Trust Administration
           tion or elimination of     )
           underlying securities      )

    (d)  Fundamental policy not       )  *
           otherwise covered          )

53. Tax Status of trust               )  Part I-Trust Information
                                      )  Part II-Federal Tax Status


              VIII.  Financial and Statistical Information

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

55.                                   )
                                      )

56. Certain information regarding     )  *
                                      )

57. Periodic payment certificates     )

58.                                   )

59. Financial statements (Instruc-    )  Part I-Other Matters
      tions 1(c) to Form S-6)         )

__________________________________
* Inapplicable, omitted, answer negative or not required



   
May 30, 1997
    
                     Van Kampen American Capital

                        Prospectus Part I

 



   
Insured Municipals Income Trust, 217th Insured Multi-Series

              
IM-IT 389                   Michigan IM-IT 145    Ohio IM-IT 107   
U.S. Territorial IM-IT 1                                           
    


This Part I of the Prospectus may not be distributed unless accompanied by
Part II. Both parts of this Prospectus should be retained for future reference.

   
In the opinion of counsel, interest to the Fund and to Unitholders, with
certain exceptions, is excludable under existing law from gross income for
Federal income taxes. In addition, the interest income of each State Trust is,
in the opinion of counsel, exempt to the extent indicated from state and local
taxes, when held by residents of the state where the issuers of Bonds in such
Trust are located. Further, in the opinion of bond counsel to the respective
issuers, the interest income of each Bond in the U.S. Territorial IM-IT Trust
is exempt from state, Commonwealth of Puerto Rico and local income taxation.
Capital gains, if any, are subject to Federal tax.

The Fund. The objectives of the Fund are Federal and, in the case of a State
Trust, state tax-exempt income and conservation of capital through an
investment in a diversified portfolio of tax-exempt bonds. The Fund consists
of four underlying separate unit investment trusts designated as Insured
Municipals Income Trust, Series 389 (the "IM-IT Trust"), U.S.
Territorial Insured Municipals Income Trust, Series 1 (the "U.S.
Territorial IM-IT Trust"), Michigan Insured Municipals Income Trust,
Series 145 (the "Michigan IM-IT Trust") and Ohio Insured Municipals
Income Trust, Series 107 (the "Ohio IM-IT Trust"). The various trusts
are collectively referred to herein as the "Trusts" or the "
Insured Trusts". The Michigan IM-IT and Ohio IM-IT Trusts are sometimes
collectively referred to herein as the "State Trusts". Each Trust
initially consists of delivery statements relating to contracts to purchase
securities and, thereafter, will consist of such securities as may continue to
be held (the "Bonds" or "Securities"). Such Securities are
interest-bearing obligations issued by or on behalf of municipalities and
other governmental authorities, the interest on which is, in the opinion of
recognized bond counsel to the issuing governmental authority, exempt from all
Federal income taxes under existing law. In addition, the interest income of
each State Trust is, in the opinion of counsel, exempt to the extent indicated
from state and local taxes, when held by residents of the state where the
issuers of Bonds in such Trust are located. Further, in the opinion of bond
counsel to the respective issuers, the interest income of each Bond in the
U.S. Territorial IM-IT Trust is exempt from state, Commonwealth of Puerto Rico
and local income taxation.
    

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.


   
<TABLE>
                      INSURED MUNICIPALS INCOME TRUST,
                         217th Insured Multi-Series
At the Close of Business on the day before the Date of Deposit: May 29,1997
           (except for the IM-IT as of 8:00 A.M. Central Time
                on the Date of Deposit: May 30, 1997)                                           
Sponsor:      Van Kampen American Capital Distributors, Inc.   
Evaluator:    American Portfolio Evaluation Services           
              (A division of an affiliate of the Sponsor)      
Trustee:      The Bank of New York                             


<CAPTION>
                                                                                          U.S.                                     
                                                                                          Territorial   Michigan      Ohio IM-IT   
GENERAL INFORMATION                                                         IM-IT Trust   IM-IT Trust   IM-IT  Trust  Trust        
                                                                            ------------- ------------- ------------- -------------
<S>                                                                         <C>           <C>           <C>           <C>          
Principal Amount (Par Value) of Securities in Trust <F1>................... $   9,295,000 $   3,000,000 $   3,010,000 $   3,165,000
Number of Units............................................................         9,292         3,037         3,008         3,160
Fractional Undivided Interest in the Trust per Unit .......................       1/9,292       1/3,037       1/3,008       1/3,160
Principal Amount (Par Value) of Securities per Unit........................ $    1,000.32 $      987.82 $    1,000.66 $    1,001.58
Public Offering Price: ....................................................                                                        
 Aggregate Offering Price of Securities in Portfolio....................... $   8,836,732 $   2,888,198 $   2,860,619 $   3,005,171
 Aggregate Offering Price of Securities per Unit........................... $      951.00 $      951.00 $      951.00 $      951.00
 Sales Charge <F2>......................................................... $       49.00 $       49.00 $       49.00 $       49.00
 Public Offering Price per Unit <F3>....................................... $    1,000.00 $    1,000.00 $    1,000.00 $    1,000.00
Redemption Price per Unit <F3>............................................. $      943.65 $      943.60 $      943.53 $      943.64
Secondary Market Repurchase Price per Unit <F3>............................ $      951.00 $      951.00 $      951.00 $      951.00
Excess of Public Offering Price per Unit Over Redemption Price per Unit.... $       56.35 $       56.40 $       56.47 $       56.36
Excess of Sponsor's Initial Repurchase Price per Unit Over Redemption                                                              
Price per Unit............................................................. $        7.35 $        7.40 $        7.47 $        7.36
Minimum Value of the Trust under which Trust Agreement may be terminated... $   1,859,000 $     600,000 $     602,000 $     633,000
</TABLE>



<TABLE>
<CAPTION>
<S>                                  <C>                                          
First Settlement Date................June 4, 1997                                 
Evaluator's Annual Supervisory Fee...Maximum of $0.25 per Unit                    
Evaluator's Annual Evaluation Fee....$0.30 per $1,000 principal amount of Bonds   
Evaluation Time......................4:00 p.m. Eastern Time                       


   

- ----------
<FN>
<F1>Because certain of the Securities in certain Trusts may from time to time
under certain circumstances be sold or redeemed or will be called or mature in
accordance with their terms (including the call or sale of zero coupon bonds
at prices less than par value), there is no guarantee that the value of each
Unit at the respective Trust's termination will be equal to the Principal
Amount (Par Value) of Securities per Unit stated above.

<F2>Sales charges for the Trusts, expressed as a percentage of the Public Offering
Price per Unit and as a percentage of the aggregate offering price of the
Securities are set forth under "Unitholder Explanations--Public
Offering--General" in Part II of this Prospectus. Notwithstanding anything
to the contrary in Part II of this Prospectus, employees, officers and
directors (including their spouses, children, grandchildren, parents,
grandparents, siblings, mothers-in-law, fathers-in-law, sons-in-law and
daughters-in-law, and trustees, custodians or fiduciaries for the benefit of
such persons (collectively referred to herein as "related purchasers" 
)) of Van Kampen American Capital Distributors, Inc. and its affiliates and
Underwriters and their affiliates may purchase Units at the Public Offering
Price less the applicable underwriting commission or less the applicable
dealer concession in the absence of an underwriting commission and employees,
officers and directors (including related purchasers) of dealers and their
affiliates and vendors providing services to the Sponsor may purchase Units at
the Public Offering Price less the applicable dealer concession.

<F3>Anyone ordering Units for settlement after the First Settlement Date will pay
accrued interest from such date to the date of settlement (normally three
business days after order) less distributions from the Interest Account
subsequent to the First Settlement Date. For purchases settling on the First
Settlement Date, no accrued interest will be added to the Public Offering
Price. After the initial offering period, the Sponsor's Repurchase Price per
Unit will be determined as described under the caption "Unitholder
Explanations--Public Offering--Market for Units" in Part II of this
Prospectus.
</TABLE>
    


   
IM-IT   

- --------------------------------------------------------------------------
General. The IM-IT consists of 15 issues of Securities. Two of the Bonds in
the IM-IT are general obligations of the governmental entities issuing them
and are backed by the taxing power thereof. The remaining issues are payable
from the income of a specific project or authority and are not supported by
the issuer's power to levy taxes. These issues are located in 11 states or
territories, divided by purpose of issues (and percentage of principal amount
to total IM-IT) as follows: Health Care, 3 (27%); Public Building, 3 (23%);
Higher Education, 3 (19%); Airport, 2 (16%); General Obligation, 2 (9%); Water
and Sewer, 1 (5%) and Retail Electric/Gas/Telephone, 1 (1%). No Bond issue has
received a provisional rating. The dollar weighted average maturity of the
Bonds in the Trust is 27 years.

Tax Status. For a discussion of the Federal tax status of income earned on
IM-IT Trust Units, see "Federal Tax Status" in Part II of this
Prospectus.  



<TABLE>
<CAPTION>
Per Unit Information:                                                         Semi-     
                                                                 Monthly      Annual    
                                                                ------------ -----------
<S>                                                             <C>          <C>        
Calculation of Estimated Net Annual Unit Income:                                        
 Estimated Annual Interest Income per Unit..................... $     54.07  $    54.07 
 Less: Estimated Annual Expense per Unit <F1>.................. $      2.15  $     1.67 
 Less: Annual Premium on Portfolio Insurance per Unit..........          --          -- 
 Estimated Net Annual Interest Income per Unit................. $     51.92  $    52.40 
Calculation of Estimated Interest Earnings per Unit:                                    
 Estimated Net Annual Interest Income per Unit................. $     51.92  $    52.40 
 Divided by 12 and 2, respectively............................. $      4.32  $    26.20 
Estimated Daily Rate of Net Interest Accrual per Unit.......... $    .14422  $   .14555 
Estimated Current Return Based on Public Offering Price <F2>...        5.19%       5.24%
Estimated Long-Term Return <F2>................................        5.26%       5.31%
Estimated Initial Monthly Distribution (July 1997)............. $      5.19             
Estimated Initial Semi-annual Distribution (December 1997).....              $    27.07 
Estimated Normal Distribution per Unit <F2>.................... $      4.32  $    26.20 
</TABLE>


 

<TABLE>
<CAPTION>
<S>                             <C>                                                                                                
Trustee's Annual Fee <F3>...... $.91 and $.51 per $1,000 principal amount of Bonds, respectively, for those portions of the IM-IT  
                                Trust under the monthly and semi-annual distribution plans                                         
Record and Computation Dates... TENTH day of the month as follows: monthly--each month; semi-annual--June and December             
Distribution Dates............. TWENTY-FIFTH day of the month as follows: monthly--each month; semi-annual--                       
                                June and December                                                                                  




- ----------
<FN>
<F1>Excluding insurance costs. The Estimated Annual Expenses are expected to
fluctuate periodically (see "Trust Administration--Fund Administration and
Expenses--Miscellaneous Expenses" in Part II of this Prospectus).

<F2>The Estimated Current Returns and Estimated Long-Term Returns are increased
for transactions entitled to a reduced sales charge. See "Unitholder
Explanations--Public Offering--General" in Part II of this Prospectus. For
a discussion of how these returns are calculated, see "Unitholder
Explanations--Estimated Current Returns and Estimated Long-Term Returns" 
in Part II of this Prospectus. These figures are 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 Securities. The
estimated cash flows for this Series are set forth under "Other
Matters--Estimated Cash Flows to Unitholders".

<F3>Based on the size of the Trust on the Date of Deposit and assuming all
Unitholders had chosen the semi-annual distribution plan, the Trustee's
estimated annual fees for ordinary recurring services would initially amount
to $4,740. Assuming in the alternative that all Unitholders had elected the
monthly distribution plan, such fees would initially amount to $8,458.
</TABLE>

 



<TABLE>
INSURED MUNICIPALS INCOME TRUST
SERIES 389 (217TH INSURED MULTI-SERIES)
PORTFOLIO As of May 30, 1997

<CAPTION>
                                                                                                               Offering            
                                                                                                               Price To            
Aggregate     Name of Issuer, Title, Interest Rate and Maturity Date of                   Redemption           IM-IT               
              either Bonds Deposited or Bonds Contracted for<F1><F5>          Rating<F2>  Feature<F3>          Trust<F4>           
- ------------- ------------------------------------------------------------ -------------- -------------------- -------------       
<S>           <C>                                                          <C>            <C>                  <C>             
$      75,000 Puerto Rico Electric Power Authority, Revenue Capital                                                                
              Appreciation Bonds, Series O (MBIA Insured)  #0.00% Due                                                              
              7/1/2017....................................................            AAA 2015 @ 87.06 S.F.    $      24,823<F6>   
      500,000 City of Providence, Rhode Island, General Obligation                        2007 @ 101                               
              Refunding Bonds (FSA Insured)  #5.70% Due 7/15/2019.........            AAA 2013 @ 100 S.F.            496,275       
    1,000,000 Indiana Office Building Commission, Correctional Facilities                                                          
              Program Revenue Bonds, Series 1995A (AMBAC   Indemnity                      2005 @ 102                               
              Insured)  #5.50% Due 7/1/2020...............................            AAA 2017 @ 100 S.F.            967,050       
      980,000 Iowa Finance Authority, Hospital Facilities Revenue Bonds,                                                           
              Trinity Regional Hospital Project (FSA Insured)  #5.50% Due                 2007 @ 102                               
              7/1/2022....................................................            AAA 2018 @ 100 S.F.            940,026       
      500,000 Board of Trustees of the University of Illinois, Illinois,                                                           
              Auxiliary Facilities System Revenue Bonds, Series 1996                      2006 @ 102                               
              (MBIA Insured)  #5.60% Due 10/1/2022........................            AAA 2017 @ 100 S.F.            489,265       
      300,000 Pine-Richland School District (Allegheny County,                                                                     
              Pennsylvania) General Obligation Bonds, Series 1996A (FSA                                                            
              Insured)  #0.00% Due 9/1/2023...............................            AAA                             68,073<F6>   
      900,000 Rhode Island Health and Educational Building Corporation,                                                            
              Higher Education Facility Revenue and Refunding Bonds,                                                               
              Board of Governors for Higher Education, Various Purpose                                                             
              Educational Facilities Issue, Series 1993B (MBIA Insured)                   2003 @ 102                               
              #5.25% Due 9/15/2023........................................            AAA 2014 @ 100 S.F.            832,383       
      500,000 City and County of Denver, Colorado, Airport System Revenue                 2005 @ 102                               
              Bonds, Series 1995A (MBIA Insured)  #5.70% Due 11/15/2025...            AAA 2021 @ 100 S.F.            496,925       
    1,000,000 Airport Authority of Washoe County, Reno, Nevada, Airport                                                            
              Revenue (Tax-Exempt) Bonds, Series 1996A (MBIA Insured)                     2006 @ 102                               
              #5.70% Due 7/1/2026.........................................            AAA 2017 @ 100 S.F.            991,780       
    1,000,000 Illinois Health Facilities Authority, Revenue Bonds,                                                                 
              Highland Park Hospital, Series 1997 (MBIA Insured)  #5.75%                  2007 @ 102                               
              Due 10/1/2026...............................................            AAA 2018 @ 100 S.F.            990,960       
      360,000 University of Illinois, Health Services Facilities Revenue                                                           
              Bonds, Series A (AMBAC Indemnity Insured)  #5.875% Due                      2007 @ 102                               
              10/1/2026...................................................            AAA 2019 @ 100 S.F.            362,527       
    1,000,000 Southeast Wisconsin, Professional Baseball Park District,                   2007 @ 101                               
              Sales Tax Revenue Bonds (MBIA Insured)  5.80% Due 12/15/2026            AAA 2022 @ 100 S.F.          1,005,000       
      500,000 Jefferson County, Alabama, Sewer Revenue Warrants, Series                   2007 @ 101                               
              1997D (FGIC Insured)  #5.75% Due 2/1/2027...................            AAA 2023 @ 100 S.F.            499,375       
$     500,000 Wisconsin Health and Educational Facilities Authority,                                                               
              Revenue Bonds, Series 1997 (Marshfield Clinic) MBIA Insured                 2007 @ 102                               
               #5.75% Due 2/15/2027.......................................            AAA 2018 @ 100 S.F.      $     495,445       
      180,000 City of Grand Forks, North Dakota, Sales Tax Revenue Bonds                                                           
              (The Aurora Project) Series 1997A (MBIA Insured)  #5.625%                   2007 @ 100                               
              Due 12/15/2029..............................................            AAA 2017 @ 100 S.F.            176,825       
$   9,295,000                                                                                                  $   8,836,732       
=============                                                                                                  =============       
</TABLE>

- ----------
All of the Bonds in the portfolio are insured by one of the Preinsured Bond
Insurers as indicated in the Bond name. See "Unitholder
Explanations--Insurance on the Bonds in the Insured Trusts" in Part II of
this Prospectus.

For an explanation of the footnotes used on this page, see "Notes to
Portfolios".



U.S. TERRITORIAL IM-IT TRUST   

- --------------------------------------------------------------------------
General. The U.S. Territorial IM-IT Trust consists of 5 issues of Securities.
One of the Bonds in the U.S. Territorial IM-IT Trust is a general obligation
of the governmental entity issuing it and is backed by the taxing power
thereof. The remaining issues are payable from the income of a specific
project or authority and are not supported by the issuer's power to levy
taxes. These issues are located in 1 territory, divided by purpose of issues
(and percentage of principal amount to total U.S. Territorial IM-IT Trust) as
follows: Retail Electric/Gas/Telephone, 1 (25%); General Purpose, 1 (22%);
Transportation, 1 (20%); Higher Education, 1 (17%) and General Obligation, 1
(16%). No Bond issue has received a provisional rating. The dollar weighted
average maturity of the Bonds in the Trust is 27 years. For purposes of
computing sales charges, concessions or agency commissions for broker-dealers,
Underwriter commissions and the mandatory termination date described in Part
II of this Prospectus, the U.S. Territorial IM-IT shall be treated in the same
manner as an IM-IT, State (other than a State Intermediate Laddered Maturity
Trust) or National Quality Trust. Investors should note that the Sponsor does
not intend to qualify the Units of the U.S. Territorial IM-IT for sale in all
states.

Risk Factors. Because the Trust is concentrated in bonds issued by issuers
located in Puerto Rico, an investment in Units should be made with an
understanding of factors affecting such bonds and the economy of Puerto Rico.
The economy of Puerto Rico is closely integrated with that of the mainland
United States. During fiscal 1996 approximately 88% of Puerto Rico's exports
were to the U.S. mainland, which was also the source of approximately 62% of
Puerto Rico's imports. The economy of Puerto Rico is dominated by the
manufacturing and service sectors. The manufacturing sector has experienced a
basic change over the years as a result of increased emphasis on higher wage,
high technology industries such as   pharmaceuticals, electronics, computers,
microprocessors, professional and scientific instruments, and certain high
technology machinery and equipment. The service sector, including finance,
insurance, real estate, wholesale and retail trade, and hotel and related
services, also plays a major role in the economy. It ranks second only to
manufacturing in contribution to the gross domestic product and leads all
sectors in providing employment. In recent years, the service sector has
experienced significant growth in response to the expansion of the
manufacturing sector. According to the U.S. Census   Bureau, the population of
Puerto Rico was approximately 3,522,000 in 1990 compared to 3,196,520 in 1980.
According to estimates, the population of Puerto Rico increased to 3,726,000
in fiscal 1996.

Puerto Rico's more than decade-long economic expansion continued throughout
the five-year period from fiscal 1992 through fiscal 1996. Almost every sector
of the economy participated and record levels of employment were achieved.  
Factors behind this expansion included government-sponsored economic
development programs, periodic declines in the exchange value of the U.S.
dollar, increases in the level of federal transfers and the relatively low
cost of borrowing.   Unemployment, although at relatively low historical
levels, remains above the average for the United States. Average employment
increased from 977,000 in fiscal 1992, to 1,092,300 in fiscal 1996. Average
unemployment decreased from 16.5% in fiscal 1992, to 13.8% in fiscal 1996.

Gross product in fiscal 1992 was $23.7 billion and gross product in fiscal
1996 was $30.2 billion ($26.7 billion in 1992 prices). This represents an
increase in gross product of 27.7% from fiscal 1992 to 1996 (12.9% in 1992
prices). Since fiscal 1985, personal income, both aggregate and per capita,
has increased consistently each fiscal year. In fiscal 1996, aggregate
personal income was $29.4 billion ($27.8 billion in 1992 prices) and personal
income per capita was $7,882 ($7,459 in 1992 prices).

The gross product forecast for fiscal 1997, made in February 1997, projects an
increase of 2.8% over fiscal 1996. Further growth in the Puerto Rico economy
in fiscal 1997 depends on several factors, including the strength of the U.S.
economy, the relative stability in the price of oil imports, increases in the
number of visitors to the island, the level of exports, the exchange value of
the U.S. dollar, the level of federal transfers and the cost of borrowing.
During the first seven months of fiscal 1997, total employment (seasonally
adjusted) averaged 1,129,100, compared to 1,089,000 in the same period in
fiscal 1996, an increase of 3.7%.

The Puerto Rican economy is affected by a number of Commonwealth and federal
investment incentive programs. Aid for Puerto Rico's economy has traditionally
depended heavily on federal programs, and current federal budgetary policies
suggest that an expansion of aid to Puerto Rico is unlikely. An adverse effect
on the Puerto Rican economy could result from other U.S. policies, including
further reduction in transfer payment programs such as food stamps,
curtailment of military spending and policies which could lead to a stronger
dollar. One of the factors assisting the development of the Puerto Rican
economy has been the tax incentives offered by the federal and Puerto Rico
governments. Recently enacted federal legislation amending Internal Revenue
Code Section 936, however, phases out the federal tax incentives during a
ten-year period.

     On February 26, 1997, legislation was introduced in the U.S. House of
Representatives proposing a mechanism to settle permanently the political
relationship between Puerto Rico and the United States, either through full
self government (e.g., statehood or independence, including, as an
alternative, free association via a bilateral treaty) or continued
commonwealth. Under the legislation, failure to settle on full self government
after completion of the referendum process provided therein would result in
retention of commonwealth status. Any change in the current status of Puerto
Rico could have a material adverse impact on such matters as the basic
characteristics of future Puerto Rico debt obligations, the markets for these
obligations, and the types, levels and quality of revenue sources pledged for
the payment of existing and future debt obligations. However, no assessment
can be made at this time of the economic and other effects of a change in
federal laws affecting Puerto Rico.

Tax Status. For a discussion of the Federal tax status of income earned on
U.S. Territorial IM-IT Trust Units, see "Federal Tax Status" in Part
II of this Prospectus.  



<TABLE>
<CAPTION>
Per Unit Information:                                                         Semi-     
                                                                 Monthly      Annual    
                                                                ------------ -----------
<S>                                                             <C>          <C>        
Calculation of Estimated Net Annual Unit Income:                                        
 Estimated Annual Interest Income per Unit..................... $     52.46  $    52.46 
 Less: Estimated Annual Expense per Unit <F1>.................. $      2.26  $     1.86 
 Less: Annual Premium on Portfolio Insurance per Unit..........          --          -- 
 Estimated Net Annual Interest Income per Unit................. $     50.20  $    50.60 
Calculation of Estimated Interest Earnings per Unit:                                    
 Estimated Net Annual Interest Income per Unit................. $     50.20  $    50.60 
 Divided by 12 and 2, respectively............................. $      4.18  $    25.30 
Estimated Daily Rate of Net Interest Accrual per Unit.......... $    .13943  $   .14056 
Estimated Current Return Based on Public Offering Price <F2>...        5.02%       5.06%
Estimated Long-Term Return <F2>................................        5.05%       5.09%
Estimated Initial Monthly Distribution (July 1997)............. $      5.01             
Estimated Initial Semi-annual Distribution (December 1997).....              $    26.14 
Estimated Normal Distribution per Unit <F2>.................... $      4.18  $    25.30 
</TABLE>




<TABLE>
<CAPTION>
<S>                             <C>                                                                                                
Trustee's Annual Fee <F3>...... $.91 and $.51 per $1,000 principal amount of Bonds, respectively, for those portions of the IM-IT  
                                Trust under the monthly and semi-annual distribution plans                                         
Record and Computation Dates... TENTH day of the month as follows: monthly--each month; semi-annual--June and December             
Distribution Dates............. TWENTY-FIFTH day of the month as follows: monthly--each month; semi-annual--                       
                                June and December                                                                                  




- ----------
<FN>
<F1>Excluding insurance costs. The Estimated Annual Expenses are expected to
fluctuate periodically (see "Trust Administration--Fund Administration and
Expenses--Miscellaneous Expenses" in Part II of this Prospectus).

<F2>The Estimated Current Returns and Estimated Long-Term Returns are increased
for transactions entitled to a reduced sales charge. See "Unitholder
Explanations--Public Offering--General" in Part II of this Prospectus. For
a discussion of how these returns are calculated, see "Unitholder
Explanations--Estimated Current Returns and Estimated Long-Term Returns" 
in Part II of this Prospectus. These figures are 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 Securities. The
estimated cash flows for this Series are set forth under "Other
Matters--Estimated Cash Flows to Unitholders".

<F3>Based on the size of the Trust on the Date of Deposit and assuming all
Unitholders had chosen the semi-annual distribution plan, the Trustee's
estimated annual fees for ordinary recurring services would initially amount
to $1,530. Assuming in the alternative that all Unitholders had elected the
monthly distribution plan, such fees would initially amount to $2,730.
</TABLE>





<TABLE>
U.S. TERRITORIAL INSURED MUNICIPALS INCOME TRUST
SERIES 1 (217TH INSURED MULTI-SERIES)
PORTFOLIO As of May 30, 1997

<CAPTION>
                                                                                                                     Offering      
                                                                                                                     Price To      
                                                                                                                     U.S.          
                                                                                                                     Territorial   
Aggregate     Name of Issuer, Title, Interest Rate and Maturity Date of either                    Redemption         IM-IT         
              Bonds Deposited or Bonds Contracted for<F1><F5>                         Rating<F2>  Feature<F3>        Trust<F4>     
- ------------- -------------------------------------------------------------------- -------------- ------------------ ------------- 
<S>           <C>                                                                  <C>            <C>                <C>           
$     650,000 Puerto Rico Municipal Finance Agency, Revenue Bonds, Series A (FSA                  2007 @ 101.5                     
              Insured)  #5.50% Due 7/1/2021.......................................            AAA 2018 @ 100 S.F.    $     644,677 
      600,000 Puerto Rico Highway and Transportation Authority, Highway Revenue                                                    
              Refunding Bonds (Series X) MBIA Insured  #5.00% Due 7/1/2022........            AAA 2003 @ 101.5             553,266 
      500,000 University of Puerto Rico, University Revenue Bonds, Series 1995M                   2005 @ 101.5                     
              (MBIA Insured)  #5.25% Due 6/1/2025.................................            AAA 2016 @ 100 S.F.          477,905 
      500,000 Commonwealth of Puerto Rico, General Obligation Bonds   (FSA                        2006 @ 101.5                     
              Insured)  #5.40% Due 7/1/2025.......................................            AAA 2018 @ 100 S.F.          487,265 
      750,000 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series                   2007 @ 101.5                     
              AA (MBIA Insured)  #5.375% Due 7/1/2027.............................            AAA 2024 @ 100 S.F.          725,085 
$   3,000,000                                                                                                        $   2,888,198 
=============                                                                                                        ============= 
</TABLE>

- ----------
All of the Bonds in the portfolio are insured by one of the Preinsured Bond
Insurers as indicated in the Bond name. See "Unitholder
Explanations--Insurance on the Bonds in the Insured Trusts" in Part II of
this Prospectus.

For an explanation of the footnotes used on this page, see "Notes to
Portfolios".




MICHIGAN IM-IT TRUST 

- --------------------------------------------------------------------------
General. The Michigan IM-IT Trust consists of 10 issues of Securities. Five of
the Bonds in the Michigan IM-IT Trust are general obligations of the
governmental entities issuing them and are backed by the taxing power thereof.
The remaining issues are payable from the income of a specific project or
authority and are not supported by the issuer's power to levy taxes. These
issues are divided by purpose of issues (and percentage of principal amount to
total Michigan IM-IT Trust) as follows: General Obligation, 5 (65%); Health
Care, 1 (16%); Higher Education, 2 (13%); Transportation, 1 (5%) and Retail
Electric/Gas/Telephone, 1 (1%). No Bond issue has received a provisional
rating.

Risk Factors. Investors should be aware that the economy of the State of
Michigan has, in the past, proven to be cyclical, due primarily to the fact
that the leading sector of the State's economy is the manufacturing of durable
goods. While the State's efforts to diversify its economy have proven
successful, as reflected by the fact that the share of employment in the State
in the durable goods sector has fallen from 33.1 percent in 1960 to 17.9
percent in 1990, durable goods manufacturing still represents a sizable
portion of the State's economy. As a result, any substantial national economic
downturn is likely to have an adverse effect on the economy of the State and
on the revenues of the State and some of its local governmental units. 

In July 1995, Moody's Investors Service, Inc. raised the State's general
obligation bond rating to "Aa". In October 1989, Standard & Poor's
raised its rating on the State's general obligation bonds to "AA". 

The State's economy could continue to be affected by changes in the auto
industry, notably consolidation and plant closings resulting from competitive
pressures and over-capacity. Such actions could adversely affect State
revenues and the financial impact on the local units of government in the
areas in which plants are closed could be more severe. In addition, as
described in the State's comprehensive annual financial report on file with
the Nationally Recognized Municipal Securities Information Repositories, the
State is party to a number of lawsuits and legal actions, some of which, if
determined adversely to the State, could have a materially adverse impact on
the State's finances.

In recent years, the State has reported its financial results in accordance
with generally accepted accounting principles. For the fiscal year ended
September 30, 1991, the State reported a negative year-end balance in the
General Fund/School Aid Fund of $169.4 million. The State ended each of the
1992, 1993, 1994, 1995 and 1996 fiscal years with its General Fund/School Aid
Fund in balance, after having made substantial transfers to the Budget
Stabilization Fund in 1993, 1994, 1995 and 1996. In the 1991 through 1993
fiscal years, the State experienced deteriorating cash balances which
necessitated short-term borrowing and the deferral of certain scheduled cash
payments. The State did not borrow for cash flow purposes in 1994, but
borrowed $500 million on March 9, 1995, which was repaid on September 29, 1995
and $900 million on February 20, 1996, which was repaid on September 30, 1996.
The State borrowed $900 million in December of 1996, with a maturity date of
September 30, 1997. The State's Budget Stabilization Fund received transfers
of $283 million in 1993, $464 million in 1994, $320 million in 1995 and $91.3
million in 1996, bringing the balance in the Budget Stabilization Fund, after
making certain transfers out, to $1.15 billion at September 30, 1996.

The Michigan Constitution of 1963 limits the amount of total revenues of the
State raised from taxes and certain other sources to a level for each fiscal
year equal to a percentage of the State's personal income for the prior
calendar year. In the event that the State's total revenues exceeds the limit
by 1 percent or more, the Michigan Constitution of 1963 requires that the
excess be refunded to taxpayers. 

On March 15, 1994, Michigan voters approved a school finance reform amendment
to the State's Constitution which, among other things, increased the State
sales tax rate from 4% to 6% and placed a cap on property assessment increases
for all property taxes. Concurrent legislation cut the State's income tax rate
from 4.6% to 4.4%, reduced some property taxes and altered local school
funding sources to a combination of property taxes and state revenues, some of
which is provided from other new or increased State taxes. The legislation
also contained other provisions that alter (and, in some cases, may reduce)
the revenues of local units of government, and tax increment bonds could be
particularly affected. While the ultimate impact of the constitutional
amendment and related legislation cannot yet be accurately predicted,
investors should be alert to the potential effect of such measures upon the
operations and revenues of Michigan local units of government. 

In addition, the State Legislature recently adopted a package of state tax
cuts, including a phase out of the intangibles tax, an increase in exemption
amounts for personal income tax, and reductions in single business tax.

Although all or most of the Bonds in the Michigan IM-IT Trust are revenue
obligations or general obligations of local governments or authorities rather
than general obligations of the State of Michigan itself, there can be no
assurance that any financial difficulties the State may experience will not
adversely affect the market value or marketability of the Bonds or the ability
of the respective obligors to pay interest on or principal of the Bonds,
particularly in view of the dependency of local governments and other
authorities upon State aid and reimbursement programs and, in the case of
bonds issued by the State Building Authority, the dependency of the State
Building Authority on the receipt of rental payments from the State to meet
debt service requirements upon such bonds. In the 1991 fiscal year, the State
deferred certain scheduled cash payments to municipalities, school districts,
universities and community colleges. While such deferrals were made up at
specified later dates, similar future deferrals could have an adverse impact
on the cash position of some local governmental units. Additionally, while
total State revenue sharing payments have increased in each of the last five
years, the State did reduce revenue sharing payments to municipalities below
that level otherwise provided under formulas in each of those years.

The Michigan IM-IT Trust may contain general obligation bonds of local units
of government pledging the full faith and credit of the local unit which are
payable from the levy of ad valorem taxes on taxable property within the
jurisdiction of the local unit. Such bonds issued prior to December 22, 1978,
or issued after December 22, 1978 with the approval of the electors of the
local unit, are payable from property taxes levied without limitation as to
rate or amount. With respect to bonds issued after December 22, 1978, and
which were not approved by the electors of the local unit, the tax levy of the
local unit for debt service purposes is subject to constitutional, statutory
and charter tax rate limitations. In addition, several major industrial
corporations have instituted challenges of their ad valorem property tax
assessments in a number of local municipal units in the State. If successful,
such challenges could have an adverse impact on the ad valorem tax bases of
such units which could adversely affect their ability to raise funds for
operation and debt service requirements. 

Tax Status. For a discussion of the Federal tax status of income earned on
Michigan IM-IT Trust Units, see "Federal Tax Status" in Part II of
this Prospectus. 

In the opinion of Miller, Canfield, Paddock and Stone, P.L.C., special counsel
to the Fund for Michigan tax matters, under existing Michigan law: 

The Michigan IM-IT Trust and the owners of Units will be treated for purposes
of the Michigan income tax laws and the Single Business Tax in substantially
the same manner as they are for purposes of the Federal income tax laws, as
currently enacted. Accordingly, we have relied upon the opinion of Messrs.
Chapman and Cutler as to the applicability of Federal income tax under the
Internal Revenue Code of 1986 to the Michigan IM-IT Trust and the Unitholders. 

Under the income tax laws of the State of Michigan, the Michigan IM-IT Trust
is not an association taxable as a corporation; the income of the Michigan
IM-IT Trust will be treated as the income of the Unitholders and be deemed to
have been received by them when received by the Michigan IM-IT Trust. Interest
on the underlying Bonds which is exempt from tax under these laws when
received by Michigan IM-IT Trust will retain its status as tax exempt interest
to the Unitholders. 

For purposes of the foregoing Michigan tax laws, each Unitholder will be
considered to have received his pro rata share of Bond interest when it is
received by the Michigan IM-IT Trust, and each Unitholder will have a taxable
event when the Michigan IM-IT Trust disposes of a Bond (whether by sale,
exchange, redemption or payment at maturity) or when the Unitholder redeems or
sells his Certificate to the extent the transaction constitutes a taxable
event for Federal income tax purposes. The tax cost of each unit to a
Unitholder will be established and allocated for purposes of these Michigan
tax laws in the same manner as such cost is established and allocated for
Federal income tax purposes. 

Under the Michigan Intangibles Tax, the Michigan IM-IT Trust is not taxable
and the pro rata ownership of the underlying Bonds, as well as the interest
thereon, will be exempt to the Unitholders to the extent the Michigan IM-IT
Trust consists of obligations of the State of Michigan or its political
subdivisions or municipalities, or of obligations of possessions of the United
States. The Intangibles Tax is being phased out, with reductions of
twenty-five percent (25%) in 1994 and 1995, fifty percent (50%) in 1996, and
seventy-five percent (75%) in 1997, with total repeal effective January 1,
1998. 

The Michigan Single Business Tax replaced the tax on corporate and financial
institution income under the Michigan Income Tax, and the Intangible Tax with
respect to those intangibles of persons subject to the Single Business Tax the
income from which would be considered in computing the Single Business Tax.
Persons are subject to the Single Business Tax only if they are engaged in
"business activity", as defined in the Act. Under the Single Business
Tax, both interest received by the Michigan IM-IT Trust on the underlying
Bonds and any amount distributed from the Michigan IM-IT Trust to a
Unitholder, if not included in determining taxable income for Federal income
tax purposes, is also not included in the adjusted tax base upon which the
Single Business Tax is computed, of either the Michigan IM-IT Trust or the
Unitholders. If the Michigan IM-IT Trust or the Unitholders have a taxable
event for Federal income tax purposes when the Michigan IM-IT Trust disposes
of a Bond (whether by sale, exchange, redemption or payment at maturity) or
the Unitholder redeems or sells his Certificate, an amount equal to any gain
realized from such taxable event which was included in the computation of
taxable income for Federal income tax purposes (plus an amount equal to any
capital gain of an individual realized in connection with such event but
excluded in computing that individual's Federal taxable income) will be
included in the tax base against which, after allocation, apportionment and
other adjustments, the Single Business Tax is computed. The tax base will be
reduced by an amount equal to any capital loss realized from such a taxable
event, whether or not the capital loss was deducted in computing Federal
taxable income in the year the loss occurred. Unitholders should consult their
tax advisor as to their status under Michigan law. 

Any proceeds paid under an insurance policy issued to the Trustee of the
Trust, or paid under individual policies obtained by issuers of Bonds, which,
when received by the Unitholders, represent maturing interest on defaulted
obligations held by the Trustee, will be excludable from the Michigan income
tax laws and the Single Business Tax if, and to the same extent as, such
interest would have been so excludable if paid by the issuer of the defaulted
obligations. While treatment under the Michigan Intangibles Tax is not
premised upon the characterization of such proceeds under the Internal Revenue
Code, the Michigan Department of Treasury should adopt the same approach as
under the Michigan income tax laws and the Single Business Tax. 

As the Tax Reform Act of 1986 eliminates the capital gain deduction for tax
years beginning after December 31, 1986, the federal adjusted gross income,
the computation base for the Michigan Income Tax, of a Unitholder will be
increased accordingly to the extent such capital gains are realized when the
Michigan IM-IT Trust disposes of a Bond or when the Unitholder redeems or
sells a Unit, to the extent such transaction constitutes a taxable event for
Federal income tax purposes.

 



<TABLE>
<CAPTION>
Per Unit Information:                                                         Semi-     
                                                                 Monthly      Annual    
                                                                ------------ -----------
<S>                                                             <C>          <C>        
Calculation of Estimated Net Annual Unit Income:                                        
 Estimated Annual Interest Income per Unit..................... $     53.25  $    53.25 
 Less: Estimated Annual Expense per Unit <F1>.................. $      2.35  $     1.93 
 Less: Annual Premium on Portfolio Insurance per Unit..........          --          -- 
 Estimated Net Annual Interest Income per Unit................. $     50.90  $    51.32 
Calculation of Estimated Interest Earnings per Unit:                                    
 Estimated Net Annual Interest Income per Unit................. $     50.90  $    51.32 
 Divided by 12 and 2, respectively............................. $      4.24  $    25.66 
Estimated Daily Rate of Net Interest Accrual per Unit.......... $    .14138  $   .14254 
Estimated Current Return Based on Public Offering Price <F2>...        5.09%       5.13%
Estimated Long-Term Return <F2>................................        5.14%       5.19%
Estimated Initial Monthly Distribution (July 1997)............. $      5.08             
Estimated Initial Semi-annual Distribution (July 1997).........              $     5.13 
Estimated Normal Distribution per Unit <F2>.................... $      4.24  $    25.66 
</TABLE>






<TABLE>
<CAPTION>
<S>                             <C>                                                                                            
Trustee's Annual Fee <F3>...... $.91 and $.51 per $1,000 principal amount of Bonds, respectively, for those portions of the    
                                Michigan IM-IT Trust under the monthly and semi-annual distribution plans                      
Record and Computation Dates... TENTH day of the month as follows: monthly--each month; semi-annual--January and July          
Distribution Dates............. TWENTY-FIFTH day of the month as follows: monthly--each month; semi-annual--                   
                                January and July                                                                               




- ----------
<FN>
<F1>Excluding insurance costs. The Estimated Annual Expenses are expected to
fluctuate periodically (see "Trust Administration--Fund Administration and
Expenses--Miscellaneous Expenses" in Part II of this Prospectus).

<F2>The Estimated Current Returns and Estimated Long-Term Returns are increased
for transactions entitled to a reduced sales charge. See "Unitholder
Explanations--Public Offering--General" in Part II of this Prospectus. For
a discussion of how these returns are calculated, see "Unitholder
Explanations--Estimated Current Returns and Estimated Long-Term Returns" 
in Part II of this Prospectus. These figures are 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 Securities. The
estimated cash flows for this Series are set forth under "Other
Matters--Estimated Cash Flows to Unitholders".

<F3>Based on the size of the Trust on the Date of Deposit and assuming all
Unitholders had chosen the semi-annual distribution plan, the Trustee's
estimated annual fees for ordinary recurring services would initially amount
to $1,535. Assuming in the alternative that all Unitholders had elected the
monthly distribution plan, such fees would initially amount to $2,739.
</TABLE>





<TABLE>
MICHIGAN INSURED MUNICIPALS INCOME TRUST
SERIES 145 (217TH INSURED MULTI-SERIES)
PORTFOLIO As of May 30, 1997

<CAPTION>
                                                                                                               Offering            
                                                                                                               Price To            
                                                                                                               Michigan            
Aggregate     Name of Issuer, Title, Interest Rate and Maturity Date of                   Redemption           IM-IT               
              either Bonds Deposited or Bonds Contracted for<F1><F5>          Rating<F2>  Feature<F3>          Trust<F4>           
- ------------- ------------------------------------------------------------ -------------- -------------------- -------------       
<S>           <C>                                                          <C>            <C>                  <C>             
$      25,000 Puerto Rico Electric Power Authority, Revenue Capital                                                                
              Appreciation Bonds, Series O (MBIA Insured)  #0.00% Due                                                              
              7/1/2017....................................................            AAA 2015 @ 87.06 S.F.    $       8,273<F6>   
      250,000 Brandon School District in the Counties of Oakland and                                                               
              Lapeer, Michigan, 1996 School Building and Site Bonds                                                                
              (General Obligation-Unlimited Tax) FGIC Insured  #5.75% Due                 2006 @ 101                               
              5/1/2020....................................................            AAA 2017 @ 100 S.F.            252,170       
      500,000 City of Detroit, Michigan, Downtown Development, Limited                                                             
              Tax General Obligation Bonds, Series 1997 (AMBAC                            2007 @ 101                               
              Indemnity Insured)  #5.625% Due 7/15/2020...................            AAA 2016 @ 100 S.F.            494,520       
      500,000 Chippewa Valley Schools, County of Macomb, Michigan, 1993                                                            
              Refunding Bonds (General Obligation-Unlimited Tax)   FGIC                   2003 @ 102                               
              Insured  #5.00% Due 5/1/2021................................            AAA 2014 @ 100 S.F.            452,820       
      150,000 Board of Trustees of Western Michigan University, Michigan,                                                          
              General Revenue Bonds, Series 1993A (FGIC Insured)  #5.00%                  2003 @ 102                               
              Due 7/15/2021...............................................            AAA 2018 @ 100 S.F.            135,786       
      500,000 Michigan Hospital Finance Authority, Hospital Revenue                                                                
              Refunding Bonds (Sisters of Mercy Health Corporation                                                                 
              Obligated Group) Series 1993P (MBIA Insured)  #5.25% Due                    2003 @ 102                               
              8/15/2021...................................................            AAA 2015 @ 100 S.F.            466,925       
      195,000 Cadillac Area Public Schools, Counties of Wexford, Osceola                                                           
              and Lake, Michigan, 1996 School Building and Site Bonds                                                              
              (General Obligation-Unlimited Tax) FGIC Insured  #5.50% Due                 2006 @ 100                               
              5/1/2022....................................................            AAA 2018 @ 100 S.F.            190,808       
      250,000 Central Michigan University, Board of Trustees, Michigan,                                                            
              General Revenue Bonds, Series 1997 (FGIC Insured)  #5.625%                  2007 @ 101                               
              Due 10/1/2022...............................................            AAA 2018 @ 100 S.F.            248,730       
      500,000 Hancock Public Schools, County of Houghton, Michigan, 1996                                                           
              School Building and Site Bonds (General                                     2006 @ 100                               
              Obligation-Unlimited Tax) MBIA Insured  #5.25% Due 5/1/2026.            AAA 2021 @ 100 S.F.            471,385       
      140,000 State of Michigan, State Trunk Line Fund, Revenue Bonds,                    2006 @ 101                               
              Series 1996A (FGIC Insured)  #5.625% Due 11/1/2026..........            AAA 2021 @ 100 S.F.            139,202       
$   3,010,000                                                                                                  $   2,860,619       
=============                                                                                                  =============       
</TABLE>

- ----------
All of the Bonds in the portfolio are insured by one of the Preinsured Bond
Insurers as indicated in the Bond name. See "Unitholder
Explanations--Insurance on the Bonds in the Insured Trusts" in Part II of
this Prospectus.

For an explanation of the footnotes used on this page, see "Notes to
Portfolios".




OHIO IM-IT TRUST   

- --------------------------------------------------------------------------
General. The Ohio IM-IT Trust consists of 9 issues of Securities. Two of the
Bonds in the Ohio IM-IT Trust are general obligations of the governmental
entities issuing them and are backed by the taxing power thereof. The
remaining issues are payable from the income of a specific project or
authority and are not supported by the issuer's power to levy taxes. These
issues are divided by purpose of issues (and percentage of principal amount to
total Ohio IM-IT Trust) as follows: Health Care, 2 (31%); General Obligation,
2 (19%); Certificate of Participation, 1 (16%); Higher Education, 1 (16%);
Water and Sewer, 2 (12%) and Transportation, 1 (6%). No Bond issue has
received a provisional rating.

Risk Factors. As described above, the Ohio IM-IT will invest most of its net
assets in securities issued by or on behalf of (or in certificates of
participation in lease-purchase obligations of) the State of Ohio, political
subdivisions of the State, or agencies or instrumentalities of the State or
its political subdivisions ("Ohio Obligations"). The Ohio IM-IT is
therefore susceptible to general or particular economic, political or
regulatory factors that may affect issuers of Ohio Obligations. The following
information constitutes only a brief summary of some of the many complex
factors that may have an effect. The information does not apply to "
conduit" obligations on which the public issuer itself has no financial
responsibility. This information is derived from official statements of
certain Ohio issuers published in connection with their issuance of securities
and from other publicly available information, and is believed to be accurate.
No independent verification has been made of any of the following information. 

Generally, creditworthiness of Ohio Obligations of local issuers is unrelated
to that of obligations of the State itself, and the State has no
responsibility to make payments on those local obligations. There may be
specific factors that at particular times apply in connection with investment
in particular Ohio Obligations or in those obligations of particular Ohio
issuers. It is possible that the investment may be in particular Ohio
Obligations, or in those of particular issuers, as to which those factors
apply. However, the information below is intended only as a general summary,
and is not intended as a discussion of any specific factors that may affect
any particular obligation or issuer. 

The timely payment of principal of and interest on Ohio Obligations has been
guaranteed by bond insurance purchased by the issuers, the Ohio IM-IT or other
parties. Ohio Obligations may not be subject to the factors referred to in
this section of the Prospectus. 

Ohio is the seventh most populous state. The 1990 Census count of 10,847,000
indicated a 0.5% population increase from 1980. The Census estimate for 1995
is 11,157,000. 

While diversifying more into the service and other non-manufacturing areas,
the Ohio economy continues to rely in part on durable goods manufacturing
largely concentrated in motor vehicles and equipment, steel, rubber products
and household appliances. As a result, general economic activity, as in many
other industrially-developed states, tends to be more cyclical than in some
other states and in the nation as a whole. Agriculture is an important segment
of the economy, with over half the State's area devoted to farming and
approximately 16% of total employment in agribusiness. 

In prior years, the State's overall unemployment rate was commonly somewhat
higher than the national figure. For example, the reported 1990 average
monthly State rate was 5.7%, compared to the 5.5% national figure. However,
for the last six years the State rates were below the national rates (4.9%
versus 5.4% in 1996). The unemployment rate and its effects vary among
geographic areas of the State. 

There can be no assurance that future national, regional or state-wide
economic difficulties, and the resulting impact on State or local government
finances generally, will not adversely affect the market value of Ohio
Obligations held in the Ohio IM-IT portfolio or the ability of particular
obligors to make timely payments of debt service on (or lease payments
relating to) those Obligations. 

The State operates on the basis of a fiscal biennium for its appropriations
and expenditures, and is precluded by law from ending its July 1 to June 30
fiscal year ("FY") or fiscal biennium in a deficit position. Most
State operations are financed through the General Revenue Fund ("GRF" 
), for which personal income and sales-use taxes are the major sources. Growth
and depletion of GRF ending fund balances show a consistent pattern related to
national economic conditions, with the ending FY balance reduced during less
favorable and increased during more favorable economic periods. The State has
well-established procedures for, and has timely taken, necessary actions to
ensure resource/expenditure balances during less favorable economic periods.
Those procedures included general and selected reductions in appropriations
spending. 

Key biennium ending fund balances at June 30, 1989 were $475.1 million in the
GRF and $353 million in the Budget Stabilization Fund ("BSF", a cash
and budgetary management fund). June 30, 1991 ending fund balances were $135.3
million (GRF) and $300 million (BSF). 

The next biennium, 1992-1993, presented significant challenges to State
finances, successfully addressed. To allow time to resolve certain budget
differences an interim appropriations act was enacted effective July 1, 1991;
it included GRF debt service and lease rental appropriations for the entire
biennium, while continuing most other appropriations for a month. Pursuant to
the general appropriations act for the entire biennium, passed on July 11,
1991, $200 million was transferred from the BSF to the GRF in FY 1992. 

Based on updated results and forecasts in the course of that FY, both in light
of a continuing uncertain nationwide economic situation, there was projected
and then timely addressed an FY 1992 imbalance in GRF resources and
expenditures. In response, the Governor ordered most State agencies to reduce
GRF spending in the last six months of FY 1992 by a total of approximately
$184 million; the $100.4 million BSF balance, and additional amounts from
certain other funds were transferred late in the FY to the GRF, and
adjustments made in the timing of certain tax payments. 

A significant GRF shortfall (approximately $520 million) was then projected
for FY 1993. It was addressed by appropriate legislative and administrative
actions, including the Governor's ordering $300 million in selected GRF
spending reductions and subsequent executive and legislative action (a
combination of tax revisions and additional spending reductions). The June 30,
1993 ending GRF fund balance was approximately $111 million, of which, as a
first step to BSF replenishment, $21 million was deposited in the BSF.

None of the spending reductions were applied to appropriations needed for debt
service or lease rentals relating to any State obligations. 

The 1994-1995 biennium presented a more affirmative financial picture. Based
on June 30, 1994 balances, an additional $260 million was deposited in the
BSF. The biennium ended June 30, 1995 with a GRF ending fund balance of $928
million, of which $535.2 million was transferred into the BSF (which had an
October 7, 1996 balance of over $828 million).

The GRF appropriations act for the 1996-97 biennium was passed on June 28,
1995 and promptly signed (after selective vetoes) by the Governor. All
necessary GRF appropriations for State debt service and lease rental payments
then projected for the biennium were included in that act (and, for the coming
1998-99 biennium, have been included in the appropriations bill for that
biennium as now passed by the House). In accordance with the appropriations
act, the significant June 30, 1995 GRF fund balance, after leaving in the GRF
an unreserved and undesignated balance of $70 million, was transferred to the
BSF and other funds including school assistance funds and, in anticipation of
possible federal program changes, a human services stabilization fund.

The State's incurrence or assumption of debt without a vote of the people is,
with limited exceptions, prohibited by current State constitutional
provisions. The State may incur debt, limited in amount to $750,000, to cover
casual deficits or failures in revenues or to meet expenses not otherwise
provided for. The Constitution expressly precludes the State from assuming the
debts of any local government or corporation. (An exception is made in both
cases for any debt incurred to repel invasion, suppress insurrection or defend
the State in war.) 

By 14 constitutional amendments, approved from 1921 to date (the latest
adopted in 1995), Ohio voters authorized the incurrence of State debt and the
pledge to taxes or excises to its payment. At May 6, 1997, $955 million
(excluding certain highway bonds payable primarily from highway use receipts)
of this debt was outstanding. The only such State debt at that date still
authorized to be incurred were portions of the highway bonds, and the
following: (a) up to $100 million of obligations for coal research and
development may be outstanding at any one time ($32.3 million outstanding);
(b) $240 million of obligations previously authorized for local infrastructure
improvements, no more than $120 million of which may be issued in any calendar
year ($879 million outstanding); and (c) up to $200 million in general
obligation bonds for parks, recreation and natural resources purposes which
may be outstanding at any one time ($44.2 million outstanding and $50 million
in the process of sale, with no more than $50 million to be issued in any one
year).

The electors in 1995 approved a constitutional amendment extending the local
infrastructure bond program (authorizing an additional $1.2 billion of State
full faith and credit obligations to be issued over 10 years for the purpose),
and authorizing additional highway bonds (expected to be payable primarily
from highway use receipts). The latter supersedes the prior $500 million
outstanding authorization, and authorizes not more that $1.2 billion to be
outstanding at any time and not more than $220 million to be issued in a
fiscal year.

The Constitution also authorizes the issuance of State obligations for certain
purposes, the owners of which do not have the right to have excises or taxes
levied to pay debt service. Those special obligations include obligations
issued by the Ohio Public Facilities Commission and the Ohio Building
Authority, and certain obligations issued by the State Treasurer, over $4.9
billion of which were outstanding or in the process of delivery at May 6, 1997.

A 1990 constitutional amendment authorizes greater State and political
subdivision participation (including financing) in the provision of housing.
The General Assembly may for that purpose authorize the issuance of State
obligations secured by a pledge of all or such portion as it authorizes of
State revenues or receipts (but not by a pledge of the State's full faith and
credit). 

A 1994 constitutional amendment pledges the full faith and credit and taxing
power of the State to meeting certain guarantees under the State's tuition
credit program which provides for purchase of tuition credits, for the benefit
of State residents, guaranteed to cover a specified amount when applied to the
cost of higher education tuition. (A 1965 constitutional provision that
authorized student loan guarantees payable from available State moneys has
never been implemented, apart from a "guarantee fund" approach funded
especially from program revenues.)

State and local agencies issue obligations that are payable from revenues from
or relating to certain facilities (but not from taxes). By judicial
interpretation, these obligations are not "debt" within constitutional
provisions. In general, payment obligations under lease-purchase agreements of
Ohio public agencies (in which certificates of participation may be issued)
are limited in duration to the agency's fiscal period, and are renewable only
upon appropriations being made available for the subsequent fiscal period. 

Local school districts in Ohio receive a major portion (state-wide aggregate
approximately 44% in recent years) of their operating moneys from State
subsidies, but are dependent on local property taxes, and in 117 districts
from voter-authorized income taxes, for significant portions of their budgets.
Litigation, similar to that in other states, has been pending questioning the
constitutionality of Ohio's system of school funding. The Ohio Supreme Court
has recently concluded that aspects of the system (including basic operating
assistance) are unconstitutional and ordered the State to provide for and fund
a system complying with the Ohio Constitution, staying its order for a year to
permit time for responsive corrective actions. A small number of the State's
612 local school districts have in any year required special assistance to
avoid year-end deficits. A current program provides for school district cash
need borrowing directly from commercial lenders, with diversion of State
subsidy distributions to repayment if needed. Recent borrowings under this
program totalled $94.5 million for 27 districts (including $75 million for
one) in FY 1993, and $41.1 million for 28 districts in FY 1994, $71.1 million
for 29 districts in FY 1995 (including $29.5 million for one), and $87.2
million for 20 districts in FY 1996 (including $42.1 million for one).

Ohio's 943 incorporated cities and villages rely primarily on property and
municipal income taxes for their operations. With other subdivisions, they
also receive local government support and property tax relief moneys
distributed by the State. 

For those few municipalities and school districts that on occasion have faced
significant financial problems, there are statutory procedures for a joint
State/local commission to monitor the fiscal affairs and for development of a
financial plan to eliminate deficits and cure any defaults. Since inception
for municipalities in 1979, these procedures have been applied to 24 cities
and villages; for 19 of them the fiscal situation was resolved and the
procedures terminated. As of May 6, 1997, the 1996 school district "fiscal
emergency" provision had been applied to four districts and eight
districts had been placed on preliminary "fiscal watch" status.

At present the State itself does not levy ad valorem taxes on real or tangible
personal property. Those taxes are levied by political subdivisions and other
local taxing districts. The Constitution has since 1934 limited to 1% of true
value in money the amount of the aggregate levy (including a levy for unvoted
general obligations) of property taxes by all overlapping subdivisions,
without a vote of the electors or a municipal charter provision, and statutes
limit the amount of that aggregate levy to 10 mills per $1 of assessed
valuation (commonly referred to as the "ten-mill limitation"). Voted
general obligations of subdivisions are payable from property taxes that are
unlimited as to amount or rate. 

Tax Status. For a discussion of the Federal tax status of income earned on
Ohio IM-IT Trust Units, see "Federal Tax Status" in Part II of this
Prospectus. 

Commencing in 1985, Ohio municipalities may be permitted under Ohio law to
subject interest on certain of the obligations held by the Ohio IM-IT Trust to
income taxes imposed on their residents and entities doing business therein. 

In the opinion of Squire, Sanders & Dempsey, special counsel to the Fund for
Ohio tax matters, under existing law: 

The Ohio IM-IT Trust is not taxable as a corporation or otherwise for purposes
of the Ohio personal income tax, school district income taxes in Ohio, the
Ohio corporation franchise tax, or the Ohio dealers in intangibles tax. 

Distributions with respect to Units of the Ohio IM-IT Trust ("
Distributions") will be treated as the income of the Unitholders for
purposes of the Ohio personal income tax, and school district and municipal
income taxes in Ohio and the Ohio corporation franchise tax in proportion to
the respective interest therein of each Unitholder.

Distributions properly attributable to interest on obligations issued by or on
behalf of the State of Ohio, political subdivisions thereof, or agencies or
instrumentalities thereof ("Ohio Obligations"), or by the governments
of Puerto Rico, the Virgin Islands or Guam ("Territorial Obligations")
held by the Trust are exempt from the Ohio personal income tax, school
district and municipal income taxes, and are excluded from the net income base
of the Ohio corporation franchise tax when distributed or deemed distributed
to Unitholders. 

Distributions properly attributable to proceeds of insurance paid to the Ohio
IM-IT Trust that represent maturing or matured interest on defaulted
obligations held by the Ohio IM-IT Trust and that are excluded from gross
income for federal income tax purposes will be exempt from Ohio personal
income tax, and school district and municipal income taxes in Ohio and the net
income base of the Ohio corporation franchise tax.

Distributions of profit made on the sale, exchange or other disposition by the
Ohio IM-IT Trust of Ohio Obligations including distributions of "capital
gain dividends" as defined in Section 852(b)(3)(C) of the Code, properly
attributable to the sale, exchange or other disposition of Ohio Obligations
are exempt from Ohio personal income tax, and school district and municipal
income taxes in Ohio, and are excluded from the net income base of the Ohio
corporation franchise tax. 

 



<TABLE>
<CAPTION>
Per Unit Information:                                                             Semi-     
                                                                     Monthly      Annual    
                                                                    ------------ -----------
<S>                                                                 <C>          <C>        
Calculation of Estimated Net Annual Unit Income <F1>:                                       
 Estimated Annual Interest Income per Unit......................... $     53.24  $    53.24 
 Less: Estimated Annual Expense per Unit <F2>...................... $      2.34  $     1.91 
 Less: Annual Premium on Portfolio Insurance per Unit..............          --          -- 
 Estimated Net Annual Interest Income per Unit..................... $     50.90  $    51.33 
Calculation of Estimated Interest Earnings per Unit:                                        
 Estimated Net Annual Interest Income per Unit..................... $     50.90  $    51.33 
 Divided by 12 and 2, respectively................................. $      4.24  $    25.66 
Estimated Daily Rate of Net Interest Accrual per Unit.............. $    .14139  $   .14258 
Estimated Current Return Based on Public Offering Price <F1><F3>...        5.09%       5.13%
Estimated Long-Term Return <F3>....................................        5.13%       5.17%
Estimated Initial Monthly Distribution (July 1997)................. $      5.08             
Estimated Initial Semi-annual Distribution (July 1997).............              $     5.13 
Estimated Normal Distribution per Unit <F3>........................ $      4.24  $    25.66 
</TABLE>




<TABLE>
<CAPTION>
<S>                              <C>                                                                                            
Trustee's Annual Fee <F1><F4>... $.91 and $.51 per $1,000 principal amount of Bonds, respectively, for those portions of the    
                                 Ohio IM-IT Trust under the monthly and semi-annual distribution plans                          
Record and Computation Dates.... TENTH day of the month as follows: monthly--each month; semi-annual--January and July          
Distribution Dates.............. TWENTY-FIFTH day of the month as follows: monthly--each month; semi-annual--                   
                                 January and July                                                                               




- ----------
<FN>
<F1>During the first year the Trustee will reduce its fee by approximately $.02
per Unit (which amount is the estimated interest to be earned per Unit prior
to the expected delivery dates for the "when, as and if issued" Bonds
included in this Trust). Should such estimated interest exceed such amount,
the Trustee will reduce its fee up to its annual fee. After the first year,
the Trustee's fee will be that amount indicated above. Estimated Annual
Interest Income per Unit will be increased to $53.26. Estimated Annual Expense
per Unit (excluding insurance) will be increased to $2.36 and $1.93 under the
monthly and semi-annual distribution plans, respectively; and Estimated Net
Annual Interest Income per Unit will remain the same as shown. See "
Estimated Current Returns and Estimated Long-Term Returns" in Part II of
this Prospectus.

<F2>Excluding insurance costs. The Estimated Annual Expenses are expected to
fluctuate periodically (see "Trust Administration--Fund Administration and
Expenses--Miscellaneous Expenses" in Part II of this Prospectus).

<F3>The Estimated Current Returns and Estimated Long-Term Returns are increased
for transactions entitled to a reduced sales charge. See "Unitholder
Explanations--Public Offering--General" in Part II of this Prospectus. For
a discussion of how these returns are calculated, see "Unitholder
Explanations--Estimated Current Returns and Estimated Long-Term Returns" 
in Part II of this Prospectus. These figures are 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 Securities. The
estimated cash flows for this Series are set forth under "Other
Matters--Estimated Cash Flows to Unitholders".

<F4>Based on the size of the Trust on the Date of Deposit and assuming all
Unitholders had chosen the semi-annual distribution plan, the Trustee's
estimated annual fees for ordinary recurring services would initially amount
to $1,614. Assuming in the alternative that all Unitholders had elected the
monthly distribution plan, such fees would initially amount to $2,880.
</TABLE>





<TABLE>
OHIO INSURED MUNICIPALS INCOME TRUST
SERIES 107 (217TH INSURED MULTI-SERIES)
PORTFOLIO As of May 30, 1997

<CAPTION>
                                                                                                               Offering            
                                                                                                               Price To            
Aggregate     Name of Issuer, Title, Interest Rate and Maturity Date of                     Redemption         Ohio  IM-IT         
              either Bonds Deposited or Bonds Contracted for<F1><F5>            Rating<F2>  Feature<F3>        Trust<F4>           
- ------------- -------------------------------------------------------------- -------------- ------------------ -------------       
<S>           <C>                                                            <C>            <C>                <C>             
$     360,000 Claymont City School District, Ohio, School Improvement                                                              
              Bonds, Series 1997 (General Obligation-Unlimited Tax) FGIC                    2007 @ 101                             
              Insured  #5.70% Due 12/1/2021.................................            AAA 2012 @ 100 S.F.    $     362,398       
      250,000 Twinsburg City School District, Ohio, School Improvement                                                             
              Bonds, Series 1996 (General Obligation-Unlimited Tax) FGIC                    2006 @ 102                             
              Insured  5.90% Due 12/1/2021..................................            AAA 2017 @ 100 S.F.          255,845       
      125,000 City of Huber Heights, Ohio, Water System Revenue Bonds,                                                             
              Series 1995 (MBIA Insured)  #0.00% Due 12/1/2025..............            AAA                           25,325<F6>   
      250,000 City of Cleveland, Ohio, Waterworks Improvement and Refunding                                                        
              First Mortgage Revenue Bonds, Series 1996H (MBIA Insured)                     2006 @ 102                             
              #5.75% Due 1/1/2026...........................................            AAA 2022 @ 100 S.F.          251,627       
      180,000 Ohio, Turnpike Revenue Bonds, Series 1996A (MBIA Insured)                     2006 @ 102                             
              #5.50% Due 2/15/2026..........................................            AAA 2018 @ 100 S.F.          176,321       
      500,000 County of Montgomery, Ohio, Hospital Facilities Revenue                                                              
              Refunding and Improvement Bonds (Kettering Medical Center)                    2006 @ 102                             
              Series 1996 (MBIA Insured)  #5.50% Due 4/1/2026...............            AAA 2017 @ 100 S.F.          486,320       
      500,000 Lorain County, Ohio, Hospital Facilities Revenue Bonds,                                                              
              Catholic Healthcare Partners, Series 1997B (MBIA Insured)                     2007 @ 102                             
              #5.50% Due 9/1/2027...........................................            AAA 2018 @ 100 S.F.          486,015       
      500,000 City of Cleveland, Ohio, Certificates of Participation,                                                              
              Series 1997 (Cleveland Stadium Project) AMBAC Indemnity                       2007 @ 102                             
              Insured  #5.25% Due 11/15/2027##..............................            AAA 2023 @ 100 S.F.          471,890       
      500,000 Kent State University (A University of Ohio) General Receipts                 2006 @ 102                             
              Revenue Bonds, Series 1996 (MBIA Insured)  #5.50% Due 5/1/2028            AAA 2018 @ 100 S.F.          489,430       
$   3,165,000                                                                                                  $   3,005,171       
=============                                                                                                  =============       
</TABLE>

- ----------
All of the Bonds in the portfolio are insured by one of the Preinsured Bond
Insurers as indicated in the Bond name. See "Unitholder
Explanations--Insurance on the Bonds in the Insured Trusts" in Part II of
this Prospectus.

For an explanation of the footnotes used on this page, see "Notes to
Portfolios".
    


   
As of the Date of Deposit: May 30, 1997

- --------------------------------------------------------------------------
(1)All Securities are represented by "regular way" or "when
issued" contracts for the performance of which an irrevocable letter of
credit, obtained from an affiliate of the Trustee, has been deposited with the
Trustee. At the Date of Deposit, Securities may have been delivered to the
Sponsor pursuant to certain of these contracts; the Sponsor has assigned to
the Trustee all of its right, title and interest in and to such Securities.
Contracts to acquire Securities were entered into during the period from May
22, 1997 to May 29, 1997. These Securities have expected settlement dates
ranging from May 30, 1997 to June 5, 1997 (see "Unitholder
Explanations--Settlement of Bonds in the Trusts" in Part II of this
Prospectus).
    

(2)All ratings are by Standard & Poor's unless otherwise indicated. "*" 
 indicates that the rating of the Bond is by Moody's. The ratings represent
the latest published ratings by the respective rating agency or, if not
published, represent private letter ratings or those ratings expected to be
published by the respective rating agency. "Y" indicates that such
rating is contingent upon physical receipt by the respective rating agency of
a policy of insurance obtained by the issuer of the bonds involved and issued
by the Preinsured Bond Insurer named in the bond's title. A commitment for
insurance in connection with these bonds has been issued by the Preinsured
Bond Insurer named in the bond's title. "N/R" indicates that the
applicable rating service did not provide a rating for that particular
Security. For a brief description of the rating symbols and their related
meanings, see "Description of Ratings" in Part II of this Prospectus.

(3)There is shown under this heading the year in which each issue of Bonds is
initially or currently callable and the call price for that year. Each issue
of Bonds continues to be callable at declining prices thereafter (but not
below par value) except for original issue discount bonds which are redeemable
at prices based on the issue price plus the amount of original issue discount
accreted to redemption date plus, if applicable, some premium, the amount of
which will decline in subsequent years. "S.F." indicates a sinking
fund is established with respect to an issue of Bonds. Certain Bonds may be
subject to redemption without premium prior to the date shown pursuant to
extraordinary optional or mandatory redemptions if certain events occur. For a
general discussion of certain of these events, see "Unitholder
Explanations--Settlement of Bonds in the Trusts--Risk Factors" in Part II
of this Prospectus. Distributions will generally be reduced by the amount of
the income which would otherwise have been paid with respect to redeemed
Securities and there will be distributed to Unitholders the principal amount
and any premium received on such redemption. The Estimated Current Return and
Estimated Long-Term Return in this event may be affected by such redemptions.
For the Federal tax effect on Unitholders of such redemptions and resultant
distributions, see "Federal Tax Status" in Part II of this Prospectus.

(4)Evaluation of Securities is made on the basis of current offering prices
for the Securities. The offering prices are greater than the current bid
prices of the Securities which is the basis on which Unit value is determined
for purposes of redemption of Units (see "Unitholder Explanations--Public
Offering--Offering Price" in Part II of this Prospectus).

(5)Other information regarding the Bonds in each Trust, as of the Date of
Deposit, is as follows: 


   
<TABLE>
<CAPTION>
                                                              Annual                   
                          Annual                   Profit     Interest    Bid Side     
                          Insurance  Cost to       (Loss) to  Income to   Evaluation   
Trust                     Cost       Sponsor       Sponsor    Trust       of  Bonds    
                          ---------- ------------- ---------- ----------- -------------
<S>                       <C>        <C>           <C>        <C>         <C>          
IM-IT.................... $--        $   8,761,049 $   75,683 $   502,425 $   8,768,425
U.S. Territorial IM-IT... $--        $   2,872,261 $   15,937 $   159,313 $   2,865,723
Michigan IM-IT........... $--        $   2,842,792 $   17,827 $   160,163 $   2,838,137
Ohio IM-IT............... $--        $   2,990,051 $   15,120 $   168,295 $   2,981,902
</TABLE>




The Bonds in the Insured Trusts are insured as follows: 



<TABLE>
<CAPTION>
                          Bonds insured           Bonds insured                                 
                          under AMBAC             under Financial                               
Trust                     Indemnity               Guaranty                Preinsured    Total   
                          portfolio insurance     portfolio insurance     Bonds                 
                          ----------------------- ----------------------- ------------- --------
<S>                       <C>                     <C>                     <C>           <C>     
IM-IT.................... --                      --                      100%          100%    
U.S. Territorial IM-IT... --                      --                      100%          100%    
Michigan IM-IT........... --                      --                      100%          100%    
Ohio IM-IT............... --                      --                      100%          100%    
</TABLE>




The breakdown of the Preinsured Bond Insurers is as follows: IM-IT
Trust--AMBAC Indemnity 15%, Financial Guaranty 5%, MBIA 61% and FSA 19%; U.S.
Territorial IM-IT Trust--MBIA 62% and FSA 38%; Michigan IM-IT Trust--AMBAC
Indemnity 17%, Financial Guaranty 49% and MBIA 34%; Ohio IM-IT Trust--AMBAC
Indemnity 16%, Financial Guaranty 19% and MBIA 65%.
    

The Sponsor may have entered into contracts which hedge interest rate
fluctuations on certain Bonds in certain Trusts. The cost of any such
contracts and the corresponding gain or loss is included in the Cost to
Sponsor. Securities marked by a double pound symbol (##) following the
maturity date have been purchased on a "when, as and if issued" or
"delayed delivery" basis. Interest on these Securities begins accruing
to the benefit of Unitholders on their respective dates of delivery. Delivery
is expected to take place at various dates after the First Settlement Date as
follows: 


   
<TABLE>
<CAPTION>
                          Percent of                                            
                          Aggregate Principal    Range of Days Subsequent to    
Trust                     Amount                 First Settlement Date          
                          ---------------------- -------------------------------
<S>                       <C>                    <C>                            
IM-IT....................                     --                              --
U.S. Territorial IM-IT...                     --                              --
Michigan IM-IT...........                     --                              --
Ohio IM-IT...............                    16%                           1 day
</TABLE>




On the Date of Deposit, the offering side evaluations of the Securities in the
IM-IT, U.S. Territorial IM-IT, Michigan IM-IT   and Ohio IM-IT Trusts were
higher than the bid side evaluations of such Securities by 0.73%, 0.75%, 0.75%
and 0.74%, respectively, of the aggregate principal amounts of such Securities.

"#" prior to the coupon rate indicates that such Bond was issued at an
original issue discount. The tax effect of Bonds issued at an original issue
discount is described in "Federal Tax Status" in Part II of this
Prospectus.

(6)This Bond has been purchased at a deep discount from the par value because
there is little or no stated interest thereon. Bonds which pay no interest are
normally described as "zero coupon" bonds. Over the life of bonds
purchased at a deep discount, the value of such bonds will increase such that
upon maturity the holders of such bonds will receive 100% of the principal
amount thereof. To the extent that zero coupon bonds are sold or called prior
to maturity, there is no guarantee that the value of the proceeds received
therefrom by the Trust will equal or exceed the par value that would have been
obtained at maturity of such zero coupon bonds. Approximately 4%, 1% and 4% of
the aggregate principal amount of the Securities in the IM-IT Trust, Michigan
IM-IT Trust and Ohio IM-IT Trust, respectively, are "zero coupon" 
bonds. See "Unitholder Explanations--Settlement of Bonds in the
Trusts--Risk Factors" in Part II of this Prospectus for a discussion of
zero coupon bonds.
    
     


   
REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

To the Board of Directors of Van Kampen American Capital Distributors, Inc.
and the Unitholders of Insured Municipals Income Trust, 217th Insured
Multi-Series (IM-IT, U.S. Territorial IM-IT, Michigan IM-IT and Ohio IM-IT
Trusts):

We have audited the accompanying statements of condition and the related
portfolios of Insured Municipals Income Trust, 217th Insured Multi-Series
(IM-IT, U.S. Territorial IM-IT, Michigan IM-IT and Ohio IM-IT Trusts) as of
May 30, 1997. 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 irrevocable letters of credit deposited to
purchase tax-exempt securities 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 Insured Municipals Income
Trust, 217th Insured Multi-Series (IM-IT, U.S. Territorial IM-IT, Michigan
IM-IT and Ohio IM-IT Trusts) as of May 30, 1997, in conformity with generally
accepted accounting principles.





Chicago, Illinois                       GRANT THORNTON LLP
May 30, 1997
    




 
   
<TABLE>
                                       INSURED MUNICIPALS INCOME TRUST,
                                         217th INSURED MULTI-SERIES
                                           Statements of Condition
                                              As of May 30, 1997

<CAPTION>
                                                                          U.S.                                     
INVESTMENT IN SECURITIES                                                  Territorial   Michigan      Ohio IM-IT   
                                                            IM-IT Trust   IM-IT Trust   IM-IT  Trust  Trust        
                                                            ------------- ------------- ------------- -------------
<S>                                                         <C>           <C>           <C>           <C>          
Contracts to purchase tax-exempt securities <F1><F2><F3>... $   8,836,732 $   2,888,198 $   2,860,619 $   3,005,171
Accrued interest to the First Settlement Date <F1><F3>.....       114,719        34,468        24,775        22,935
                                                            ------------- ------------- ------------- -------------
Total...................................................... $   8,951,451 $   2,922,666 $   2,885,394 $   3,028,106
                                                            ============= ============= ============= =============
LIABILITY AND INTEREST OF UNITHOLDERS                                                                              
Liability--                                                                                                        
Accrued interest payable to Sponsor <F1><F3>............... $     114,719 $      34,468 $      24,775 $      22,935
Interest of Unitholders--                                                                                          
Cost to investors <F4>.....................................     9,292,000     3,037,000     3,008,000     3,160,000
Less: Gross underwriting commission <F4>...................       455,268       148,802       147,381       154,829
                                                            ------------- ------------- ------------- -------------
Net interest to Unitholders <F1><F3><F4>...................     8,836,732     2,888,198     2,860,619     3,005,171
                                                            ------------- ------------- ------------- -------------
Total...................................................... $   8,951,451 $   2,922,666 $   2,885,394 $   3,028,106
                                                            ============= ============= ============= =============

==========
<FN>
<F1>The aggregate value of the Securities listed under "Portfolio" for
each Trust herein, and their cost to such Trust are the same. The value of the
Securities is determined by Interactive Data Corporation on the bases set
forth under "Unitholder Explanations--Public Offering--Offering Price" 
in Part II of this Prospectus. The contracts to purchase tax-exempt Securities
are collateralized by irrevocable letters of credit which have been deposited
with the Trustee in and for the following amounts: 
</TABLE>




<TABLE>
<CAPTION>
                                              Principal     Offering      Accrued         
                                Amount of     Amount of     Price of      Interest to     
                                Letter of     Bonds Under   Bonds Under   Expected        
                                Credit        Contracts     Contracts     Delivery  Dates 
                                ------------- ------------- ------------- ----------------
<S>                             <C>           <C>           <C>           <C>             
IM-IT Trust.................... $   8,948,927 $   9,295,000 $   8,836,732 $        112,195
U.S. Territorial IM-IT Trust... $   2,921,563 $   3,000,000 $   2,888,198 $         33,365
Michigan IM-IT Trust........... $   2,883,614 $   3,010,000 $   2,860,619 $         22,995
Ohio IM-IT Trust............... $   3,026,721 $   3,165,000 $   3,005,171 $         21,550



<FN>
<F2>Insurance coverage providing for timely payment, when due, of all principal
and interest on the Bonds in the Insured Trusts has been obtained by such
Trusts, by a prior owner of such Bonds, by the Sponsor prior to the deposit of
such Bonds or by the issuers of such Bonds. Such insurance does not guarantee
the market value of the Bonds or the value of the Units. The insurance
obtained by the Insured Trusts is effective only while Bonds thus insured are
held in such Trusts. Neither the bid nor offering prices of the underlying
Bonds or of the Units, absent situations in which bonds are in default in
payment of principal or interest or in significant risk of such default,
include value, if any, attributable to the insurance obtained by such Trusts.

<F3>The Trustee will advance to the Trust the amount of net interest accrued to
June 4, 1997, the First Settlement Date, for distribution to the Sponsor as
the Unitholder of record as of the First Settlement Date.

<F4>The aggregate public offering price (exclusive of interest) and the aggregate
sales charge are computed on the bases set forth under "Unitholder
Explanations--Public Offering--Offering Price" and "Trust
Administration--General--Sponsor and Underwriter Compensation" in Part II
of this Prospectus and assume all single transactions involve less than 100
Units. For single transactions involving 100 or more Units, the sales charge
is reduced (see "Unitholder Explanations--Public Offering--General" in
Part II of this Prospectus) resulting in an equal reduction in both the Cost
to investors and the Gross underwriting commission while the Net interest to
Unitholders remains unchanged.
</TABLE>
    

EQUIVALENT TAXABLE 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 1997. 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. The tables assume that Federal
taxable income is equal to State income subject to tax, and for cases in which
more than one State rate falls within a Federal bracket, the State rate
corresponding to the highest income within that Federal bracket is used. The
combined State and Federal tax rates shown reflect the fact that State tax
payments are currently deductible for Federal tax purposes. The tables do not
reflect any local taxes or any taxes other than personal income taxes. 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 $121,200. The tables do not reflect
the effect of Federal or State limitations (if any) on the amount of allowable
itemized deductions and the deduction for personal or dependent exemptions or
any other credits. These limitations were designed to phase out certain
benefits of these deductions for higher income taxpayers. These limitations,
in effect, raise the marginal maximum 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" in Part II of this Prospectus for a more detailed
discussion of recent Federal tax legislation, including a discussion of
provisions affecting corporations.


   
IM-IT

<TABLE>
<CAPTION>
Taxable Income ($1,000's)                                         Tax-Exempt Estimated Current Return 
- ---------------------------------------          -------------------------------------------------------------------------
             Single               Joint      Tax                                                                          
             Return              Return  Bracket      5%        5 1/2%     6%        6 1/2%      7%       7 1/2%      8% 
 ------------------  ------------------ --------                                                                          
                                                                Equivalent Taxable Estimated Current Return 
- --------------------------------------- -------  -------------------------------------------------------------------------
<S>                 <C>                 <C>         <C>          <C>     <C>         <C>      <C>          <C>      <C>  
$         0 - 24.65 $         0 - 41.20      15%    5.88%        6.47%   7.06%        7.65%    8.24%        8.82%    9.41%
      24.65 - 59.75       41.20 - 99.60      28     6.94         7.64    8.33         9.03     9.72        10.42    11.11 
     59.75 - 124.65      99.60 - 151.75      31     7.25         7.97    8.70         9.42    10.14        10.87    11.59 
    124.65 - 271.05     151.75 - 271.05      36     7.81         8.59    9.38        10.16    10.94        11.72    12.50 
        Over 271.05         Over 271.05    39.6     8.28         9.11    9.93        10.76    11.59        12.42    13.25 
</TABLE>




U.S. TERRITORIAL IM-IT

<TABLE>
<CAPTION>
Taxable Income ($1,000's)                                           Tax-Exempt Estimated Current Return 
- ---------------------------------------          -------------------------------------------------------------------------
             Single               Joint      Tax                                                                          
             Return              Return Bracket*      5%       5 1/2%     6%        6 1/2%      7%        7 1/2%      8% 
 ------------------  ------------------ --------                                                                          
                                                                Equivalent Taxable Estimated Current Return 
- --------------------------------------- -------  -------------------------------------------------------------------------
<S>                 <C>                 <C>         <C>          <C>     <C>         <C>      <C>          <C>      <C>  
$         0 - 24.65 $         0 - 41.20      15%    5.88%        6.47%   7.06%        7.65%    8.24%        8.82%    9.41%
      24.65 - 59.75       41.20 - 99.60      28     6.94         7.64    8.33         9.03     9.72        10.42    11.11 
     59.75 - 124.65      99.60 - 151.75      31     7.25         7.97    8.70         9.42    10.14        10.87    11.59 
    124.65 - 271.05     151.75 - 271.05      36     7.81         8.59    9.38        10.16    10.94        11.72    12.50 
        Over 271.05         Over 271.05    39.6     8.28         9.11    9.93        10.76    11.59        12.42    13.25 
</TABLE>


- ----------
* The table reflects the Federal tax rate and does not reflect any effect that
Puerto Rico taxes may have in determining the taxable equivalent yield for
residents of Puerto Rico.



MICHIGAN



<TABLE>
<CAPTION>
Taxable Income ($1,000's)                                             Tax-Exempt Estimated Current Return 
- ---------------------------------------          --------------------------------------------------------------------------
             Single               Joint      Tax                                                                           
             Return              Return Bracket*      5%        5 1/2%      6%       6 1/2%      7%        7 1/2%      8% 
 ------------------  ------------------ --------                                                                           
                                                                 Equivalent Taxable Estimated Current Return 
- --------------------------------------- -------  --------------------------------------------------------------------------
<S>                 <C>                 <C>         <C>          <C>     <C>          <C>      <C>          <C>      <C>   
$         0 - 24.65 $        0 - 41.20     19.5%    6.21%        6.83%    7.45%        8.07%    8.70%        9.32%    9.94%
      24.65 - 59.75       41.20 - 99.60    31.8     7.33         8.06     8.80         9.53    10.26        11.00    11.73 
     59.75 - 124.65      99.60 - 151.75    34.6     7.65         8.41     9.17         9.94    10.70        11.47    12.23 
    124.65 - 271.05     151.75 - 271.05    39.4     8.25         9.08     9.90        10.73    11.55        12.38    13.20 
        Over 271.05         Over 271.05    42.8     8.74         9.62    10.49        11.36    12.24        13.11    13.99 
</TABLE>

- ----------
*The combined tax bracket includes both the individual income tax rate and the
intangible tax rate, because the intangible tax is generally based on income
received from intangibles.



OHIO


<TABLE>
<CAPTION>
Taxable Income ($1,000's)                                              Tax-Exempt Estimated Current Return 
- ---------------------------------------          --------------------------------------------------------------------------
             Single               Joint      Tax                                                                           
             Return              Return Bracket*      5%        5 1/2%      6%        6 1/2%      7%       7 1/2%      8% 
 ------------------  ------------------ --------                                                                           
                                                                  Equivalent Taxable Estimated Current Return 
- --------------------------------------- -------  --------------------------------------------------------------------------
<S>                 <C>                 <C>         <C>          <C>     <C>          <C>      <C>          <C>      <C>  
$         0 - 24.65                        18.8%    6.16%        6.77%    7.39%        8.00%    8.62%        9.24%    9.85%
                    $         0 - 41.20    19.4     6.20         6.82     7.44         8.06     8.68         9.31     9.93 
 24.65 - 59.75                             31.7     7.32         8.05     8.78         9.52    10.25        10.98    11.71 
                          41.20 - 99.60    32.3     7.39         8.12     8.86         9.60    10.34        11.08    11.82 
     59.75 - 124.65      99.60 - 151.75    35.8     7.79         8.57     9.35        10.12    10.90        11.68    12.46 
    124.65 - 271.05     151.75 - 271.05    40.8     8.45         9.29    10.14        10.98    11.82        12.67    13.51 
        Over 271.05         Over 271.05    44.1     8.94         9.84    10.73        11.63    12.52        13.42    14.31 
</TABLE>

- ----------
*The table does not reflect possible reductions in the State tax rates that
may occur if the Director of Budget and Management determines that certain
surplus revenues exist.
    



A comparison of tax-free and equivalent taxable estimated current returns with
the returns on various taxable investments is one element to consider in
making an investment decision. The Sponsor may from time to time in its
advertising and sales materials compare the then current estimated returns on
the Trusts and returns over specified periods on other similar Van Kampen
American Capital sponsored unit investment trusts with inflation rates and
with returns on taxable investments such as corporate or U.S. Government
bonds, bank CDs and money market accounts or money market funds, each of which
has investment characteristics that may differ from those of the Trusts. U.S.
Government bonds, for example, are backed by the full faith and credit of the
U.S. Government and bank CDs and money market accounts are insured by an
agency of the federal government. Money market accounts and money market funds
provide stability of principal, but pay interest at rates that vary with the
condition of the short-term debt market. The investment characteristics of the
Trusts are described more fully elsewhere in this Prospectus.

ESTIMATED CASH FLOWS TO UNITHOLDERS 

- --------------------------------------------------------------------------
The tables below set forth the per Unit estimated monthly and semi-annual
distributions of interest and principal to Unitholders. 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.

   

IM-IT Trust

<TABLE>
Monthly

<CAPTION>
                                          Estimated       Estimated       Estimated      
Distribution Dates                        Interest        Principal       Total          
(Each Month)                              Distribution    Distribution    Distribution   
- ----------------------------------------- --------------- --------------- ---------------
<S>         <C>     <C>           <C>     <C>             <C>             <C>            
July           1997                             $    5.19                       $    5.19
August         1997 - March          2008            4.32                            4.32
April          2008                                  3.87     $    107.61          111.48
May            2008 - September      2009            3.82                            3.82
October        2009                                  3.76           38.75           42.51
November       2009 - June           2017            3.63                            3.63
July           2017                                  3.63            8.07           11.70
August         2017 - July           2019            3.63                            3.63
August         2019                                  3.43           53.81           57.24
September      2019 - June           2020            3.38                            3.38
July           2020                                  3.24          107.62          110.86
August         2020 - June           2022            2.91                            2.91
July           2022                                  2.76          105.47          108.23
August         2022 - September      2022            2.44                            2.44
October        2022                                  2.36           53.80           56.16
November       2022 - August         2023            2.19                            2.19
September      2023                                  2.19           32.29           34.48
October        2023                                  1.85           96.86           98.71
November       2023 - November       2025            1.78                            1.78
December       2025                                  1.58           53.81           55.39
January        2026 - June           2026            1.54                            1.54
July           2026                                  1.39          107.62          109.01
August         2026 - September      2026            1.04                            1.04
October        2026                                   .89          107.62          108.51
November       2026 - January        2027             .54                             .54
February       2027                                   .46           53.81           54.27
March          2027                                   .08           53.81           53.89
April          2027 - December       2029             .04                             .04
January        2030                                                 19.37           19.37
</TABLE>




IM-IT Trust (continued)



<TABLE>
Semi-annual

<CAPTION>
Distribution Dates                       Estimated       Estimated       Estimated      
(Each June and December                  Interest        Principal       Total          
Unless Otherwise Indicated)              Distribution    Distribution    Distribution   
- ---------------------------------------- --------------- --------------- ---------------
<S>         <C>     <C>          <C>     <C>             <C>             <C>            
December       1997                           $    27.07                      $    27.07
June           1998 - December      2007           26.20                           26.20
April          2008                                          $    107.61          107.61
June           2008                                24.72                           24.72
December       2008 - June          2009           23.14                           23.14
October        2009                                                38.75           38.75
December       2009                                22.71                           22.71
June           2010 - June          2017           22.03                           22.03
July           2017                                                 8.07            8.07
December       2017 - June          2019           22.03                           22.03
August         2019                                                53.81           53.81
December       2019                                20.82                           20.82
June           2020                                20.53                           20.53
July           2020                                               107.62          107.62
December       2020                                17.97                           17.97
June           2021 - June          2022           17.63                           17.63
July           2022                                               105.47          105.47
October        2022                                                53.80           53.80
December       2022                                14.56                           14.56
June           2023                                13.32                           13.32
September      2023                                                32.29           32.29
October        2023                                                96.86           96.86
December       2023                                12.16                           12.16
June           2024 - June          2025           10.85                           10.85
December       2025                                10.64           53.81           64.45
June           2026                                 9.35                            9.35
July           2026                                               107.62          107.62
October        2026                                               107.62          107.62
December       2026                                 5.54                            5.54
February       2027                                                53.81           53.81
March           2027                                               53.81           53.81
June            2027                                1.27                            1.27
December        2027-December       2029             .29                             .29
January         2030                                               19.37           19.37
</TABLE>




U.S. Territorial IM-IT Trust

<TABLE>
Monthly

<CAPTION>
                                  Estimated       Estimated       Estimated      
Distribution Dates                Interest        Principal       Total          
(Each Month)                      Distribution    Distribution    Distribution   
- --------------------------------- --------------- --------------- ---------------
<S>      <C>     <C>      <C>     <C>             <C>             <C>            
July        1997                        $    5.01                       $    5.01
August      1997 - June      2021            4.18                            4.18
July        2021                             3.89     $    214.02          217.91
August      2021 - June      2022            3.23                            3.23
July        2022                             2.99          197.57          200.56
August      2022 - May       2025            2.43                            2.43
June        2025                             2.22          164.63          166.85
July        2025                             1.52          164.64          166.16
August      2025 - June      2027            1.01                            1.01
July        2027                              .69          246.95          247.64
</TABLE>








<TABLE>
Semi-annual

<CAPTION>
Distribution Dates                      Estimated       Estimated       Estimated      
(Each June and December                 Interest        Principal       Total          
Unless Otherwise Indicated)             Distribution    Distribution    Distribution   
- --------------------------------------- --------------- --------------- ---------------
<S>        <C>     <C>          <C>     <C>             <C>             <C>            
December      1997                           $    26.14                      $    26.14
June          1998 - June          2021           25.30                           25.30
July          2021                                          $    214.02          214.02
December      2021                                20.21                           20.21
June          2022                                19.54                           19.54
July          2022                                               197.57          197.57
December      2022                                15.28                           15.28
June          2023 - December      2024           14.72                           14.72
June          2025                                14.51          164.63          179.14
July          2025                                               164.64          164.64
December      2025                                 6.66                            6.66
June          2026 - June          2027            6.16                            6.16
July          2027                                  .70          246.95          247.65
</TABLE>




Michigan IM-IT Trust



<TABLE>
Monthly

<CAPTION>
                                          Estimated       Estimated       Estimated      
Distribution Dates                        Interest        Principal       Total          
(Each Month)                              Distribution    Distribution    Distribution   
- ----------------------------------------- --------------- --------------- ---------------
<S>         <C>     <C>           <C>     <C>             <C>             <C>            
July           1997                             $    5.08                       $    5.08
August         1997 - April          2007            4.24                            4.24
May            2007                                  4.12      $    83.11           87.23
June           2007 - June           2017            3.85                            3.85
July           2017                                  3.85            8.31           12.16
August         2017 - July           2020            3.85                            3.85
August         2020                                  3.22          166.22          169.44
September      2020 - April          2021            3.09                            3.09
May            2021                                  2.89          166.22          169.11
June           2021 - July           2021            2.42                            2.42
August         2021                                  2.26           49.87           52.13
September      2021                                  1.63          166.23          167.86
October        2021 - April          2022            1.52                            1.52
May            2022                                  1.43           64.82           66.25
June           2022 - September      2022            1.23                            1.23
October        2022                                  1.12           83.11           84.23
November       2022 - April          2026             .85                             .85
May            2026                                   .64          166.23          166.87
June           2026 - October        2026             .15                             .15
November       2026                                   .08           46.54           46.62
</TABLE>






Michigan IM-IT Trust (continued)

<TABLE>
Semi-annual

<CAPTION>
Distribution Dates                      Estimated       Estimated       Estimated      
(Each January and July                  Interest        Principal       Total          
Unless Otherwise Indicated)             Distribution    Distribution    Distribution   
- --------------------------------------- --------------- --------------- ---------------
<S>         <C>     <C>         <C>     <C>             <C>             <C>            
July           1997                           $    5.13                       $    5.13
January        1998 - January      2007           25.66                           25.66
May            2007                                          $    83.11           83.11
July           2007                               24.76                           24.76
January        2008 - January      2017           23.31                           23.31
July           2017                               23.31            8.31           31.62
January        2018 - July         2020           23.31                           23.31
August         2020                                              166.22          166.22
January        2021                               18.87                           18.87
May            2021                                              166.22          166.22
July           2021                               17.19                           17.19
August         2021                                               49.87           49.87
September      2021                                              166.23          166.23
January        2022                               10.07                           10.07
May            2022                                               64.82           64.82
July           2022                                8.54                            8.54
October        2022                                               83.11           83.11
January        2023                                6.21                            6.21
July           2023 - January      2026            5.18                            5.18
May            2026                                              166.23          166.23
July           2026                                3.54                            3.54
November       2026                                 .54           46.54           47.08
</TABLE>




Ohio IM-IT Trust


<TABLE>
Monthly

<CAPTION>
                                         Estimated       Estimated       Estimated      
Distribution Dates                       Interest        Principal       Total          
(Each Month)                             Distribution    Distribution    Distribution   
- ---------------------------------------- --------------- --------------- ---------------
<S>         <C>     <C>          <C>     <C>             <C>             <C>            
July           1997                            $    5.08                       $    5.08
August         1997 - December      2007            4.24                            4.24
January        2008                                 4.13      $    79.11           83.24
February       2008 - November      2008            3.87                            3.87
December       2008                                 3.60          193.04          196.64
January        2009 - November      2025            2.96                            2.96
December       2025                                 2.96           39.55           42.51
January        2026 - February      2026            2.96                            2.96
March          2026                                 2.76           56.97           59.73
April          2026                                 2.50          158.22          160.72
May            2026 - August        2027            2.01                            2.01
September      2027                                 1.80          158.23          160.03
October        2027 - November      2027            1.31                            1.31
December       2027                                  .75          158.23          158.98
January        2028 - April         2028             .64                             .64
May            2028                                  .43          158.23          158.66
</TABLE>








<TABLE>
Semi-annual

<CAPTION>
Distribution Dates                   Estimated       Estimated       Estimated      
(Each January and July               Interest        Principal       Total          
Unless Otherwise Indicated)          Distribution    Distribution    Distribution   
- ------------------------------------ --------------- --------------- ---------------
<S>         <C>     <C>      <C>     <C>             <C>             <C>            
July           1997                        $    5.13                       $    5.13
January        1998 - July      2007           25.66                           25.66
January        2008                            25.55      $    79.11          104.66
July           2008                            23.43                           23.43
December       2008                                           193.04          193.04
January        2009                            22.25                           22.25
July           2009 - July      2025           17.98                           17.98
December       2025                                            39.55           39.55
January        2026                            17.98                           17.98
March          2026                                            56.97           56.97
April          2026                                           158.22          158.22
July           2026                            14.42                           14.42
January        2027 - July      2027           12.21                           12.21
September      2027                                           158.23          158.23
December       2027                                           158.23          158.23
January        2028                             7.92                            7.92
May            2028                             2.38          158.23          160.61
</TABLE>
    




UNDERWRITING

- --------------------------------------------------------------------------
The Underwriters named below have severally purchased Units in the following
respective amounts from the Sponsor. For additional information regarding the
Underwriters, including information relating to compensation and benefits
received by the Underwriters, see "Unitholder
Explanations--Underwriting" in Part II of this Prospectus. 

 


   
<TABLE>
<CAPTION>
Name                                                                                                                IM-IT Trust
                                            Address                                                                       Units
                                                                                                                 --------------
<S>                                         <C>                                                                  <C>           
Van Kampen American Capital Dist., Inc.     One Parkview Plaza, Oakbrook Terrace, Illinois 60181                         5,392 
A.G. Edwards & Sons, Inc.                   One North Jefferson Avenue, St. Louis, Missouri 63103                        1,000 
R. Seelaus & Co., Inc.                      The Atrium @ 47 Maple Street, Summit, New Jersey 07901                         350 
Fahnestock & Co., Inc.                      1500 Walnut Street, Philadelphia, Pennsylvania 19102                           250 
J.J.B. Hilliard, W.L. Lyons, Inc.           501 South Fourth Street, Louisville, Kentucky 40202                            250 
Edward D. Jones & Co.                       201 Progress Parkway, Maryland Heights, Missouri  63043                        250 
Peacock, Hislop, Staley, & Given, Inc.      122 North Kirkwood Road, St. Louis, Missouri 63122                             250 
Principal Financial Securities, Inc.        Fountain Place, 1445 Ross Avenue, Suite 2300, Dallas, Texas 75201              250 
Roosevelt & Cross Inc.                      20 Exchange Place, New York, New York 10005                                    250 
Southwest Securities Inc.                   1201 Elm Street, Suite 4300, Dallas, Texas 75270                               250 
Advest, Inc.                                90 State House Square, Hartford, Connecticut 06103                             100 
Robert W. Baird & Co. Inc.                  777 East Wisconsin Avenue, Milwaukee, Wisconsin 53202                          100 
Dean Witter Reynolds, Incorporated          2 World Trade Center, 59th Floor, New York, New York 10048                     100 
First Miami Securities                      20660 West Dixie Highway, North Miami Beach, Florida 33180                     100 
Gruntal & Co., Incorporated                 14 Wall Street, New York, New York 10005                                       100 
Oppenheimer & Co., Inc.                     World Financial Center, 8th Floor, New York, New York 10281                    100 
Prudential Securities Inc.                  1 New York Plaza, 14th Floor, New York, New York 10292-2014                    100 
Stifel, Nicolaus & Company, Incorporated    500 North Broadway, St. Louis, Missouri 63102                                  100 
                                                                                                                         9,292 
                                                                                                                 ==============
</TABLE>




 



<TABLE>
<CAPTION>
                                                                                                           U.S. Territorial
Name                                                                                                            IM-IT Trust
                                            Address                                                                   Units
                                                                                                          -----------------
<S>                                         <C>                                                           <C>              
Van Kampen American Capital Dist., Inc.     One Parkview Plaza, Oakbrook Terrace, Illinois 60181                     2,637 
Dean Witter Reynolds, Incorporated          2 World Trade Center, 59th Floor, New York, New York 10048                 100 
Gruntal & Co., Incorporated                 14 Wall Street, New York, New York 10005                                   100 
Edward D. Jones & Co.                       201 Progress Parkway, Maryland Heights, Missouri  63043                    100 
Stifel, Nicolaus & Company, Incorporated    500 North Broadway, St. Louis, Missouri 63102                              100 
                                                                                                                     3,037 
                                                                                                          =================
</TABLE>




 



<TABLE>
<CAPTION>
Name                                                                                                        Michigan  IM-IT
                                           Address                                                              Trust Units
                                                                                                          -----------------
<S>                                        <C>                                                            <C>              
Van Kampen American Capital Dist., Inc.    One Parkview Plaza, Oakbrook Terrace, Illinois 60181                      1,883 
Roney & Co.                                One Griswold, Detroit, Michigan 48226                                       375 
First of Michigan Corporation              100 Renaissance Center, 26th Floor, Detroit, Michigan 48243                 250 
Dean Witter Reynolds, Incorporated         2 World Trade Center, 59th Floor, New York, New York 10048                  100 
A.G. Edwards & Sons, Inc.                  One North Jefferson Avenue, St. Louis, Missouri 63103                       100 
Gruntal & Co., Incorporated                14 Wall Street, New York, New York 10005                                    100 
Edward D. Jones & Co.                      201 Progress Parkway, Maryland Heights, Missouri  63043                     100 
Prudential Securities Inc.                 1 New York Plaza, 14th Floor, New York, New York 10292-2014                 100 
                                                                                                                     3,008 
                                                                                                          =================
</TABLE>




 



<TABLE>
<CAPTION>
                                                                                                                               Ohio
                                                                                                                             IM-IT 
Name                                                                                                                          Trust
                                           Address                                                                            Units
                                                                                                                          ---------
<S>                                        <C>                                                                            <C>      
Van Kampen American Capital Dist., Inc.    One Parkview Plaza, Oakbrook Terrace, Illinois 60181                              2,310 
Prudential Securities Inc.                 1 New York Plaza, 14th Floor, New York, New York 10292-2014                         250 
Dean Witter Reynolds, Incorporated         2 World Trade Center, 59th Floor, New York, New York 10048                          100 
Gruntal & Co., Incorporated                14 Wall Street, New York, New York 10005                                            100 
J.J.B. Hilliard, W.L. Lyons, Inc.          501 South Fourth Street, Louisville, Kentucky 40202                                 100 
Edward D. Jones & Co.                      201 Progress Parkway, Maryland Heights, Missouri  63043                             100 
                                           McDonald Investment Center, 800 Superior Avenue, Suite 2100, Cleveland, Ohio            
McDonald & Company Securities, Inc.        44114                                                                               100 
The Ohio Company                           155 East Broad Street, Columbus, Ohio 43215                                         100 
                                                                                                                             3,160 
                                                                                                                          =========
</TABLE>
    





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
Fund, the Sponsor or the Underwriters. 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.





<TABLE>
<CAPTION>
Title                                                Page   
<S>                                                  <C>    
SUMMARY OF ESSENTIAL FINANCIAL INFORMATION                 2
IM-IT                                                      3
U.S. TERRITORIAL IM-IT TRUST                               6
MICHIGAN IM-IT TRUST                                       9
OHIO IM-IT TRUST                                          14
OTHER MATTERS                                             22
Report of Independent Certified Public Accountants        22
Statements of Condition                                   23
Equivalent Taxable Estimated Current Return Tables        24
Estimated Cash Flows to Unitholders                       26
Underwriting                                              32
</TABLE>




This Prospectus contains information concerning the Fund and the Sponsor, but
does not contain all of the information set forth in the registration
statements and exhibits relating thereto, which the Fund has 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
hereby made. 

PROSPECTUS

PART I

   
May 30, 1997




Insured Municipals
Income Trust, 217th
Insured Multi-Series

IM-IT 389
U.S. Territorial IM-IT 1
Michigan IM-IT 145
Ohio IM-IT 107
    


A Wealth of Knowledge A Knowledge of Wealth(sm) 

VAN KAMPEN AMERICAN CAPITAL





One Parkview Plaza
Oakbrook Terrace, Illinois 60181

2800 Post Oak Boulevard
Houston, Texas 77056



This Part I of the Prospectus may not be distributed unless accompanied by
Part II. Both Parts of this Prospectus should be retained for future reference.





February 1997

Van Kampen American Capital

Prospectus Part II

Insured Municipals Income Trust, Insured Multi-Series and
Insured Municipals Income Trust and Investors' Quality Tax-Exempt Trust,
Multi-Series

This Part II of the Prospectus may not be distributed unless accompanied by
Part I. Both Parts of this Prospectus should be retained for future reference.

In the opinion of counsel, interest to the Fund and to Unitholders, with
certain exceptions, is excludable under existing law from gross income for
Federal income taxes. In addition, the interest income of each State Trust is,
in the opinion of counsel, exempt to the extent indicated from state and local
taxes, when held by residents of the state where the issuers of Bonds in such
Trust are located. Capital gains, if any, are subject to Federal tax.

The Fund. The objectives of the Fund are Federal and, in the case of a State
Trust, state tax-exempt income and conservation of capital through an
investment in a diversified portfolio of tax-exempt bonds. The Fund consists
of the underlying separate unit investment trusts set forth in Part I of this
Prospectus. Each Trust initially consists of delivery statements relating to
contracts to purchase securities and, thereafter, will consist of such
securities as may continue to be held (the "Bonds" or "
Securities" ). Such Securities are interest-bearing obligations issued by
or on behalf of municipalities and other governmental authorities, the
interest on which is, in the opinion of recognized bond counsel to the issuing
governmental authority, exempt from all Federal income taxes under existing
law. In addition, the interest income of each State Trust is, in the opinion
of counsel, exempt to the extent indicated from state and local taxes, when
held by residents of the state where the issuers of Bonds in such Trust are
located. The Bonds in an IM-IT Discount Trust were acquired at prices which
result in an IM-IT Discount Trust portfolio, as a whole, being purchased at a
deep discount from the aggregate par value of such Bonds. Gains based upon the
difference, if any, between the value of the Bonds at maturity, redemption or
sale and their purchase price at a discount (plus earned original issue
discount) will constitute taxable ordinary income with respect to a Unitholder
who is not a dealer with respect to his Units. Except in specific instances as
noted in Part I of this Prospectus, the information contained in this Part II
shall apply to each Trust in its entirety.

"AAA" Rating for the Insured Trusts Only. Insurance guaranteeing the
payments of principal and interest, when due, on the Securities in the
portfolio of each Insured Trust has been obtained from a municipal bond
insurance company either by such Trust or by the issuer of the Bonds involved,
by a prior owner of the Bonds or by the Sponsor prior to the deposit of such
Bonds in an Insured Trust. See "Unitholder Explanations--Insurance on the
Bonds in the Insured Trusts" . Insurance obtained by an Insured Trust
applies only while Bonds are retained in such Trust while insurance obtained
on Preinsured Bonds is effective so long as such Bonds are outstanding. The
Trustee, upon the sale of a Bond insured under an insurance policy obtained by
an Insured Trust, has a right to obtain from the insurer involved permanent
insurance for such Bond upon the payment of a single predetermined insurance
premium and any expenses related thereto from the proceeds of the sale of such
Bond. Insurance relates only to the Bonds in a Trust and not to the Units
offered hereby or to the market value thereof. As a result of such insurance,
the Units of each Insured Trust have received a rating of "AAA" by
Standard & Poor's, A Division of the McGraw-Hill Companies ("Standard &
Poor's" ). Standard & Poor's has indicated that this rating is not a
recommendation to buy, hold or sell Units nor does it take into account the
extent to which expenses of each Insured Trust or sales by each Insured Trust
of Bonds for less than the purchase price paid by such Trust will reduce
payments to Unitholders of the interest and principal required to be paid on
such Bonds. See "Unitholder Explanations--Insurance on the Bonds in the
Insured Trusts" . No representation is made as to any insurer's ability to
meet its commitments.

Units of the Trusts are not insured by the FDIC, are not deposits or other
obligations of, or guaranteed by, any government agency and are subject to
investment risk, including possible loss of the principal amount invested.

Public Offering Price. The Public Offering Price of the Units of each Trust
during the initial offering period includes the aggregate offering price of
the Securities in such Trust's portfolio, an applicable sales charge, cash, if
any, in the Principal Account held or owned by such Trust, and accrued
interest, if any. After the initial public offering period, the secondary
market Public Offering Price of each Trust will include the aggregate bid
price of the Securities in such Trust, an applicable sales charge, cash, if
any, in the Principal Account held or owned by such Trust, and accrued
interest, if any. Sales charges for the Trusts in the initial market,
expressed both as a percentage of the Public Offering Price and as a
percentage of the aggregate offering price of the Securities, are set forth
under "Unitholder Explanations--Public Offering--General." For sales
charges in the secondary market, see "Unitholder Explanations--Public
Offering--General" . If the Securities in each Trust were available for
direct purchase by investors, the purchase price of the Securities would not
include the sales charge included in the Public Offering Price of the Units.
During the initial offering period, the sales charge is reduced on a graduated
scale for sales involving at least 100 Units. If Units were available for
purchase at the close of business on the day before the Date of Deposit
(except for an IM-IT, an IM-IT Discount or a Pennsylvania IM-IT Trust as of
8:00 A.M. Central Time on the Date of Deposit), the Public Offering Price per
Unit would have been that amount set forth in the "Summary of Essential
Financial Information" in Part I of this Prospectus for each Trust. The
minimum purchase requirement is one Unit except for certain transactions
described under "Trust Administration--General--Unit Distribution" .

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.

Estimated Current Return and Estimated Long-Term Return. The annual Estimated
Current Returns and Estimated Long-Term Returns to Unitholders as of the close
of business on the day before the Date of Deposit (except for an IM-IT, an
IM-IT Discount or a Pennsylvania IM-IT Trust as of 8:00 A.M. Central Time on
the Date of Deposit) under the monthly and semi-annual distribution plans were
as set forth under "Per Unit Information" for each Trust in Part I of
this Prospectus. The methods of calculating Estimated Current Return and
Estimated Long-Term Return are set forth under "Unitholder
Explanations--Estimated Current Returns and Estimated Long-Term Returns." 

Objectives of The Fund. The objectives of the Fund are income exempt from
Federal income tax and, in the case of a State Trust, Federal and state income
tax (if any) and conservation of capital through an investment in diversified
portfolios of Federal and state tax-exempt obligations. There is, of course,
no guarantee that the Fund will achieve its objectives. The Fund 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, securities of
the type deposited in the Fund are often not available in small amounts.

Distribution Options. Purchasers of Units who desire to receive distributions
on a monthly or semi-annual basis may elect to do so at the time of settlement
during the initial public offering period. See "Unitholder
Explanations--Settlement of Bonds in the Trusts--Change of Distribution
Option" . The plan of distribution selected by such purchasers will remain
in effect until changed. Those indicating no choice will be deemed to have
chosen the monthly distribution plan. Record dates for monthly distributions
will be the tenth day of each month and record dates for semi-annual
distributions will be the tenth day of the months indicated under "Per
Unit Information" for the applicable Trust in Part I of this Prospectus.
Distributions will be made on the twenty-fifth day of the month subsequent to
the respective record dates.

Market for Units. Although not obligated to do so, the Sponsor, Van Kampen
American Capital Distributors, Inc., intends to, and certain of the other
Underwriters may, maintain a secondary market for the Units at prices based
upon the aggregate bid prices of the Securities in the respective Trusts plus
interest accrued to the date of settlement; however, during the initial
offering period such prices will be based upon the aggregate offering prices
of the Securities plus interest accrued to the date of settlement. If such a
market is not maintained and no other over-the-counter market is available, a
Unitholder will be able to dispose of his Units only through redemption at
prices based upon the bid prices of the underlying Securities plus interest
accrued to the date of settlement (see "Unitholder Explanations--Public
Offering--Redemption of Units" and "Unitholder Explanations--Public
Offering--Market for Units" ).

Reinvestment Option. Unitholders of any Van Kampen American Capital-sponsored
unit investment trust may utilize their redemption or termination proceeds to
purchase units of any other Van Kampen American Capital trust in the initial
offering period accepting rollover investments subject to a reduced sales
charge to the extent stated in the related prospectus (which may be deferred
in certain cases).

Unitholders have the opportunity to have their distributions reinvested into
an open-end, management investment company as described herein. See "
Unitholder Explanations--Public Offering--Reinvestment Option" .

Risk Factors. An investment in the Trusts should be made with an understanding
of the risks associated therewith, including, among other factors, the
inability of the issuer or an insurer to pay the principal of or interest on a
bond when due, volatile interest rates, early call provisions, and changes to
the tax status of the Bonds. See "Unitholder Explanations--Settlement of
Bonds in the Trusts--Risk Factors" .

SETTLEMENT OF BONDS IN THE TRUSTS

- --------------------------------------------------------------------------
The Fund. This series of the Insured Municipals Income Trust or the Insured
Municipals Income Trust and Investors' Quality Tax-Exempt Trust (the "
Fund" ), consists of the underlying separate unit investment trusts
described in Part I of this Prospectus. The Fund was created under the laws of
the State of New York pursuant to a Trust Indenture and Agreement (the "
Trust Agreement" ), dated the Date of Deposit, among Van Kampen American
Capital Distributors, Inc., as Sponsor, American Portfolio Evaluation
Services, a division of Van Kampen American Capital Investment Advisory Corp.,
as Evaluator, and The Bank of New York, as Trustee.

The Fund initially consists of separate portfolios of delivery statements
relating to contracts to purchase interest-bearing obligations issued by or on
behalf of states and territories of the United States, and political
subdivisions and authorities thereof, the interest on which is, in the opinion
of recognized bond counsel to the issuing authorities, excludable from gross
income for Federal income tax under existing law. All issuers of Securities in
a State Trust are located in the state for which such Trust is named or in
United States territories or possessions and their public authorities;
consequently, in the opinion of recognized bond counsel to such State issuers,
the related interest earned on such Securities is exempt to the extent
indicated from state and local taxes of such State. With the exception of the
New York and Pennsylvania Trusts, Units of such Trusts may be purchased only
by residents of the State for which such Trust is named. Units of a New York
Trust may be purchased by residents of New York, Connecticut, Florida and
Massachusetts. Units of a Pennsylvania Trust may be purchased by residents of
Pennsylvania, Connecticut, Florida, Maryland, New York, Ohio and West
Virginia. Offerees in the states of Illinois, Indiana, Virginia and Washington
may only purchase Units of a Trust named for their respective state of
residence or an IM-IT, IM-IT Limited Maturity, IM-IT Intermediate, IM-IT Short
Intermediate, IM-IT Discount Series or a National Quality Trust. On the Date
of Deposit, the Sponsor deposited with the Trustee the aggregate principal
amount of Securities in each Trust as indicated under "General
Information--Principal Amount (Par Value) of Securities in Trust" in the
"Summary of Essential Financial Information" in Part I of this
Prospectus. Such Securities initially consist of delivery statements relating
to contracts for the purchase of certain interest-bearing obligations and
cash, cash equivalents and/or irrevocable letters of credit issued by a
financial institution in the amount required for such purchases. Thereafter,
the Trustee, in exchange for the Securities so deposited, delivered to the
Sponsor the certificates evidencing the ownership of the number of Units in
each Trust as indicated under "Summary of Essential Financial
Information" in Part I of this Prospectus. Unless otherwise terminated as
provided herein, the Trust Agreement for any IM-IT, IM-IT Discount, State
(other than a State Intermediate Laddered Maturity Trust) or National Quality
Trust will terminate at the end of the calendar year prior to the fiftieth
anniversary of its execution, and the Trust Agreement for any IM-IT Limited
Maturity Trust, IM-IT Intermediate Trust, State Intermediate Laddered Maturity
Trust or IM-IT Short Intermediate Trust will terminate at the end of the
calendar year prior to the twentieth anniversary of its execution.

The portfolio of any IM-IT, IM-IT Discount, State (other than a State
Intermediate Laddered Maturity Trust) or National Quality Trust consists of
Bonds maturing approximately 15 to 40 years from the Date of Deposit. The
approximate range of maturities from the Date of Deposit for Bonds in any
IM-IT Limited Maturity Trust, IM-IT Intermediate Trust, State Intermediate
Laddered Maturity Trust and IM-IT Short Intermediate Trust is 12 to 15 years,
5 to 15 years, 5 to 10 years and 3 to 7 years, respectively. The
dollar-weighted average maturity of the Bonds in any IM-IT Intermediate Trust,
State Intermediate Laddered Maturity Trust and IM-IT Short Intermediate Trust
is less than or equal to 10 years, 10 years and 5 years, respectively.

Substantially all of the Bonds in an IM-IT Discount Trust are obligations
which were originally issued at a discount, including "zero coupon" 
bonds. See "Federal Tax Status" for a discussion of the tax
consequences of original issue discount.

The portfolio of any State Intermediate Laddered Maturity Trust is structured
so that approximately 20% of the Bonds contained in such portfolio will mature
each year, commencing in approximately the fifth year of the Trust, entitling
each Unitholder to a return of principal. This return of principal may offer
Unitholders the opportunity to respond to changing economic conditions and to
specific financial needs that may arise between the fifth and tenth years of a
State Intermediate Laddered Maturity Trust. However, the flexibility provided
by the return of principal may at the same time eliminate a Unitholder's
ability to reinvest the amount returned at a rate as high as the implicit
yield on the obligations which matured.

Each Unit initially offered represents the fractional undivided interest in
the principal and net income of a Trust indicated under "Summary of
Essential Financial Information" in Part I of this Prospectus. To the
extent that any Units are redeemed by the Trustee, the fractional undivided
interest in a Trust represented by each unredeemed Unit will increase,
although the actual interest in such Trust represented by such fraction will
remain unchanged. Units will remain outstanding until redeemed upon tender to
the Trustee by Unitholders, which may include the Sponsor or the Underwriters,
or until the termination of the Trust Agreement.

Objectives and Securities Selection. The objectives of the Fund are income
exempt from Federal income taxation and, in the case of a State Trust, Federal
and state income taxation and conservation of capital through an investment in
diversified portfolios of Federal and state tax-exempt obligations. A State
Intermediate Laddered Maturity Trust has additional objectives of providing
protection against changes in interest rates and investment flexibility
through an investment in a laddered portfolio of intermediate-term
interest-bearing obligations with maturities ranging from approximately 5 to
10 years in which roughly 20% of the obligations contained in such portfolio
will mature each year commencing in approximately the fifth year of the Trust.
There is, of course, no guarantee that the Trusts will achieve their
respective objectives. The Fund 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, securities of the type deposited in the Fund are
often not available in small amounts.

Insurance guaranteeing the timely payment, when due, of all principal and
interest on the Bonds in each Insured Trust has been obtained by such Trust
from either AMBAC Indemnity Corporation ("AMBAC Indemnity" ), Financial
Guaranty Insurance Company ("Financial Guaranty" or "FGIC" ) or
a combination thereof (collectively, the "Portfolio Insurers" ), or by
the issuer of such Bonds, by a prior owner of such Bonds, or by the Sponsor
prior to the deposit of such Bonds in such Trust from certain of the "
Preinsured Bond Insurers" described herein. Insurance obtained by an
Insured Trust is effective only while the Bonds thus insured are held in such
Trust. For information relating to insurance on the bonds, see "Unitholder
Explanations--Insurance on the Bonds in the Insured Trusts." 

In selecting Securities for the Trusts, the following factors, among others,
were considered by the Sponsor: (a) either the Standard & Poor's rating of the
Securities was in no case less than "BBB-" in the case of the Insured
Trusts and "A-" in the case of the Quality Trusts, or the Moody's
Investors Service, Inc. ("Moody's" ) rating of the Securities was in no
case less than "Baa" in the case of the Insured Trusts and "A" 
in the case of the Quality Trusts, including provisional or conditional
ratings, respectively, or, if not rated, the Securities had, in the opinion of
the Sponsor, credit characteristics sufficiently similar to the credit
characteristics of interest-bearing tax-exempt obligations that were so rated
as to be acceptable for acquisition by the Fund (see "Description of
Ratings" ), (b) the prices of the Securities relative to other bonds of
comparable quality and maturity, (c) the diversification of Securities as to
purpose of issue and location of issuer and (d) with respect to the Insured
Trusts, the availability and cost of insurance for the prompt payment of
principal and interest, when due, on the Securities. Subsequent to the Date of
Deposit, a Security may cease to be rated or its rating may be reduced below
the minimum required as of the Date of Deposit. Neither event requires
elimination of such Security from the portfolio of a Trust but may be
considered in the Sponsor's determination as to whether or not to direct the
Trustee to dispose of the Security (see "Trust Administration--Fund
Administration and Expenses--Portfolio Administration" ).

Risk Factors. The Trusts include certain types of bonds described below.
Accordingly, an investment in a Trust should be made with an understanding of
the characteristics of and risks associated with such bonds. See "
General" for each Trust in Part I of this Prospectus. Neither the Sponsor
nor the Trustee shall be liable in any way for any default, failure or defect
in any of the Bonds.

Certain of the Bonds 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 tax or
other specific revenue source. There are, of course, variations in the
security of the different Bonds in the Fund, both within a particular
classification and between classifications, depending on numerous factors.

Certain of the Bonds may be obligations which derive their payments from
mortgage loans. Certain of such housing bonds may be FHA insured or may be
single family mortgage revenue bonds issued for the purpose of acquiring from
originating financial institutions notes secured by mortgages on residences
located within the issuer's boundaries and owned by persons of low or moderate
income. Mortgage loans are generally partially or completely prepaid prior to
their final maturities as a result of events such as sale of the mortgaged
premises, default, condemnation or casualty loss. Because these bonds are
subject to extraordinary mandatory redemption in whole or in part from such
prepayments of mortgage loans, a substantial portion of such bonds will
probably be redeemed prior to their scheduled maturities or even prior to
their ordinary call dates. Extraordinary mandatory redemption without premium
could also result from the failure of the originating financial institutions
to make mortgage loans in sufficient amounts within a specified time period.
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. These bonds were issued under Section 103A of the
Internal Revenue Code, which Section contains certain requirements relating to
the use of the proceeds of such bonds in order for the interest on such bonds
to retain its tax-exempt status. In each case the issuer of the bonds has
covenanted to comply with applicable requirements and bond counsel to such
issuer has issued an opinion that the interest on the bonds is exempt from
Federal income tax under existing laws and regulations. Certain issuers of
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 Fund, the Sponsor at the Date of Deposit 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.

Certain of the Bonds may be health care revenue bonds. 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 may 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 capabilities, competition with other
health care facilities, 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, government
regulation and the termination or restriction of governmental financial
assistance, including that associated with Medicare, Medicaid and other
similar third party payor programs.

Certain of the Bonds may be obligations of public utility issuers, including
those selling wholesale and retail electric power and gas. General problems of
such issuers would include the difficulty in financing large construction
programs in an inflationary period, the limitations on operations and
increased costs and delays attributable to environmental considerations, the
difficulty of the capital market in absorbing utility debt, the difficulty in
obtaining fuel at reasonable prices and the effect of energy conservation. In
addition, Federal, state and municipal governmental authorities may from time
to time review existing, and impose additional, regulations governing the
licensing, construction and operation of nuclear power plants, which may
adversely affect the ability of the issuers of certain of the Bonds in the
portfolio to make payments of principal and/or interest on such Bonds. 

Certain of the Bonds may be obligations of issuers whose revenues are derived
from the sale of water and/or sewerage services. Such Bonds are generally
payable from user fees. The problems of such issuers include the ability to
obtain timely and adequate rate increases, population decline resulting in
decreased user fees, the difficulty of financing large construction programs,
the limitations on operations and increased costs and delays attributable to
environmental considerations, the increasing difficulty of obtaining or
discovering new supplies of fresh water, the effect of conservation programs
and the impact of "no-growth" zoning ordinances.

Certain of the Bonds may be industrial revenue bonds ("IRBs" ). IRBs
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 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 a corporate restructuring pursuant to a
leveraged buy-out, takeover or otherwise. Such a restructuring may result in
the operator of a project becoming highly leveraged which may impact on such
operator's creditworthiness which in turn would have an adverse impact on the
rating and/or market value of such Bonds. Further, the possibility of such a
restructuring may have an adverse impact on the market for and consequently
the value of such Bonds, even though no actual takeover or other action is
ever contemplated or effected.

Certain of the Bonds may be obligations that are secured by lease payments of
a governmental entity (hereinafter called "lease obligations" ). Lease
obligations are often in the form of certificates of participation. Although
the lease obligations do not constitute general obligations of the
municipality for which the municipality's taxing power is pledged, a lease
obligation is ordinarily backed by the municipality's covenant to appropriate
for and make the payments due under the lease obligation. However, certain
lease obligations contain "non-appropriation" clauses which provide
that the municipality has no obligation to make lease payments in future years
unless money is appropriated for such purpose on a yearly basis. A
governmental entity that enters into such a lease agreement cannot obligate
future governments to appropriate for and make lease payments but covenants to
take such action as is necessary to include any lease payments due in its
budgets and to make the appropriations therefor. A governmental entity's
failure to appropriate for and to make payments under its lease obligation
could result in insufficient funds available for payment of the obligations
secured thereby. Although "non-appropriation" lease obligations are
secured by the leased property, disposition of the property in the event of
foreclosure might prove difficult. 

Certain of the Bonds 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 include the
prospect of a declining percentage of the population consisting of "
college" age individuals, possible inability to raise tuitions and fees
sufficiently to cover increased operating costs, the uncertainty of continued
receipt of Federal grants and state funding, and government legislation or
regulations which may adversely affect the revenues or costs of such issuers.

Certain of the Bonds in certain of the Trusts 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. From time to time the air
transport industry has experienced significant variations in earnings and
traffic, due to increased competition, excess capacity, increased costs,
deregulation, traffic constraints and other factors, and several airlines have
experienced severe financial difficulties. 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 may be obligations which are payable from and secured by
revenues derived from the operation of resource recovery facilities. Resource
recovery facilities are designed to process solid waste, generate steam and
convert steam to electricity. Resource recovery bonds may be subject to
extraordinary optional redemption at par upon the occurrence of certain
circumstances, including but not limited to: destruction or condemnation of a
project; contracts relating to a project becoming void, unenforceable or
impossible to perform; changes in the economic availability of raw materials,
operating supplies or facilities necessary for the operation of a project or
technological or other unavoidable changes adversely affecting the operation
of a project; and administrative or judicial actions which render contracts
relating to the projects void, unenforceable or impossible to perform or
impose unreasonable burdens or excessive liabilities. The Sponsor cannot
predict the causes or likelihood of the redemption of resource recovery bonds
in a Trust prior to the stated maturity of the Bonds. 

Certain of the Bonds may have been acquired at a market discount from par
value at maturity. The coupon interest rates on the discount bonds at the time
they were purchased and deposited in a Trust were lower than the current
market interest rates for newly issued bonds of comparable rating and type. If
such interest rates for newly issued comparable bonds increase, the market
discount of previously issued bonds will become greater, and if such interest
rates for newly issued comparable bonds decline, the market discount of
previously issued bonds will be reduced, other things being equal. Investors
should also note that the value of bonds purchased at a market discount will
increase in value faster than bonds purchased at a market premium if interest
rates decrease. Conversely, if interest rates increase, the value of bonds
purchased at a market discount will decrease faster than bonds purchased at a
market premium. In addition, if interest rates rise, the prepayment risk of
higher yielding, premium bonds and the prepayment benefit for lower yielding,
discount bonds will be reduced. A bond purchased at a market discount and held
to maturity will have a larger portion of its total return in the form of
taxable income and capital gain and less in the form of tax-exempt interest
income than a comparable bond newly issued at current market rates. See "
Federal Tax Status." Market discount attributable to interest changes does
not indicate a lack of market confidence in the issue.

Certain of the Bonds may be "zero coupon" bonds. See footnote (6) in
"Notes to Portfolios" in Part I of this Prospectus. 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 substantially greater price fluctuations during
periods of changing market interest rates than are securities of comparable
quality which pay interest.

Certain of the Bonds may have been purchased on a "when, as and if
issued" or "delayed delivery" basis. See footnote (5) in "
Notes to Portfolios" in Part I of this Prospectus. The delivery of any
such Securities may be delayed or may not occur. Interest on these Securities
begins accruing to the benefit of Unitholders on their respective dates of
delivery. To the extent any Securities are actually delivered to the Fund
after their respective expected dates of delivery, Unitholders who purchase
their Units prior to the date such Securities are actually delivered to the
Trustee would be required to adjust their tax basis in their Units for a
portion of the interest accruing on such Securities during the interval
between their purchase of Units and the actual delivery of such Securities. As
a result of any such adjustment, the Estimated Current Returns during the
first year would be slightly lower than those stated herein which would be the
returns after the first year, assuming the portfolio of a Trust and estimated
annual expenses other than that of the Trustee (which may be reduced in the
first year only) do not vary from that set forth under "Per Unit
Information" for the applicable Trust in Part I of this Prospectus.
Unitholders will be "at risk" with respect to all Securities in the
portfolios including "when, as and if issued" and "delayed
delivery" Securities (i.e., may derive either gain or loss from
fluctuations in the evaluation of such Securities) from the date they commit
for Units. For a discussion of the Sponsor's obligations in the event of the
failure of any contract for the purchase of any of the Securities and limited
right to substitute other tax-exempt bonds to replace any failed contract, see
"Replacement Bonds" below.

Certain of the Bonds may be subject to redemption prior to their stated
maturity date pursuant to sinking fund provisions, call provisions or
extraordinary optional or mandatory redemption provisions or otherwise. A
sinking fund is a reserve fund accumulated over a period of time for
retirement of debt. A callable debt obligation is one which is subject to
redemption or refunding prior to maturity at the option of the issuer. A
refunding is a method by which a debt obligation is redeemed, at or before
maturity, by the proceeds of a new debt obligation. In general, call
provisions are more likely to be exercised when the offering side valuation is
at a premium over par than when it is at a discount from par. The exercise of
redemption or call provisions will (except to the extent the proceeds of the
called Bonds are used to pay for Unit redemptions) result in the distribution
of principal and may result in a reduction in the amount of subsequent
interest distributions; it may also affect the current return on Units of the
Trust involved. Each Trust portfolio contains a listing of the sinking fund
and call provisions, if any, with respect to each of the debt obligations.
Extraordinary optional redemptions and mandatory redemptions result from the
happening of certain events. Generally, events that may permit the
extraordinary optional redemption of Bonds or may require the mandatory
redemption of Bonds include, among others: a final determination that the
interest on the Bonds is taxable; the substantial damage or destruction by
fire or other casualty of the project for which the proceeds of the Bonds were
used; an exercise by a local, state or Federal governmental unit of its power
of eminent domain to take all or substantially all of the project for which
the proceeds of the Bonds were used; changes in the economic availability of
raw materials, operating supplies or facilities or technological or other
changes which render the operation of the project for which the proceeds of
the Bonds were used uneconomic; changes in law or an administrative or
judicial decree which renders the performance of the agreement under which the
proceeds of the Bonds were made available to finance the project impossible or
which creates unreasonable burdens or which imposes excessive liabilities,
such as taxes, not imposed on the date the Bonds are issued on the issuer of
the Bonds or the user of the proceeds of the Bonds; an administrative or
judicial decree which requires the cessation of a substantial part of the
operations of the project financed with the proceeds of the Bonds; an
overestimate of the costs of the project to be financed with the proceeds of
the Bonds resulting in excess proceeds of the Bonds which may be applied to
redeem Bonds; or an underestimate of a source of funds securing the Bonds
resulting in excess funds which may be applied to redeem Bonds. The issuer of
certain Bonds in a Trust may have sold or reserved the right to sell, upon the
satisfaction of certain conditions, to third parties all or any portion of its
rights to call Bonds in accordance with the stated redemption provisions of
such Bonds. In such a case the issuer no longer has the right to call the
Bonds for redemption unless it reacquires the rights from such third party. A
third party pursuant to these rights may exercise the redemption provisions
with respect to a Bond at a time when the issuer of the Bond might not have
called a Bond for redemption had it not sold such rights. The Sponsor is
unable to predict all of the circumstances which may result in such redemption
of an issue of Bonds. See "Portfolio" for each Trust and footnote (3)
in the "Notes to Portfolios" in Part I of this Prospectus. See also
the discussion of single family mortgage and multi-family revenue bonds above
for more information on the call provisions of such bonds.

To the best knowledge of the Sponsor, there is no litigation pending as of the
Date of Deposit in respect of any Securities which might reasonably be
expected to have a material adverse effect upon the Fund or any of the Trusts.
At any time after the Date of Deposit, litigation may be initiated on a
variety of grounds with respect to Securities in the Fund. Such litigation,
as, for example, suits challenging the issuance of pollution control revenue
bonds under environmental protection statutes, may affect the validity of such
Securities or the tax-free nature of the interest thereon. While the outcome
of litigation of such nature can never be entirely predicted, the Fund has
received or will receive opinions of bond counsel to the issuing authorities
of each Security on the date of issuance to the effect that such Securities
have been validly issued and that the interest thereon is exempt from Federal
income tax. In addition, other factors may arise from time to time which
potentially may impair the ability of issuers to meet obligations undertaken
with respect to the Securities.

Replacement Bonds. Because certain of the Securities in the Fund may from time
to time under certain circumstances be sold or redeemed or will mature in
accordance with their terms and because the proceeds from such events will be
distributed to Unitholders and will not be reinvested, no assurance can be
given that any Trust will retain for any length of time its present size and
composition. Neither the Sponsor nor the Trustee shall be liable in any way
for any default, failure or defect in any Security. In the event of a failure
to deliver any Security that has been purchased for the Fund under a contract,
including those Securities purchased on a "when, as and if issued" 
basis ("Failed Bonds" ), the Sponsor is authorized under the Trust
Agreement to direct the Trustee to acquire other bonds ("Replacement
Bonds" ) to make up the original corpus of the Fund.

The Replacement Bonds must be purchased within 20 days after delivery of the
notice of the failed contract and the purchase price (exclusive of accrued
interest) 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
states or territories of the United States or political subdivisions thereof
and, in the case of replacement of bonds in a State Trust, shall have the
benefit of an exemption from state taxation of interest to an extent equal to
or greater than that of the bonds they replace, (ii) must have a fixed
maturity date of at least 10 years in the case of an IM-IT, IM-IT Discount,
State (other than a State Intermediate Laddered Maturity Trust) or National
Quality Trust or, in the case of an IM-IT Limited Maturity, IM-IT
Intermediate, State Intermediate Laddered Maturity or IM-IT Short Intermediate
Trust, must have a fixed maturity date within the range set forth under "
Unitholder Explanations--Settlement of Bonds in the Trusts--The Fund" ,
(iii) must be purchased at a price that results in a yield to maturity and in
a current return, in each case as of the Date of Deposit, at least equal to
that of the Failed Bonds, (iv) shall not be "when, as and if issued" 
bonds, (v) must be rated "BBB-" or better in the case of the Insured
Trusts and "A-" or better in the case of the Quality Trusts by
Standard & Poor's or "Baa" or better in the case of the Insured Trusts
and "A" or better in the case of the Quality Trusts by Moody's and
(vi) with respect to each Insured Trust, must be insured by one of the
Preinsured Bond Insurers or be eligible for (and when acquired be insured
under) the insurance obtained by such Insured Trust. Whenever a Replacement
Bond has been acquired for the Fund, the Trustee shall, within five days
thereafter, notify all Unitholders of the affected Trust of the acquisition of
the Replacement Bond and shall, on the next monthly distribution date which is
more than 30 days thereafter, make a pro rata distribution of the amount, if
any, by which the cost to the affected Trust of the Failed Bond exceeded the
cost of the Replacement Bond plus accrued interest. Once the original corpus
of a Trust is acquired, the Trustee will have no power to vary the investment
of the Trust; i.e., the Trust will have no managerial power to take advantage
of market variation to improve a Unitholder's investment.

If the right of limited substitution described in the preceding paragraph
shall not be 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 affected Trust and distribute the principal
and accrued interest (at the coupon rate of such Failed Bonds to the date the
Failed Bonds are removed from the Fund) attributable to such Failed Bonds not
more than 30 days after such removal or such earlier time as the Trustee in
its sole discretion deems to be in the interest of the Unitholders. All such
interest paid to a Unitholder which accrued after the expected date of
settlement for purchase of his Units will be paid by the Sponsor and
accordingly will not be treated as tax-exempt income. In the event a
Replacement Bond should not be acquired by the Fund, the Estimated Net Annual
Interest Income per Unit for the affected Trust would be reduced and the
Estimated Current Return and Estimated Long-Term Return thereon might be
lowered. In addition, Unitholders should be aware that they may not be able at
the time of receipt of such principal to reinvest such proceeds in other
securities at a yield equal to or in excess of the yield which such proceeds
were earning to Unitholders in the affected Trust.

Distributions. Distributions of interest received by the Fund, pro rated on an
annual basis, will be made on a monthly basis unless the Unitholder elects to
receive them semi-annually. The first such distribution will be in the amount
indicated under "Per Unit Information" for the applicable Trust in
Part I of this Prospectus and will be made on the twenty-fifth day of the
month indicated under "Initial Distribution" therein to Unitholders of
record on the tenth day of such month. The first distribution of funds from
the Principal Account, if any, will be made on the first semi-annual
distribution date to Unitholders of record on the first semi-annual record
date, and thereafter such distributions will be made on a semi-annual basis,
except under certain special circumstances (see "Unitholder
Explanations--Public Offering--Distributions of Interest and Principal" ).

Change of Distribution Option. The plan of distribution selected by a
Unitholder will remain in effect until changed. Unitholders purchasing Units
in the secondary market will initially receive distributions in accordance
with the election of the prior owner. Unitholders may change the plan of
distribution in which they are participating. For convenience of Unitholders,
the Trustee will furnish a card for this purpose; cards may also be obtained
upon request from the Trustee. Unitholders desiring to change their plan of
distribution may so indicate on the card and return it together with their
certificate and such other documentation that the Trustee may then require, to
the Trustee. Certificates should only be sent by registered or certified mail
to minimize the possibility of their being lost or stolen. If the card and
certificate are properly presented to the Trustee, the change will become
effective as of the opening of business on the first day after the next
succeeding semi-annual record date and will be effective, unless further
changed, for all subsequent distributions.

Certificates. The Trustee is authorized to treat as the record owner of Units
that person who is registered as such owner on the books of the Trustee.
Ownership of Units of each Trust is evidenced by separate registered
certificates executed by the Trustee and the Sponsor unless a Unitholder or
the Unitholder's registered broker-dealer makes a written request to the
Trustee that ownership be in book entry form. Units are transferable by making
a written request to the Trustee and, in the case of Units evidenced as a
certificate, by presentation and surrender of such certificate to the Trustee
properly endorsed or accompanied by a written instrument or instruments of
transfer. A Unitholder must sign such written request, or such certificate
transfer instrument exactly as his name appears on the records of the Trustee,
and on the face of any certificate representing Units to be transferred, with
the signature guaranteed by a participant in the Securities Transfer Agents
Medallion Program ("STAMP" ) or such other signature guaranty program
in addition to, or in substitution for, STAMP, as may be accepted by the
Trustee. In certain instances the Trustee may require additional documents
such as, but not limited to, trust instruments, certificates of death,
appointments as executor or administrator or certificates of corporate
authority. Certificates will be issued in denominations of one Unit or any
multiple thereof. Certificates for Units will bear appropriate notations on
their face indicating which plan of distribution has been selected in respect
thereof. If a change in the plan of distribution is made, the existing
certificate must be surrendered to the Trustee and a new certificate will be
issued, at no charge to the Unitholder, to reflect the currently effective
plan of distribution.

Although no such charge is now made or contemplated, the Trustee may require a
Unitholder to pay a reasonable fee for each certificate re-issued (other than
as a result of a change in plan of distribution) or transferred and to pay any
governmental charge that may be imposed in connection with each such transfer
or interchange. Destroyed, stolen, mutilated or lost certificates will be
replaced upon delivery to the Trustee of satisfactory indemnity, evidence of
ownership and payment of expenses incurred. Mutilated certificates must be
surrendered to the Trustee for replacement.

ESTIMATED CURRENT RETURNS AND ESTIMATED LONG-TERM RETURNS

- --------------------------------------------------------------------------
As of the close of business on the day before the Date of Deposit (except for
an IM-IT, an IM-IT Discount or a Pennsylvania IM-IT Trust as of 8:00 A.M.
Central Time on the Date of Deposit) the Estimated Current Returns and the
Estimated Long-Term Returns, under the monthly and semi-annual distribution
plans, were as set forth in the "Per Unit Information" for each Trust
in Part I of this Prospectus. 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 and the Evaluator and with
the principal prepayment, redemption, maturity, exchange or sale of Securities
while the Public Offering Price will vary with changes in the offering price
of the underlying Securities; 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
Securities in a Trust and (2) takes into account the expenses and sales charge
associated with each Trust Unit. Since the market values and estimated
retirements of the Securities 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. The 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 the
Estimated Current Return calculation includes only net annual interest income
and Public Offering Price.

In order to acquire certain of the Securities contracted for by the Sponsor
for deposit in the Fund, it may be necessary for the Sponsor or Trustee to pay
on the settlement dates for delivery of such Securities amounts covering
accrued interest on such Securities which exceed the amounts which will be
made available through cash furnished by the Sponsor on the Date of Deposit,
which amount of cash may exceed the interest which would accrue to the First
Settlement Date. The Trustee has agreed to pay for any amounts necessary to
cover any such excess and will be reimbursed therefor when funds become
available from interest payments on the particular Securities with respect to
which such payments may have been made. Also, since interest on any "when,
as and if issued" Securities does not begin accruing as tax-exempt
interest income to the benefit of Unitholders until the date of delivery, the
Trustee may reduce its fee (and to the extent necessary pay Trust expenses) in
order to maintain (or in some cases approach) the same estimated net annual
interest incomes during the first year of the Trusts' operations as described
under "Per Unit Information" for the applicable Trust in Part I of
this Prospectus.

ACCRUED INTEREST

- --------------------------------------------------------------------------
Accrued interest is an accumulation of unpaid interest on securities which
generally is paid semi-annually, although each Trust accrues such interest
daily. Because of this, a Trust always has an amount of interest earned but
not yet collected by the Trustee. For this reason, with respect to sales
settling subsequent to the First Settlement Date, the Public Offering Price of
Units will have added to it the proportionate share of accrued interest to the
date of settlement. Unitholders will receive on the next distribution date of
a Trust the amount, if any, of accrued interest paid on their Units.

In an effort to reduce the amount of accrued interest which would otherwise
have to be paid by Unitholders, the Trustee will advance the amount of accrued
interest to the Sponsor as the Unitholder of record as of the First Settlement
Date. Consequently, the amount of accrued interest to be added to the Public
Offering Price of Units will include only accrued interest from the First
Settlement Date to the date of settlement, less any distributions from the
Interest Account subsequent to the First Settlement Date. See "Unitholder
Explanations--Public Offering--Distributions of Interest and Principal." 

Because of the varying interest payment dates of the Securities, accrued
interest at any point in time will be greater than the amount of interest
actually received by a Trust and distributed to Unitholders. If a Unitholder
sells or redeems all or a portion of his Units, he will be entitled to receive
his proportionate share of the accrued interest from the purchaser of his
Units. Since the Trustee has the use of the funds held in the Interest Account
for distributions to Unitholders and since such Account is
non-interest-bearing to Unitholders, the Trustee benefits thereby.

PUBLIC OFFERING

- --------------------------------------------------------------------------
General. Units are offered at the Public Offering Price. During the initial
offering period the Public Offering Price is based on the aggregate offering
price of the Securities in such Trust's portfolio, a sales charge of 4.9% of
the Public Offering Price (5.152% of the aggregate offering price of the
Securities) for an IM-IT, a State (other than a State Intermediate Laddered
Maturity Trust) or a National Quality Trust, 4.3% of the Public Offering Price
(4.493% of the aggregate offering price of the Securities) for an IM-IT
Limited Maturity Trust, 4.0% of the Public Offering Price (4.167% of the
aggregate offering price of the Securities) for an IM-IT Discount Trust, 3.9%
of the Public Offering Price (4.058% of the aggregate offering price of the
Securities) for an IM-IT Intermediate Trust, 3.0% of the Public Offering Price
(3.093% of the aggregate offering price of the Securities) for a State
Intermediate Laddered Maturity Trust and 2.0% of the Public Offering Price
(2.041% of the aggregate offering price of the Securities) for an IM-IT Short
Intermediate Trust, cash, if any, in the Principal Account held or owned by
such Trust, and accrued interest, if any. After the initial public offering
period, the secondary market public offering price is based on the bid prices
of the Securities in each Trust, an applicable sales charge as determined in
accordance with the table set forth below, which is based upon the estimated
long-term return life of each Trust, cash, if any, in the Principal Account
held or owned by such Trust, and accrued interest, if any. For purposes of
computation, Bonds will be deemed to mature on their expressed maturity dates
unless: (a) the Bonds have been called for redemption or are subject to
redemption at 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 computation will be that different
sales charge rates will be applied to each Trust based upon the estimated
long-term return life of such Trust's Portfolio, in accordance with the
following schedule: 

<TABLE>
<CAPTION>
                                                Years To Maturity
Years To Maturity    Sales Charge                                    Sales Charge
<S>                  <C>                        <C>                  <C>
1                    1.010 %                    12                   4.712 %
2                    1.523                      13                   4.822
3                    2.041                      14                   4.932
4                    2.302                      15                   5.042
5                    2.564                      16                   5.152
6                    2.828                      17                   5.263
7                    3.093                      18                   5.374
8                    3.627                      19                   5.485
9                    4.167                      20                   5.597
10                   4.384                      21 to 30             5.708
11                   4.603                                                                           
</TABLE>

The sales charges in the above table are expressed as a percentage of the
aggregate bid prices of the Securities in a Trust. Expressed as a percent of
the Public Offering Price, the sales charge on a Trust consisting entirely of
a portfolio of Bonds with 15 years to maturity would be 4.80%. The sales
charges in the table above do not apply to IM-IT Discount Trusts. The
applicable secondary market sales charges for an IM-IT Discount Trust are set
forth in Part I of any Prospectus by which such Trust is offered. The sales
charge applicable to quantity purchases during the initial offering period is,
however, reduced on a graduated basis to any person acquiring 100 or more
Units as follows: 

<TABLE>
<CAPTION>
                                             Dollar Amount of Sales
                                            Charge Reduction Per Unit
                        -------------------------------------------------------------------
                        IM-IT, State
                        (other than a
                        State
                        Intermediate
                        Laddered
                        Maturity Trust)  IM-IT Short
Aggregate Number of     and National     Intermediate    IM-IT Discount
Units Purchased*        Quality Trusts   Trust           Trust            Other Trusts
                        ---------------- --------------- --------------- ------------------
<S>                     <C>              <C>             <C>             <C>
100-249 Units.......... $4.00            $2.00           $         2.00  $4.00             
250-499 Units.......... $6.00            $3.00           $         4.00  $6.00             
500-999 Units.......... $14.00           $4.00           $         6.00  $9.00             
1,000 or more Units.... $19.00           $6.00           $         8.00  $11.00            
____________________
* The breakpoint sales charges are also applied on a dollar basis utilizing a breakpoint   
equivalent in the above table of $10 per Unit and will be applied on whichever basis is    
more favorable to the investor. The breakpoints will be adjusted to take into              
consideration purchase orders stated in dollars which cannot be completely fulfilled due   
to the Trusts' requirement that only whole Units be issued.
</TABLE>

Any such reduced sales charge shall be the responsibility of the selling
Underwriter, broker, dealer or agent. The Sponsor will, however, increase the
concession or agency commission for such quantity purchases. See "Trust
Administration--General--Unit Distribution" . This reduced sales charge
structure will apply on all purchases by the same person from any one
Underwriter or dealer of units of Van Kampen American Capital-sponsored unit
investment trusts which are being offered in the initial offering period (a)
on any one day (the "Initial Purchase Date" ) or (b) on any day
subsequent to the Initial Purchase Date, if (1) the units purchased are of a
unit investment trust purchased on the Initial Purchase Date, and (2) the
person purchasing the units purchased a sufficient amount of units on the
Initial Purchase Date to qualify for a reduced sales charge on such date. In
the event units of more than one trust are purchased on the Initial Purchase
Date, the aggregate dollar amount of such purchases will be used to determine
whether purchasers are eligible for a reduced sales charge. Such aggregate
dollar amount will be divided by the public offering price per unit (on the
day preceding the date of purchase) of each respective trust purchased to
determine the total number of units which such amount could have purchased of
each individual trust. Purchasers must then consult the applicable trust's
prospectus to determine whether the total number of units which could have
been purchased of a specific trust would have qualified for a reduced sales
charge and, if so qualified, the amount of such reduction. Assuming a
purchaser qualifies for a sales charge reduction or reductions, to determine
the applicable sales charge reduction or reductions it is necessary to
accumulate all purchases made on the Initial Purchase Date and all purchases
made in accordance with (b) above. Units purchased in the name of the spouse
of a purchaser or in the name of a child of such purchaser under 21 years of
age will be deemed for the purposes of calculating the applicable sales charge
to be additional purchases by the purchaser. The reduced sales charges will
also be applicable to a trustee or other fiduciary purchasing securities for
one or more trust estate or fiduciary accounts.

Employees of Van Kampen American Capital Distributors Inc. and its affiliates
may purchase Units of the Trust at the current Public Offering Price less the
underwriting commission or less the dealer's concession in the absence of an
underwriting commission. Registered representatives of selling Underwriters
may purchase Units of the Fund at the current Public Offering Price less the
underwriting commission during the initial offering period and less the
dealer's concession for secondary market transactions. Registered
representatives of selling brokers, dealers, or agents may purchase Units of
the Fund at the current Public Offering Price less the dealer's concession
during the initial offering period and for secondary market transactions.

Purchasers of units of any two consecutive series of a Trust may aggregate
purchases of units of such series for purposes of the sales charge reduction
for quantity purchases described in the table above, provided that at the time
of the initial purchase of units of such purchaser submitted a purchase order
for at least 100 units that was partially unfulfilled due to a lack of units
of such Trust series available for sale at such time. The sales charge
reduction shall be applied to the subsequent purchase of units such that the
aggregate sales charge reduction applicable to both purchases will equal the
amount described in the table above.

Units may be purchased in the primary or secondary market at the Public
Offering Price (for purchases which do not qualify for a sales charge
reduction for quantity purchases) less the concession the Sponsor typically
allows to brokers and dealers for purchases (see "Trust
Administration--General--Unit Distribution" ) by (1) investors who purchase
Units through registered investment advisers, certified financial planners and
registered broker-dealers who in each case either charge periodic fees for
financial planning, investment advisory or asset management services, or
provide such services in connection with the establishment of an investment
account for which a comprehensive "wrap fee" charge is imposed, (2)
bank trust departments investing funds over which they exercise exclusive
discretionary investment authority and that are held in a fiduciary, agency,
custodial or similar capacity, (3) any person who for at least 90 days, has
been an officer, director or bona fide employee of any firm offering Units for
sale to investors or their immediate family members (as described above) and
(4) officers and directors of bank holding companies that make Units available
directly or through subsidiaries or bank affiliates. Notwithstanding anything
to the contrary in this Prospectus, such investors, bank trust departments,
firm employees and bank holding company officers and directors who purchase
Units through this program will not receive sales charge reductions for
quantity purchases.

Offering Price. The Public Offering Price of the Units will vary from the
amounts stated under "Summary of Essential Financial Information" in
Part I of this Prospectus in accordance with fluctuations in the prices of the
underlying Securities in each Trust.

As indicated above, the price of the Units as of the date the Securities were
deposited in each Trust was determined by adding to the aggregate offering
price of the Securities of a Trust an amount equal to the applicable sales
charge expressed as a percentage of the aggregate offering price of the
Securities and dividing the sum so obtained by the number of Units
outstanding. This computation produced a gross underwriting commission equal
to such sales charge expressed as a percentage of the Public Offering Price.
Such price determination as of the close of business on the day before the
Date of Deposit (except for an IM-IT, IM-IT Discount or a Pennsylvania IM-IT
Trust as of 8:00 A.M. Central Time on the Date of Deposit) was made on the
basis of an evaluation of the Securities in each Trust prepared by Interactive
Data Corporation, a firm regularly engaged in the business of evaluating,
quoting or appraising comparable securities. After the close of business on
the day before the Date of Deposit (except for an IM-IT, IM-IT Discount or a
Pennsylvania IM-IT Trust after 8:00 A.M. Central Time on the Date of Deposit)
and during the period of initial offering, the Evaluator will appraise or
cause to be appraised daily the value of the underlying Securities of each
Trust as of the Evaluation Time on days the New York Stock Exchange is open
for business and will adjust the Public Offering Price of the Units
commensurate with such appraisal. Such Public Offering Price will be effective
for all orders received at or prior to the Evaluation Time on each such day.
Orders received by the Trustee, Sponsor or any Underwriter for purchases,
sales or redemptions after that time, or on a day when the New York Stock
Exchange is closed, will be held until the next determination of price. For
secondary market sales the Public Offering Price per Unit will be equal to the
aggregate bid price of the Securities in the Trust plus an amount equal to the
applicable secondary market sales charge expressed as a percentage of the
aggregate bid price of the Securities and dividing the sum so attained by the
number of Units then outstanding. This computation produces a gross commission
equal to such sales charge expressed as a percentage of the Public Offering
Price. For secondary market purposes such appraisal and adjustment with
respect to a Trust will be made by the Evaluator as of the Evaluation Time on
days in which the New York Stock Exchange is open for each day on which any
Unit of such Trust is tendered for redemption and it shall determine the
aggregate value of any Trust as of the Evaluation Time on such other days as
may be necessary.

The aggregate price of the Securities in each Trust has been and will be
determined on the basis of bid prices or offering prices, as is appropriate,
(a) on the basis of current market prices for the Securities obtained from
dealers or brokers who customarily deal in bonds comparable to those held by
the Fund; (b) if such prices are not available for any particular Securities,
on the basis of current market prices for comparable bonds; (c) by causing the
value of the Securities to be determined by others engaged in the practice of
evaluation, quoting or appraising comparable bonds; or (d) by any combination
of the above. Market prices of the Securities will generally fluctuate with
changes in market interest rates. Unless Bonds are in default in payment of
principal or interest or in significant risk of such default, the Evaluator
will not attribute any value to the insurance obtained by an Insured Trust, if
any.

The Evaluator will consider in its evaluation of Bonds which are in default in
payment of principal or interest or, in the Sponsor's opinion, in significant
risk of such default (the "Defaulted Bonds" ) the value of the
insurance guaranteeing interest and principal payments. The value of the
insurance will be equal to the difference between (i) the market value of
Defaulted Bonds assuming the exercise of the right to obtain Permanent
Insurance (less the insurance premiums and related expenses attributable to
the purchase of Permanent Insurance) and (ii) the market value of such
Defaulted Bonds not covered by Permanent Insurance. In addition, the Evaluator
will consider the ability of the affected Portfolio Insurer to meet its
commitments under any Trust insurance policy, including the commitments to
issue Permanent Insurance. It is the position of the Sponsor that this is a
fair method of valuing the Bonds and the insurance obtained by an Insured
Trust and reflects a proper valuation method in accordance with the provisions
of the Investment Company Act of 1940. No value has been ascribed to insurance
obtained by an Insured Trust, if any, as of the date of this Prospectus.

The initial or primary Public Offering Price of the Units is equal to the
offering price per Unit of the underlying Securities in each Trust plus the
applicable sales charge plus interest accrued but unpaid from the First
Settlement Date to the date of settlement. The secondary market Public
Offering Price is equal to the bid price per Unit of the Securities in each
Trust plus the applicable sales charge plus accrued interest. The offering
price of Securities in each Trust may be expected to average approximately
0.5%-1% more than the bid price of such Securities. On the Date of Deposit,
the offering side evaluations of the Securities in the Trusts were higher than
the bid side evaluations of such Securities by the respective amounts
indicated in "Notes to Portfolios" in Part I of this Prospectus.

Although payment is normally made three business days following the order for
purchase, payment may be made prior thereto. A person will become the owner of
Units on the date of settlement provided payment has been received. Cash, if
any, made available to the Sponsor prior to the date of settlement for the
purchase of Units may be used in the Sponsor's business and may be deemed to
be a benefit to the Sponsor, subject to the limitations of the Securities
Exchange Act of 1934. Delivery of certificates representing Units so ordered
will be made three business days following such order or shortly thereafter.
See "Redemption of Units" below for information regarding the ability
to redeem Units ordered for purchase.

Market for Units. During the initial public offering period, the Sponsor
and/or certain of the Underwriters intend to offer to purchase Units at a
price equivalent to the Public Offering Price which is based upon the
aggregate offering price per Unit of the underlying Securities in each Trust
plus accrued interest to the date of settlement less the related sales
commission. Afterward, although not obligated to do so, the Sponsor intends
to, and certain of the other Underwriters may, maintain a market for the Units
offered hereby and to offer continuously to purchase such Units at prices,
subject to change at any time, based upon the aggregate bid prices of the
Securities in the portfolio of each Trust plus interest accrued to the date of
settlement and plus any principal cash on hand, less any amounts representing
taxes or other governmental charges payable out of the Trust and less any
accrued Trust expenses. If the supply of Units exceeds demand or if some other
business reason warrants it, the Sponsor and/or the Underwriters may either
discontinue all purchases of Units or discontinue purchases of Units at such
prices. In the event that a market is not maintained for the Units and the
Unitholder cannot find another purchaser, a Unitholder of any Trust desiring
to dispose of his Units may be able to dispose of such Units only by tendering
them to the Trustee for redemption at the Redemption Price, which is based
upon the aggregate bid price of the Securities in the portfolio of such Trust
plus any accrued interest. The aggregate bid prices of the underlying
Securities in a Trust are expected to be less than the related aggregate
offering prices. See "Redemption of Units" below. A Unitholder who
wishes to dispose of his Units should inquire of his 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.

Distributions of Interest and Principal. Interest received by the Fund,
including that part of the proceeds of any disposition of Securities which
represents accrued interest, is credited by the Trustee to the Interest
Account for the appropriate Trust. Other receipts are credited to the
Principal Account for the appropriate Trust. Interest received by the Fund
after deduction of amounts sufficient to reimburse the Trustee, without
interest, for any amounts advanced and paid to the Sponsor as the Unitholder
of record as of the First Settlement Date (see "Public Offering--Offering
Price" above) will be distributed on or shortly after the twenty-fifth day
of each month on a pro rata basis to Unitholders of record of a Trust as of
the preceding record date who are entitled to distributions at that time under
the plan of distribution chosen. All distributions will be net of applicable
expenses. The pro rata share of cash in the Principal Account of a Trust will
be computed as of the date set forth under "Per Unit Information" for
the applicable Trust in Part I of this Prospectus, and thereafter as of the
semi-annual record date, and distributions to the Unitholders as of such
record date will be made on or shortly after the twenty-fifth day of such
month. Proceeds received from the disposition of any of the Securities after
such record date and prior to the following distribution date will be held in
the Principal Account and not distributed until the next distribution date.
The Trustee is not required to pay interest on funds held in any Principal or
Interest Account (but may itself earn interest thereon and therefore benefits
from the use of such funds) nor to make a distribution from the Principal
Account unless the amount available for distribution therein shall equal at
least $1.00 per Unit. However, should the amount available for distribution in
the Principal Account equal or exceed $10.00 per Unit, the Trustee will make a
special distribution from the Principal Account on the next succeeding monthly
distribution date to holders of record on the related monthly record date.

The distribution to the Unitholders of a Trust as of each record date after
the First Settlement Date will be made on the following distribution date or
shortly thereafter and shall consist of an amount substantially equal to such
portion of the Unitholder's pro rata share of the estimated net annual
interest income in the Interest Account of such Trust after deducting
estimated expenses attributable as is consistent with the distribution plan
chosen. Because interest payments are not received by the Fund at a constant
rate throughout the year, such interest distribution may be more or less than
the amount credited to such Interest Account as of the record date. For the
purpose of minimizing fluctuations in the distributions from an Interest
Account, the Trustee is authorized to advance such amounts as may be necessary
to provide interest distributions of approximately equal amounts. The Trustee
shall be reimbursed for any such advances from funds in the applicable
Interest Account on the ensuing record date. Persons who purchase Units
between a record date and a distribution date will receive their first
distribution on the second distribution date after the purchase, under the
applicable plan of distribution.

On or before the twenty-fifth day of each month, the Trustee will deduct from
the Interest Account and, to the extent funds are not sufficient therein, from
the Principal Account, amounts necessary to pay the expenses of the Fund (as
determined on the basis set forth under "Trust Administration--Fund
Administration and Expenses" ). The Trustee also may withdraw from said
Accounts such amounts, if any, as it deems necessary to establish a reserve
for any governmental charges payable out of the Fund. Amounts so withdrawn
shall not be considered a part of the Fund's assets until such time as the
Trustee shall return all or any part of such amounts to the appropriate
Accounts. In addition, the Trustee may withdraw from the Interest and
Principal Accounts such amounts as may be necessary to cover purchases of
Replacement Bonds and redemptions of Units by the Trustee.

Reinvestment Option. Unitholders of unit investment trusts sponsored by Van
Kampen American Capital Distributors, Inc., may elect to have each
distribution of interest income, capital gains and/or principal on their Units
automatically reinvested in shares of any Van Kampen American Capital mutual
funds (except for B shares) which are registered in the Unitholder's state of
residence. Such mutual funds are hereinafter collectively referred to as the
"Reinvestment Funds" .

Each Reinvestment Fund has investment objectives which differ in certain
respects from those of the Trusts. The prospectus relating to each
Reinvestment Fund describes the investment policies of such fund and sets
forth the procedures to follow to commence reinvestment. A Unitholder may
obtain a prospectus for the respective Reinvestment Funds from Van Kampen
American Capital Distributors, Inc. at One Parkview Plaza, Oakbrook Terrace,
Illinois 60181. Texas residents who desire to reinvest may request that a
broker-dealer registered in Texas send the prospectus relating to the
respective fund.

After becoming a participant in a reinvestment plan, each distribution of
interest income, capital gains and/or principal on the participant's Units
will, on the applicable distribution date, automatically be applied, as
directed by such person, as of such distribution date by the Trustee to
purchase shares (or fractions thereof) of the applicable Reinvestment Fund at
a net asset value as computed as of the close of trading on the New York Stock
Exchange on such date. Unitholders with an existing Guaranteed Reinvestment
Option (GRO) Program account (whereby a sales charge is imposed on
distribution reinvestments) may transfer their existing account into a new GRO
account which allows purchases of Reinvestment Fund shares at net asset value
as described above. 

Confirmations of all reinvestments by a Unitholder into a Reinvestment Fund
will be mailed to the Unitholder by such Reinvestment Fund. A participant may
elect to terminate his or her reinvestment plan and receive future
distributions of his or her Units in cash by notifying the Trustee in writing
at any time prior to five days before the next distribution date. There will
be no charge or other penalty for such termination. Each Reinvestment Fund,
its sponsor and investment adviser shall have the right to terminate at any
time the reinvestment plan relating to such fund.

Unitholders of New York Trusts, other than residents of Massachusetts, may
elect to have distributions reinvested in shares of First Investors New York
Insured Tax Free Fund, Inc. subject to a sales charge of $1.50 per $100
reinvested (paid to First Investors Management Company, Inc.).

Redemption of Units. A Unitholder may redeem all or a portion of his Units by
tender to the Trustee, at its Unit Investment Trust Division, 101 Barclay
Street, 20th Floor, New York, New York 10286, of the certificates representing
the Units to be redeemed, duly endorsed or accompanied by proper instruments
of transfer with signature guaranteed (or by providing satisfactory indemnity,
as in connection with lost, stolen or destroyed certificates) and by payment
of applicable governmental charges, if any. Thus, redemption of Units cannot
be effected until certificates representing such Units have been delivered by
the person seeking redemption or satisfactory indemnity provided. No
redemption fee will be charged. On the third business day following such
tender, the Unitholder will receive in cash an amount for each Unit equal to
the Redemption Price per Unit next computed after receipt by the Trustee of
such tender of Units. The "date of tender" is deemed to be the date on
which Units are received by the Trustee, except that as regards Units received
after the Evaluation Time on days of trading on the New York Stock Exchange,
the date of tender is the next day on which such Exchange is open for trading
and such Units will be deemed to have been tendered to the Trustee on such day
for redemption at the Redemption Price computed on that day.

Under regulations issued by the Internal Revenue Service, the Trustee will be
required to withhold a specified percentage of the principal amount of a Unit
redemption if the Trustee has not been furnished the redeeming Unitholder's
tax identification number in the manner required by such regulations. Any
amount so withheld is transmitted to the Internal Revenue Service and may be
recovered by the Unitholder only when filing a return. Under normal
circumstances the Trustee obtains the Unitholder's tax identification number
from the selling broker. However, at any time a Unitholder elects to tender
Units for redemption, such Unitholder should provide a tax identification
number to the Trustee in order to avoid this possible "back-up
withholding" in the event the Trustee has not been previously provided
such number.

Accrued interest paid on redemption shall be withdrawn from the Interest
Account of such Trust or, if the balance therein is insufficient, from the
Principal Account of such Trust. All other amounts will be withdrawn from the
Principal Account of such Trust. The Trustee is empowered to sell underlying
Securities of a Trust in order to make funds available for redemption. Units
so redeemed shall be cancelled.

The Redemption Price per Unit (as well as the secondary market Public Offering
Price) will be determined on the basis of the bid price of the Securities in
each Trust, while the initial and primary Public Offering Price of Units will
be determined on the basis of the offering price of the Securities in each
Trust, as of the Evaluation Time on days of trading on the New York Stock
Exchange on the date any such determination is made. On the Date of Deposit
the Public Offering Price per Unit (which is based on the offering prices of
the Bonds in each Trust and includes the sales charge) exceeded the value at
which Units could have been redeemed (based upon the current bid prices of the
Securities in such Trust) by the amount shown under "Summary of Essential
Financial Information" in Part I of this Prospectus. While the Trustee has
the power to determine the Redemption Price per Unit when Units are tendered
for redemption, such authority has been delegated to the Evaluator which
determines the price per Unit on a daily basis. The Redemption Price per Unit
is the pro rata share of each Unit in each Trust on the basis of (i) the cash
on hand in such Trust or moneys in the process of being collected, (ii) the
value of the Securities in such Trust based on the bid prices of the
Securities therein, except for cases in which the value of insurance has been
included, (iii) interest accrued thereon, less (a) amounts representing taxes
or other governmental charges payable out of such Trust and (b) the accrued
expenses of such Trust. The Evaluator may determine the value of the
Securities in each Trust by employing any of the methods set forth in "
Public Offering--Offering Price" above. In determining the Redemption
Price per Unit no value will be assigned to the portfolio insurance maintained
on the Bonds in an Insured Trust unless such Bonds are in default in payment
of principal or interest or in significant risk of such default. For a
description of the situations in which the Evaluator may value the insurance
obtained by the Insured Trusts, see "Public Offering--Offering Price" 
above.

The price at which Units may be redeemed could be less than the price paid by
the Unitholder and may be less than the par value of the Securities
represented by the Units so redeemed. As stated above, the Trustee may sell
Securities to cover redemptions. When Securities are sold, the size and
diversity of the affected Trust will be reduced. Such sales may be required at
a time when Securities would not otherwise be sold and might result in lower
prices than might otherwise be realized.

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

Reports Provided. The Trustee shall furnish Unitholders of a Trust in
connection with each distribution a statement of the amount of interest and
the amount of other receipts (received since the preceding distribution), if
any, being distributed expressed in each case as a dollar amount representing
the pro rata share of each Unit of a Trust outstanding. For as long as the
Sponsor deems it to be in the best interests of the Unitholders, the accounts
of each Trust shall be audited, not less frequently than annually, by
independent certified public accountants and the report of such accountants
shall be furnished by the Sponsor or Trustee to Unitholders of such Trusts
upon 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 registered Unitholder of a Trust a statement (i) as to
the Interest Account: interest received (including amounts representing
interest received upon any disposition of Securities) and the percentage of
such interest by states in which the issuers of the Securities are located,
deductions for applicable taxes and for fees and expenses of such Trust, for
purchases of Replacement Bonds and for redemptions of Units, if any, and the
balance remaining after such distributions and deductions, expressed in each
case both as a total dollar amount and as a dollar amount representing the pro
rata share of each Unit outstanding on the last business day of such calendar
year; (ii) as to the Principal Account: the dates of disposition of any
Securities and the net proceeds received therefrom (excluding any portion
representing accrued interest), the amount paid for purchases of Replacement
Bonds and for redemptions of Units, if any, deductions for payment of
applicable taxes and fees and expenses of the Trustee, the amount of "when
issued" interest treated as a return of capital, if any, and the balance
remaining after such distributions and deductions expressed both as a total
dollar amount and as a dollar amount representing the pro rata share of each
Unit outstanding on the last business day of such calendar year; (iii) a list
of the Securities held and the number of Units outstanding on the last
business day of such calendar year; (iv) the Redemption Price per Unit based
upon the last computation thereof made during such calendar year; and (v)
amounts actually distributed during such calendar year from the Interest and
Principal Accounts, separately stated, expressed both as total dollar amounts
and as dollar amounts representing the pro rata share of each Unit
outstanding. In order to comply with Federal and state tax reporting
requirements, Unitholders will be furnished, upon request to the Trustee,
evaluations of the Securities in a Trust furnished to it by the Evaluator.
Each distribution statement of a Trust will reflect pertinent information in
respect of the other plan of distribution so that Unitholders may be informed
regarding the results of such other plan of distribution.

INSURANCE ON THE BONDS IN THE INSURED TRUSTS

- --------------------------------------------------------------------------
Insurance has been obtained by each Insured Trust, by the issuer of Bonds in
an Insured Trust, by a prior owner of such Bonds, or by the Sponsor prior to
the deposit of such Bonds in a Trust guaranteeing prompt payment of interest
and principal, when due, in respect of the Bonds in such Trust. See "
Unitholder Explanations--Settlement of Bonds in the Trusts--Objectives and
Securities Selection" . The "Portfolio Insurers" and the "
Preinsured Bond Insurers" are described under "Notes to Portfolios" 
 in Part I of this Prospectus. The Portfolio Insurers are either AMBAC
Indemnity Corporation or Financial Guaranty Insurance Company. An insurance
policy obtained by an Insured Trust, if any, is non-cancellable and will
continue in force so long as such Trust is in existence, the respective
Portfolio Insurer is still in business and the Bonds described in such policy
continue to be held by such Trust (see "Portfolio" for the respective
Insured Trust in Part I of this Prospectus). Any portfolio insurance premium
for an Insured Trust, which is an obligation of such Trust, is paid by such
Trust on a monthly basis. Non-payment of premiums on a policy obtained by an
Insured Trust will not result in the cancellation of insurance but will force
the insurer to take action against the Trustee to recover premium payments due
it. The Trustee in turn will be entitled to recover such payments from such
Trust. Premium rates for each issue of Bonds protected by a policy obtained by
an Insured Trust, if any, are fixed for the life of the Trust. The premium for
any Preinsured Bond insurance has been paid by such issuer, by a prior owner
of such Bonds or the Sponsor and any such policy or policies are
non-cancellable and will continue in force so long as the Bonds so insured are
outstanding and the respective Preinsured Bond Insurer remains in business. 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, the Portfolio Insurers have no
obligation to insure any issue adversely affected by either of the above
described events.

The aforementioned portfolio insurance obtained by an Insured Trust, if any,
guarantees the timely payment of principal and interest on the Bonds when they
fall due. For the purposes of insurance obtained by an Insured Trust, "
when due" generally means the stated payment or maturity date for the
payment of principal and interest. However, in the event (a) an issuer of a
Bond defaults in the payment of principal or interest on such Bond, (b) such
issuer enters into a bankruptcy proceeding or (c) the maturity of such Bond is
accelerated, the affected Portfolio Insurer has the option, in its sole
discretion, after receiving notice of the earliest to occur of such a default,
bankruptcy proceeding or acceleration to pay the outstanding principal amount
of such Bond plus accrued interest to the date of such payment and thereby
retire the Bond from the affected Trust prior to such Bond's stated maturity
date. The insurance does not guarantee the market value of the Bonds or the
value of the Units. Insurance obtained by an Insured Trust, if any, is only
effective as to Bonds owned by and held in such Trust. In the event of a sale
of any such Bond by the Trustee, such insurance terminates as to such Bond on
the date of sale.

Pursuant to an irrevocable commitment of the Portfolio Insurers, the Trustee,
upon the sale of a Bond covered under a portfolio insurance policy obtained by
an Insured Trust, has the right to obtain permanent insurance with respect to
such Bond (i.e., insurance to maturity of the Bonds regardless of the identity
of the holder thereof) (the "Permanent Insurance" ) upon the payment of
a single predetermined insurance premium and any expenses related thereto from
the proceeds of the sale of such Bond. Accordingly, any Bond in an Insured
Trust is eligible to be sold on an insured basis. It is expected that the
Trustee would exercise the right to obtain Permanent Insurance only if upon
such exercise the affected Trust would receive net proceeds (sale of Bond
proceeds less the insurance premium and related expenses attributable to the
Permanent Insurance) from such sale in excess of the sale proceeds if such
Bonds were sold on an uninsured basis. The insurance premium with respect to
each Bond eligible for Permanent Insurance would be determined based upon the
insurability of each Bond as of the Date of Deposit and would not be increased
or decreased for any change in the creditworthiness of each Bond.

The Sponsor believes that the Permanent Insurance option provides an advantage
to an Insured Trust in that each Bond insured by a Trust insurance policy may
be sold out of the affected Trust with the benefits of the insurance attaching
thereto. Thus, the value of the insurance, if any, at the time of sale, can be
realized in the market value of the Bond so sold (which is not the case in
connection with any value attributable to an Insured Trust's portfolio
insurance). See "Unitholder Explanations--Public Offering--Offering
Price" . Because any such insurance value may be realized in the market
value of the Bond upon the sale thereof upon exercise of the Permanent
Insurance option, the Sponsor anticipates that (a) in the event an Insured
Trust were to be comprised of a substantial percentage of Bonds in default or
significant risk of default, it is much less likely that such Trust would need
at some point in time to seek a suspension of redemptions of Units than if
such Trust were to have no such option (see "Unitholder
Explanations--Public Offering--Redemption of Units" ) and (b) at the time
of termination of an Insured Trust, if such Trust were holding defaulted Bonds
or Bonds in significant risk of default such Trust would not need to hold such
Bonds until their respective maturities in order to realize the benefits of
such Trust's portfolio insurance (see "Trust
Administration--General--Amendment or Termination" ).

Except as indicated below, insurance obtained by an Insured Trust has no
effect on the price or redemption value of Units. It is the present intention
of the Evaluator to attribute a value for such insurance (including the right
to obtain Permanent Insurance) for the purpose of computing the price or
redemption value of Units if the Bonds covered by such insurance are in
default in payment of principal or interest or in significant risk of such
default. The value of the insurance will be the difference between (i) the
market value of a Bond which is in default in payment of principal or interest
or in significant risk of such default assuming the exercise of the right to
obtain Permanent Insurance (less the insurance premium and related expenses
attributable to the purchase of Permanent Insurance) and (ii) the market value
of such Bonds not covered by Permanent Insurance. See "Unitholder
Explanations--Public Offering--Offering Price" . It is also the present
intention of the Trustee not to sell such Bonds to effect redemptions or for
any other reason but rather to retain them in the portfolio because value
attributable to the insurance cannot be realized upon sale. See "
Unitholder Explanations--Public Offering--Offering Price" for a more
complete description of an Insured Trust's method of valuing defaulted Bonds
and Bonds which have a significant risk of default. Insurance obtained by the
issuer of a Bond is effective so long as such Bond is outstanding. 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.

The portfolio insurance policy or policies obtained by an Insured Trust, if
any, with respect to the Bonds in such Trust were issued by one or more of the
Portfolio Insurers. Any other Preinsured Bond insurance policy (or commitment
therefor) was issued by one of the Preinsured Bond Insurers. See "
Unitholder Explanations--Settlement of Bonds in the Trusts--Objectives and
Securities Selection" .

The following summary information relating to the listed insurance companies
has been obtained from publicly available information:

<TABLE>
<CAPTION>
                                                              Financial Information (in
                                                                millions of dollars)
                                                       -----------------------------------------
                                                       Date           Admitted   Policyholders' 
Name                                                   Established    Assets     Surplus        
- ------------------------------------------------------ -------------- ---------- ---------------
<S>                                                    <C>            <C>        <C>
AMBAC Indemnity Corporation (at 3/31/96)..............          1970  $    2,440 $          878 
Capital Guaranty Insurance Corporation (at 9/30/96)...          1987         313            194 
Financial Guaranty Insurance Company (at 9/30/96).....          1984       2,436          1,097 
Financial Security Assurance, Inc. (at 9/30/96).......          1984       1,184            452 
MBIA Insurance Corporation (at 9/30/96)...............          1986       4,300          1,300 
</TABLE>

In order to be in an Insured Trust, Bonds must be insured by one of the
Preinsured Bond Insurers or be eligible for the insurance being obtained by
such Trust. In determining eligibility for insurance, the Preinsured Bond
Insurers and the Portfolio Insurers have applied their own standards which
correspond generally to the standards they normally use in establishing the
insurability of new issues of municipal bonds and which are not necessarily
the criteria used in the selection of Bonds by the Sponsor. To the extent the
standards of the Preinsured Bond Insurers and the Portfolio Insurers are more
restrictive than those of the Sponsor, the previously stated Trust investment
criteria have been limited with respect to the Bonds. This decision is made
prior to the Date of Deposit, as debt obligations not eligible for insurance
are not deposited in an Insured Trust. Thus, all of the Bonds in the
portfolios of the Insured Trusts in the Fund are insured either by the
respective Trust or by the issuer of the Bonds, by a prior owner of such Bonds
or by the Sponsor prior to the deposit of such Bonds in a Trust.

Because the Bonds are insured by one of the Portfolio Insurers or one of the
Preinsured Bond Insurers as to the timely payment of principal and interest,
when due, and on the basis of the various reinsurance agreements in effect,
Standard & Poor's has assigned to the Units of each Insured Trust its "
AAA" investment rating. Such rating will be in effect for a period of
thirteen months from the Date of Deposit and will, unless renewed, terminate
at the end of such period. See "Description of Ratings" . The obtaining
of this rating by an Insured Trust should not be construed as an approval of
the offering of the Units by Standard & Poor's or as a guarantee of the market
value of such Trust or of the Units.

An objective of portfolio insurance obtained by an Insured Trust is to obtain
a higher yield on the portfolio of such Trust than would be available if all
the Securities in such portfolio had Standard & Poor's "AAA" rating
and yet at the same time to have the protection of insurance of prompt payment
of interest and principal, when due, on the Bonds. There is, of course, no
certainty that this result will be achieved. Preinsured Bonds in an Insured
Trust (all of which are rated "AAA" by Standard & Poor's) may or may
not have a higher yield than uninsured bonds rated "AAA" by Standard &
Poor's. In selecting such Bonds for an Insured Trust, the Sponsor has applied
the criteria hereinbefore described.

In the event of nonpayment of interest or principal, when due, in respect of a
Bond, AMBAC Indemnity shall make such payment not later than 30 days and
Financial Guaranty shall make such payment within one business day after the
respective insurer has been notified that such nonpayment has occurred or is
threatened (but not earlier than the date such payment is due). The insurer,
as regards any payment it may make, will succeed to the rights of the Trustee
in respect thereof. All policies issued by the Portfolio Insurers and the
Preinsured Bond Insurers are substantially identical insofar as obligations to
an Insured Trust are concerned.

The Internal Revenue Service has issued a letter ruling which holds in effect
that insurance proceeds representing maturing interest on defaulted municipal
obligations paid to holders of insured bonds, under policy provisions
substantially identical to the policies described herein, will be excludable
from Federal gross income under Section 103(a)(1) of the Internal Revenue Code
to the same extent as if such payments were made by the issuer of the
municipal obligations. Holders of Units in an Insured Trust should discuss
with their tax advisers the degree of reliance which they may place on this
letter ruling. However, Chapman and Cutler, counsel for the Sponsor, has given
an opinion to the effect such payment of proceeds would be excludable from
Federal gross income to the extent described under "Federal Tax Status" 
 .

Each Portfolio Insurer is subject to regulation by the department of insurance
in the state in which it is qualified to do business. Such regulation,
however, is no guarantee that each Portfolio Insurer will be able to perform
on its contract of insurance in the event a claim should be made thereunder at
some time in the future. At the date hereof, it is reported that no claims
have been submitted or are expected to be submitted to any of the Portfolio
Insurers which would materially impair the ability of any such company to meet
its commitment pursuant to any contract of bond or portfolio insurance.

The information relating to each Portfolio Insurer has been furnished by such
companies. The financial information with respect to each Portfolio Insurer
appears in reports 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 dates
thereof.

For information relating to the insurance on the Bonds in the Insured Trusts
and the breakdown of the insurers of Preinsured Bonds, see footnote (5) in
"Notes to Portfolios" in Part I of this Prospectus.

UNDERWRITING

- --------------------------------------------------------------------------
For a breakdown of the Underwriters who have severally purchased Units of each
Trust from the Sponsor, see "Other Matters--Underwriting" in Part I of
this Prospectus.

Units may also be sold to broker-dealers and others at prices representing the
per Unit concession or agency commission stated under "Trust
Administration--General--Unit Distribution" . However, resales of Units by
such broker-dealers and others to the public will be made at the Public
Offering Price described in the Prospectus. The Sponsor reserves the right to
reject, in whole or in part, any order for the purchase of Units and the right
to change the amount of the concession or agency commission from time to time.

In addition to any other benefits the Underwriters may realize from the sale
of the Units of the Fund, the Agreement Among Underwriters provides that the
Sponsor will share on a pro rata basis among certain Underwriters (those who
underwrite at least 250 Units) 50% of the aggregate gain, if any, represented
by the difference between the Sponsor's cost of the Securities in connection
with their acquisition and the evaluation thereof on the Date of Deposit less
deductions for certain accrued interest and certain other costs. See "
Trust Administration--General--Sponsor and Underwriter Compensation" 
herein and "Portfolio" for the applicable Trust in Part I of this
Prospectus.

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.

FUND ADMINISTRATION AND EXPENSES

- --------------------------------------------------------------------------
Sponsor. Van Kampen American Capital Distributors, Inc., a Delaware
corporation, is the Sponsor of the Trusts. The Sponsor is an indirect
subsidiary of VK/AC Holding, Inc. Prior to October 31, 1996, VK/AC Holding,
Inc. was controlled, through the ownership of a substantial majority of its
common stock, by The Clayton & Dubilier Private Equity IV Limited Partnership.
On October 31, 1996, VK/AC Holding, Inc. became a wholly owned indirect
subsidiary of Morgan Stanley Group Inc. pursuant to the closing of an
Agreement and Plan of Merger among Morgan Stanley Group Inc., MSAM Holding II,
Inc. and MSAM Acquisition Inc., whereby MSAM Acquisition Inc. was merged with
and into VK/AC Holding, Inc. and VK/AC Holding, Inc. was the surviving
corporation (the "Acquisition" ).

As a result of the Acquisition, VK/AC Holding, Inc. became a wholly owned
subsidiary of MSAM Holdings II, Inc. which, in turn, is a wholly owned
subsidiary of Morgan Stanley Group Inc. Morgan Stanley Group Inc. and various
of its directly or indirectly owned subsidiaries, including Morgan Stanley
Asset Management Inc., an investment adviser ("MSAM" ), Morgan Stanley
& Co. Incorporated, a registered broker-dealer and investment adviser, and
Morgan Stanley International, are engaged in a wide range of financial
services. Their principal businesses include securities underwriting,
distribution and trading; merger, acquisition, restructuring and other
corporate finance advisory activities; merchant banking; stock brokerage and
research services; asset management; trading of futures, options, foreign
exchange commodities and swaps (involving foreign exchange, commodities,
indices and interest rates); real estate advice, financing and investing; and
global custody, securities clearance services and securities lending. As of
September 30, 1996, MSAM, together with its affiliated investment advisory
companies, had approximately $103.5 billion of assets under management and
fiduciary advice. 

On February 5, 1997, Morgan Stanley Group Inc. and Dean Witter, Discover & Co.
announced that they had entered into an Agreement and Plan of Merger to form
Morgan Stanley, Dean Witter, Discover & Co. Subject to certain conditions
being met, it is currently anticipated that the transaction will close in
mid-1997. Thereafter, Van Kampen American Capital Distributors, Inc. will be
an indirect subsidiary of Morgan Stanley, Dean Witter, Discover & Co.

Dean Witter, Discover & Co. is a financial services company with three major
businesses:  full service brokerage, credit services and asset management.

Van Kampen American Capital Distributors, Inc. specializes in the underwriting
and distribution of unit investment trusts and mutual funds with roots in
money management dating back to 1926. The Sponsor is a member of the National
Association of Securities Dealers, Inc. and has offices at One Parkview Plaza,
Oakbrook Terrace, Illinois 60181, (630) 684-6000 and 2800 Post Oak Boulevard,
Houston, Texas, 77056, (713) 993-0500. It maintains a branch office in
Philadelphia and has regional representatives in Atlanta, Dallas, Los Angeles,
New York, San Francisco, Seattle and Tampa. As of November 30, 1996, the total
stockholders' equity of Van Kampen American Capital Distributors, Inc. was
$129,451,000 (unaudited). (This paragraph relates only to the Sponsor and not
to the Fund or to any Series thereof or to any other Underwriter. The
information is included herein only for the purpose of informing investors as
to the financial responsibility of the Sponsor and its ability to carry out
its contractual obligations. More detailed financial information will be made
available by the Sponsor upon request.)

As of December 31, 1996, the Sponsor and its Van Kampen American Capital
affiliates managed or supervised approximately $59 billion of investment
products, of which over $21.78 billion is invested in municipal securities.
The Sponsor and its Van Kampen American Capital affiliates managed $48 billion
of assets, consisting of $29.9 billion for 59 open end mutual funds (of which
46 are distributed by Van Kampen American Capital Distributors, Inc.), $13.12
billion for 38 closed-end funds and $4.99 billion for 114 institutional
accounts. The Sponsor has also deposited approximately $26 billion of unit
investment trusts. All of Van Kampen American Capital's open-end funds,
closed-end funds and unit investment trusts are professionally distributed by
leading financial firms nationwide. Based on cumulative assets deposited, the
Sponsor believes that it is the largest sponsor of insured municipal unit
investment trusts, primarily through the success of its Insured Municipals
Income Trust(R)or the IM-IT(R)trust. The Sponsor also provides
surveillance and evaluation services at cost for approximately $13 billion of
unit investment trust assets outstanding. Since 1976, the Sponsor has serviced
over two million investor accounts, opened through retail distribution firms.

If the Sponsor shall fail to perform any of its duties under the Trust
Agreement or become incapable of acting or become bankrupt or its affairs are
taken over by public authorities, then the Trustee may (i) appoint a successor
Sponsor at rates of compensation deemed by the Trustee to be reasonable and
not exceeding amounts prescribed by the Securities and Exchange Commission,
(ii) terminate the Trust Agreement and liquidate the Fund as provided therein
or (iii) continue to act as Trustee without terminating the Trust Agreement.

All costs and expenses incurred in creating and establishing the Fund,
including the cost of the initial preparation, printing and execution of the
Trust Agreement and the certificates, legal and accounting expenses,
advertising and selling expenses, expenses of the Trustee, initial evaluation
fees and other out-of-pocket expenses have been borne by the Sponsor at no
cost to the Fund.

Compensation of Sponsor and Evaluator. The Sponsor will not receive any fees
in connection with its activities relating to the Fund. However, American
Portfolio Evaluation Services, a division of Van Kampen American Capital
Investment Advisory Corp., which is an affiliate of the Sponsor, will receive
an annual supervisory fee as indicated under "Summary of Essential
Financial Information" in Part I of this Prospectus for providing
portfolio supervisory services for the Fund. Such fee may exceed the actual
costs of providing such supervisory services for this Fund, but at no time
will the total amount received for portfolio supervisory services rendered to
Series 1 of the Fund and subsequent series and to any other unit investment
trusts sponsored by the Sponsor for which the Evaluator provides portfolio
supervisory services in any calendar year exceed the aggregate cost to the
Evaluator of supplying such services in such year. In addition, the Evaluator
shall receive an annual evaluation fee as indicated under "Summary of
Essential Financial Information" in Part I of this Prospectus for
regularly evaluating each Trust's portfolio. Such fees are based on the
outstanding principal amount of Securities in each Trust on the Date of
Deposit for the first year and as of the close of business on January 1 for
each year thereafter. Both of the foregoing fees may be increased without
approval of the Unitholders by amounts not exceeding proportionate increases
under the category "All Services Less Rent of Shelter" in the Consumer
Price Index published by the United States Department of Labor or, if such
category is no longer published, in a comparable category. The Sponsor and the
Underwriters will receive sales commissions and may realize other profits (or
losses) in connection with the sale of Units and the deposit of the Securities
as described under "General--Sponsor and Underwriter Compensation" 
below.

Trustee. The Trustee is The Bank of New York, a trust company organized under
the laws of New York. The Bank of New York has its unit investment trust
division offices at 101 Barclay Street, New York, New York 10286, telephone
(800) 221-7668. The Bank of New York is subject to supervision and examination
by the Superintendent of Banks of the State of New York and the Board of
Governors of the Federal Reserve System, and its deposits are insured by the
Federal Deposit Insurance Corporation to the extent permitted by law.

The duties of the Trustee are primarily ministerial in nature. It did not
participate in the selection of Bonds for the portfolios of any of the Trusts.
In accordance with the Trust Agreement, the Trustee shall keep proper books of
record and account of all transactions at its office for the Fund. Such
records shall include the name and address of, and the certificates issued by
the Fund to, every Unitholder of the Fund. Such books and records shall be
open to inspection by any Unitholder at all reasonable times during the 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 (see "Unitholder Explanations--Public Offering--Reports
Provided" ). The Trustee is required to keep a certified copy or duplicate
original of the Trust Agreement on file in its office available for inspection
at all reasonable times during the usual business hours by any Unitholder,
together with a current list of the Securities held in the Fund.

Under the Trust Agreement, the Trustee or any successor trustee may resign and
be discharged of the trusts created by the Trust Agreement 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 Fund
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. The Sponsor may remove the Trustee and appoint a
successor trustee as provided in the Trust Agreement at any time with or
without cause. 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
resignation or removal of a Trustee becomes effective only when the successor
trustee accepts its appointment as such or when a court of competent
jurisdiction appoints a successor trustee. Any corporation into which a
Trustee may be merged or with which it may be consolidated, or any corporation
resulting from any merger or consolidation to which a Trustee shall be a
party, shall be the successor trustee. The Trustee must be a banking
corporation organized under the laws of the United States or any state and
having at all times an aggregate capital, surplus and undivided profits of not
less than $5,000,000.

Trustee's Fee. For its services the Trustee will receive a fee based on the
aggregate outstanding principal amount of Securities in each Trust as of the
opening of business on January 2 and July 2 of each year as set forth under
"Per Unit Information" for the applicable Trust in Part I of this
Prospectus. During the first year the Trustee may agree to reduce its fee (and
to the extent necessary pay miscellaneous expenses of a Trust) as stated under
"Per Unit Information" for the applicable Trust in Part I of this
Prospectus. After the first year such fee will be computed at $.51 per $1,000
principal amount of Securities for that portion of each Trust under the
semi-annual distribution plan and $.91 per $1,000 principal amount of
Securities for that portion of each Trust under the monthly distribution plan.
Based on the size of the Trust on the Date of Deposit, the Trustee's estimated
annual fees for ordinary recurring services would initially amount to that
amount set forth under "Per Unit Information" for the applicable Trust
in Part I of the Prospectus. The Trustee's fees are payable monthly on or
before the twenty-fifth day of each month from the Interest Account of each
Trust to the extent funds are available and then from the Principal Account of
each Trust, with such payments being based on each Trust's portion of such
expenses. Since the Trustee has the use of the funds being held in the
Principal and Interest Accounts for future distributions, payment of expenses
and redemptions and since such Accounts are non-interest bearing to
Unitholders, the Trustee benefits thereby. Part of the Trustee's compensation
for its services to each Trust is expected to result from the use of these
funds. Such fees may be increased without approval of the Unitholders by
amounts not exceeding proportionate increases under the category "All
Services Less Rent of Shelter" in the Consumer Price Index published by
the United States Department of Labor or, if such category is no longer
published, in a comparable category. The Trustee's fees will not be increased
in future years in order to make up any reduction in the Trustee's fees
described under "Per Unit Information" for the applicable Trust in
Part I of this Prospectus. For a discussion of the services rendered by the
Trustee pursuant to its obligations under the Trust Agreement, see "
Unitholder Explanations--Public Offering--Reports Provided" and "
Trustee" above.

 Portfolio Administration. The Trustee is empowered to sell, for the purpose
of redeeming Units tendered by any Unitholder, and for the payment of expenses
for which funds may not be available, such of the Bonds designated by the
Evaluator as the Trustee in its sole discretion may deem necessary. The
Evaluator, in designating such Securities, will consider a variety of factors,
including (a) interest rates, (b) market value and (c) marketability. The
Sponsor, in connection with the Quality Trusts, may direct the Trustee to
dispose of Securities upon default in payment of principal or interest,
institution of certain legal proceedings, default under other documents
adversely affecting debt service, default in payment of principal or interest
on other obligations of the same issuer, decline in projected income pledged
for debt service on revenue bonds or decline in price or the occurrence of
other market or credit factors, including advance refunding (i.e., the
issuance of refunding securities and the deposit of the proceeds thereof in
trust or escrow to retire the refunded securities on their respective
redemption dates), so that in the opinion of the Sponsor the retention of such
Securities would be detrimental to the interest of the Unitholders. In
connection with the Insured Trusts to the extent that Bonds are sold which are
current in payment of principal and interest in order to meet redemption
requests and defaulted Bonds are retained in the portfolio in order to
preserve the related insurance protection applicable to said Bonds, the
overall quality of the Bonds remaining in such Trust's portfolio will tend to
diminish. Except as described in this section and in certain other unusual
circumstances for which it is determined by the Trustee to be in the best
interests of the Unitholders or if there is no alternative, the Trustee is not
empowered to sell Bonds from an Insured Trust which are in default in payment
of principal or interest or in significant risk of such default and for which
value has been attributed for the insurance obtained by such Insured Trust.
Because of such restrictions on the Trustee under certain circumstances, the
Sponsor may seek a full or partial suspension of the right of Unitholders to
redeem their Units in an Insured Trust. See "Unitholder
Explanations--Public Offering--Redemption of Units" . The Sponsor is
empowered, but not obligated, to direct the Trustee to dispose of Bonds in the
event of an advanced refunding. 

The Sponsor is required to instruct the Trustee to reject any offer made by an
issuer of any of the Securities to issue new obligations in exchange or
substitution for any Security pursuant to a refunding or refinancing 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 Security or (2) in
the written opinion of the Sponsor the issuer will probably default with
respect to such Security in the reasonably foreseeable 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
Securities originally deposited thereunder. Within five days after the deposit
of obligations in exchange or substitution for underlying Securities, the
Trustee is required to give notice thereof to each Unitholder of the Trust
thereby affected, identifying the Securities eliminated and the Securities
substituted therefor. Except as stated herein and under "Unitholder
Explanations--Settlement of Bonds in the Trusts--Replacement Bonds" 
regarding the substitution of Replacement Bonds for Failed Bonds, the
acquisition by the Fund of any securities other than the Securities initially
deposited is not permitted.

If any default in the payment of principal or interest on any Security occurs
and no provision for payment is made therefor within 30 days, the Trustee is
required to notify the Sponsor thereof. If the Sponsor fails to instruct the
Trustee to sell or to hold such Security within 30 days after notification by
the Trustee to the Sponsor of such default, the Trustee may in its discretion
sell the defaulted Security and not be liable for any depreciation or loss
thereby incurred.

Sponsor Purchases of Units. The Trustee shall notify the Sponsor of any tender
of Units for redemption. If the Sponsor's bid in the secondary market at that
time equals or exceeds the Redemption Price per Unit, it may purchase such
Units by notifying the Trustee before the close of business on the second
succeeding business day and by making payment therefor to the Unitholder not
later than the day on which the Units would otherwise have been redeemed by
the Trustee. Units held by the Sponsor may be tendered to the Trustee for
redemption as any other Units. The offering price of any Units acquired by the
Sponsor will be in accord with the Public Offering Price described in the then
currently effective prospectus describing such Units. Any profit resulting
from the resale of such Units will belong to the Sponsor which likewise will
bear any loss resulting from a lower offering or Redemption Price subsequent
to its acquisition of such Units.

Insurance Premiums. The cost of the portfolio insurance obtained by the
respective Trusts, if any, is that amount shown in footnote (5) in "Notes
to Portfolios" in Part I of this Prospectus, so long as such Trust retains
the Bonds. Premiums, which are obligations of each Insured Trust, are payable
monthly by the Trustee on behalf of the respective Trust. As Bonds in the
portfolio of an Insured Trust are redeemed by their respective issuers or are
sold by the Trustee, the amount of the premium will be reduced in respect of
those Bonds no longer owned by and held in such Trust. If the Trustee
exercises the right to obtain permanent insurance, the premiums payable for
such permanent insurance will be paid solely from the proceeds of the sale of
the related Bonds. The premiums for such permanent insurance with respect to
each Bond will decline over the life of the Bond. A Trust does not incur any
expense for Preinsured Bond insurance, since the premium or premiums for such
insurance have been paid by the issuer or the Sponsor prior to the deposit of
such Preinsured Bonds in a Trust. Preinsured Bonds are not additionally
insured by an Insured Trust.

Miscellaneous Expenses. The following additional charges are or may be
incurred by the Trusts: (a) fees of the Trustee for extraordinary services,
(b) expenses of the Trustee (including legal and auditing expenses) and of
counsel designated by the Sponsor, (c) various governmental charges, (d)
expenses and costs of any action taken by the Trustee to protect the Trusts
and the rights and interests of Unitholders, (e) indemnification of the
Trustee for any loss, liability or expenses incurred by it in the
administration of the Fund without negligence, bad faith or willful misconduct
on its part, (f) any special custodial fees payable in connection with the
sale of any of the Bonds in a Trust, (g) expenditures incurred in contacting
Unitholders upon termination of the Trusts and (h) costs incurred to reimburse
the Trustee for advancing funds to the Trusts to meet scheduled distributions
(which costs may be adjusted periodically in response to fluctuations in
short-term interest rates). The fees and expenses set forth herein are payable
out of the Trusts. When such fees and expenses are paid by or owing to the
Trustee, they are secured by a lien on the portfolio of the applicable Trust.
If the balances in the Interest and Principal Accounts are insufficient to
provide for amounts payable by a Trust, the Trustee has the power to sell
Securities to pay such amounts.

GENERAL

- --------------------------------------------------------------------------
Amendment or Termination. The Sponsor and the Trustee have the power to amend
the Trust Agreement without the consent of any of the Unitholders when such an
amendment is (a) to cure an ambiguity or to correct or supplement any
provision of the Trust Agreement which may be defective or inconsistent with
any other provision contained therein or (b) to make such other provisions as
shall not adversely affect the interest of the Unitholders (as determined in
good faith by the Sponsor and the Trustee), provided that the Trust Agreement
may not be amended to increase the number of Units issuable thereunder or to
permit the deposit or acquisition of securities either in addition to or in
substitution for any of the Securities initially deposited in the Fund, except
for the substitution of certain refunding securities for such Securities. In
the event of any amendment, the Trustee is obligated to notify promptly all
Unitholders of the substance of such amendment.

A Trust may be terminated at any time by consent of Unitholders of 51% of the
Units of such Trust then outstanding or by the Trustee when the value of such
Trust, as shown by any semi-annual evaluation, is less than that indicated
under "Summary of Essential Financial Information" in Part I of this
Prospectus. A Trust will be liquidated by the Trustee in the event that a
sufficient number of Units not yet sold are tendered for redemption by the
Underwriters, including the Sponsor, so that the net worth of such Trust would
be reduced to less than 40% of the initial principal amount of such Trust. If
a Trust is liquidated because of the redemption of unsold Units by the
Underwriters, the Sponsor will refund to each purchaser of Units the entire
sales charge paid by such purchaser. The Trust Agreement provides that each
Trust shall terminate upon the redemption, sale or other disposition of the
last Security held in such Trust, but in no event shall it continue beyond the
end of the year preceding the fiftieth anniversary of the Trust Agreement in
the case of an IM-IT, an IM-IT Discount, a State (other than a State
Intermediate Laddered Maturity Trust) or a National Quality Trust, or beyond
the end of the year preceding the twentieth anniversary of the Trust Agreement
in the case of IM-IT Limited Maturity, IM-IT Intermediate, State Intermediate
Laddered Maturity and IM-IT Short Intermediate Trusts. In the event of
termination of any Trust, written notice thereof will be sent by the Trustee
to each Unitholder of such Trust at his address appearing on the registration
books of the Fund maintained by the Trustee. Within a reasonable time
thereafter the Trustee shall liquidate any Securities then held in such Trust
and shall deduct from the funds of such Trust any accrued costs, expenses or
indemnities provided by the Trust Agreement, including estimated compensation
of the Trustee and costs of liquidation and any amounts required as a reserve
to provide for payment of any applicable taxes or other governmental charges.
The sale of Securities in the Trust upon termination may result in a lower
amount than might otherwise be realized if such sale were not required at such
time. For this reason, among others, the amount realized by a Unitholder upon
termination may be less than the principal amount or par amount of Securities
represented by the Units held by such Unitholder. The Trustee shall then
distribute to each Unitholder his share of the balance of the Interest and
Principal Accounts. With such distribution the Unitholder shall be furnished a
final distribution statement of the amount distributable. At such time as the
Trustee in its sole discretion shall determine that any amounts held in
reserve are no longer necessary, it shall make distribution thereof to
Unitholders in the same manner.

Notwithstanding the foregoing, in connection with final distributions to
Unitholders of an Insured Trust, it should be noted that because the portfolio
insurance obtained by an Insured Trust is applicable only while Bonds so
insured are held by such Trust, the price to be received by such Trust upon
the disposition of any such Bond which is in default, by reason of nonpayment
of principal or interest, will not reflect any value based on such insurance.
Therefore, in connection with any liquidation, it shall not be necessary for
the Trustee to, and the Trustee does not currently intend to, dispose of any
Bond or Bonds if retention of such Bond or Bonds, until due, shall be deemed
to be in the best interest of Unitholders, including, but not limited to,
situations in which a Bond or Bonds so insured are in default and situations
in which a Bond or Bonds so insured have deteriorated market prices resulting
from a significant risk of default. Since the Preinsured Bonds will reflect
the value of the related insurance, it is the present intention of the Sponsor
not to direct the Trustee to hold any of such Preinsured Bonds after the date
of termination. All proceeds received, less applicable expenses, from
insurance on defaulted Bonds not disposed of at the date of termination will
ultimately be distributed to Unitholders of record as of such date of
termination as soon as practicable after the date such defaulted Bond or Bonds
become due and applicable insurance proceeds have been received by the Trustee.

Limitation on Liabilities. The Sponsor, the Evaluator and the Trustee shall be
under no liability to Unitholders for taking any action or for refraining from
taking any action in good faith pursuant to the Trust Agreement, or for errors
in judgment, but shall be liable only for their own willful misfeasance, bad
faith or gross negligence (negligence in the case of the Trustee) in the
performance of their duties or by reason of their reckless disregard of their
obligations and duties hereunder. The Trustee shall not be liable for
depreciation or loss incurred by reason of the sale by the Trustee of any of
the Securities. In the event of the failure of the Sponsor to act under the
Trust Agreement, the Trustee may act thereunder and shall not be liable for
any action taken by it in good faith under the Trust Agreement.

The Trustee shall not be liable for any taxes or other governmental charges
imposed upon or in respect of the Securities or upon the interest thereon or
upon it as Trustee under the Trust Agreement or upon or in respect of the Fund
which the Trustee may be required to pay under any present or future law of
the United States of America or of any other taxing authority having
jurisdiction. In addition, the Trust Agreement contains other customary
provisions limiting the liability of the Trustee.

The Trustee, Sponsor and Unitholders may rely on any evaluation furnished by
the Evaluator and shall have no responsibility for the accuracy thereof.
Determinations by the Evaluator under the Trust Agreement 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,
Sponsor or Unitholders for errors in judgment. This provision shall not
protect the Evaluator in any case of willful misfeasance, bad faith, gross
negligence or reckless disregard of its obligations and duties.

Unit Distribution. During the initial offering period, Units will be
distributed to the public by Underwriters, broker-dealers and others (see "
Unitholder Explanations--Underwriting" ) at the Public Offering Price, plus
interest accrued but unpaid from the First Settlement Date to the date of
settlement as described above under "Unitholder Explanations--Accrued
Interest" . Upon the completion of the initial offering, Units repurchased
in the secondary market, if any, may be offered by this Prospectus at the
secondary market Public Offering Price plus interest accrued to the date of
settlement.

The Sponsor intends to qualify the Units for sale in a number of states.
Broker-dealers or others will be allowed a concession or agency commission in
connection with the distribution of Units during the initial offering period
for any single transaction as described in the following table, provided that
the Units are acquired either from the Sponsor (in the case of dealer
transactions) or through the Sponsor (in the case of transactions involving
brokers or others).

<TABLE>
<CAPTION>
                                  IM-IT, State
                                  (other than a
                                  State
                                  Intermediate
                                  Laddered                                    IM-IT      State
                       IM-IT      Maturity Trust) IM-IT Short   IM-IT         Limited    Intermediate
                       Discount   and National    Intermediate  Intermediate  Maturity   Laddered
                       Trust      Quality Trust   Trust         Trust         Trust      Maturity Trust
<S>                    <C>        <C>             <C>           <C>           <C>        <C>         
1 - 99 Units...........$   18.00  $     30.00     $     10.00   $      25.00  $   27.00  $      20.00
100 - 249 Units........$   19.00  $     32.00     $     11.00   $      28.00  $   30.00  $      21.00
250 - 499 Units........$   20.00  $     34.00     $     11.00   $      27.00  $   30.00  $      21.00
500 - 999 Units........$   20.00  $     35.00     $     12.00   $      30.00  $   32.00  $      23.00
1,000 - 1,499 Units....$   20.00  $     34.00     $     12.00   $      29.00  $   29.00  $      22.00
1,500 or more Units....$   20.00  $     34.00     $     12.00   $      29.00  $   29.00  $      22.00
</TABLE>

The increased concession or agency commission is a result of the discount
given to purchasers for quantity purchases. See "Unitholder
Explanations--Public Offering--General" . In addition to the concessions
and agency commissions described herein, volume concessions or agency
commissions of an additional $5.00 per Unit of an IM-IT, a State (other than a
State Intermediate Laddered Maturity Trust) or a National Quality Trust and
$2.00 per Unit of all other Trusts will be given to any broker/dealer or agent
(other than Underwriters) who purchases from the Sponsor at least 250 Units of
such Trust during the initial offering period. Such additional concessions
will be allowed at the time of purchase, provided, however, the additional
concession applicable to initial purchases totaling less than 250 Units will
be paid retroactively at the end of the initial offering period. The
breakpoint concessions or agency commissions described herein are also applied
on a dollar basis utilizing a breakpoint equivalent of $1,000 per Unit and
will be applied on whichever basis is more favorable to the distributor. The
breakpoints will be adjusted to take into consideration purchase orders stated
in dollars which cannot be completely fulfilled due to the requirement that
only whole Units be issued. Certain commercial banks are making Units of the
Fund available to their customers on an agency basis. A portion of the sales
charge paid by these customers (equal to the agency commission referred to
above) is retained by or remitted to the banks. Under the Glass-Steagall Act,
banks are prohibited from underwriting Units of the Fund; however, the
Glass-Steagall Act does permit certain agency transactions and the banking
regulators have not indicated that these particular agency transactions are
not 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. Any quantity discount (see "Unitholder Explanations--Public
Offering--General" ) provided to investors will be borne by the selling
dealer or agent. For secondary market transactions, the concession or agency
commission will amount to 70% of the applicable sales charge as determined
using the table found in "Unitholder Explanations--Public
Offering--General" . The minimum purchase in the primary and secondary
market will be one Unit. The Sponsor reserves the right to reject, in whole or
in part, any order for the purchase of Units and to change the amount of the
concession or agency commission to dealers and others from time to time. See
"Unitholder Explanations--Underwriting." 

      Sponsor and Underwriter Compensation. The Underwriters will receive a
gross sales commission equal to that percentage of the Public Offering Price
of the Units as indicated under "Unitholder Explanations--Public
Offering--Offering Price" less any reduced sales charges for quantity
purchases as described under "Unitholder Explanations--Public
Offering--General" .

The Sponsor will receive from the Underwriters the excess of such gross sales
commission over the amounts set forth in the following tables, as of the Date
of Deposit.

<TABLE>
<CAPTION>
                                  IM-IT, State
                                  (other than a
                                  State
                                  Intermediate
                                  Laddered                                    IM-IT      State
                       IM-IT      Maturity Trust) IM-IT Short   IM-IT         Limited    Intermediate
                       Discount   and National    Intermediate  Intermediate  Maturity   Laddered
                       Trust      Quality Trust   Trust         Trust         Trust      Maturity Trust
<S>                    <C>        <C>             <C>           <C>           <C>        <C>         
1 - 99 Units...........$   20.00  $     35.00     $     12.00   $      27.00  $   29.00  $      22.00
100 - 249 Units........$   21.00  $     37.00     $     13.00   $      30.00  $   32.00  $      23.00
250 - 499 Units........$   22.00  $     39.00     $     13.50   $      29.50  $   32.00  $      23.00
500 - 999 Units........$   22.00  $     40.00     $     14.00   $      32.50  $   34.50  $      25.00
1,000 - 1,499 Units....$   22.00  $     39.00     $     14.00   $      31.00  $   31.00  $      24.00
1,500 or more Units....$   22.00  $     39.00     $     14.00   $      31.00  $   31.00  $      24.00
</TABLE>

A. G. Edwards & Sons, Inc. which acts as a Managing Underwriter of Units of
the various series of the IM-IT or National Quality Trust, will receive from
the Sponsor reimbursement for certain costs and further compensation in the
amount of $5.00 for each Unit of the IM-IT or National Quality Trust it
underwrites. In addition, the Sponsor will receive from the Managing
Underwriters of any National Quality, (who underwrite 15% of the Trust
involved or 1,000 Units of such Trust, whichever is greater) the excess of
such gross sales commission over $38.00 per Unit of any such Trust, as of the
Date of Deposit. Also, any such Managing Underwriter that sells a total of 25%
or 1,500 Units, whichever is greater, of any individual series of such Trusts
will receive an additional $2.00 per each such Unit. In connection with
quantity sales to purchasers of any Pennsylvania IM-IT Trust the Underwriters
will receive from the Sponsor commissions totalling $35.00 per Unit for any
single transaction of 100 to 249 Units, $36.00 per Unit for any single
transaction of 250 to 499 units, $37.00 per Unit for any single transaction of
500 to 999 Units and $38.00 per Unit for any single transaction of 1,000 or
more Units. In addition, any Underwriter that sells a total of 25% or 1,500
Units, whichever is greater, of any Pennsylvania IM-IT Trust will receive an
additional $2.00 per each such Unit. In addition, the Sponsor has entered into
agreements with Advest, Inc. ("Advest" ) and Gruntal & Co., Inc. ("
Gruntal" ) whereby Advest and Gruntal will receive an additional $2.00 per
Unit in connection with a minimum commitment of 1,500 Units of any New York
IM-IT Trust. In addition, the Sponsor and J. J. B. Hilliard, W. L. Lyons, Inc.
("Hilliard, Lyons" ) have entered into an agreement under which
Hilliard, Lyons may receive an additional $2.00 for each Unit of the Kentucky
Quality Trust which it underwrites, provided it underwrites a minimum of 400
Units of such Trust. See "Unitholder Explanations--Public
Offering--General." Further, each Underwriter who underwrites 1,000 or
more Units in any Trust will receive additional compensation from the Sponsor
of $1.00 for each Unit it underwrites. The breakpoints listed herein will also
be applied on a dollar basis (in addition to the Unit basis described herein)
utilizing a breakpoint equivalent of $1,000 per Unit and will be applied on
whichever basis is more favorable to the Underwriter.

In addition, the Sponsor and certain of the Underwriters will realize a profit
or the Sponsor will sustain a loss, as the case may be, as a result of the
difference between the price paid for the Securities by the Sponsor and the
cost of such Securities to a Trust (which is based on the determination by
Interactive Data Corporation of the aggregate offering price of the underlying
Securities in such Trust on the Date of Deposit). See "Unitholder
Explanations--Underwriting" herein and "Portfolio" for the
applicable Trust and "Notes to Portfolios" in Part I of this
Prospectus. The Sponsor and the Underwriters may also realize profits or
sustain losses with respect to Securities deposited in each Trust which were
acquired by the Sponsor from underwriting syndicates of which they were
members. The Sponsor has not participated as sole underwriter or as manager or
as a member of the underwriting syndicates from which the Securities in the
Trusts were acquired. The Underwriters may further realize additional profit
or loss during the initial offering period as a result of possible
fluctuations in the market value of the Securities in each Trust after the
Date of Deposit, since all proceeds received from purchasers of Units
(excluding dealer concessions or agency commissions allowed, if any) will be
retained by the Underwriters. Affiliates of an Underwriter are entitled to the
same dealer concessions or agency commissions that are available to the
Underwriter.

As stated under "Unitholder Explanations--Public Offering--Market for
Units" , the Sponsor intends to, and certain of the other Underwriters may,
maintain a secondary market for the Units of the Fund. In so maintaining a
market, such person or persons will also realize profits or sustain losses in
the amount of any difference between the price at which Units are purchased
and the price at which Units are resold (which price is based on the bid
prices of the Securities in a Trust and includes a sales charge). In addition,
such person or persons will also realize profits or sustain losses resulting
from a redemption of such repurchased Units at a price above or below the
purchase price for such Units, respectively.

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 to the Fund for certain state tax matters are named under "
Tax Status" for each Trust appearing in Part I of this Prospectus. Kroll &
Tract LLP has acted as counsel for the Trustee and as special counsel to the
Fund for New York tax matters. None of the special counsel for the Fund has
expressed any opinion regarding the completeness or materiality of any matters
contained in this Prospectus other than the tax opinion set forth under "
Tax Status" relating to the Trust for which it has provided an opinion in
Part I of this Prospectus.

Independent Certified Public Accountants. The statements of condition and the
related securities portfolios at the Date of Deposit included in this
Prospectus have been audited by Grant Thornton LLP, independent certified
public accountants, as set forth in their report in this Prospectus, and are
included herein in reliance upon the authority of said firm as experts in
accounting and auditing.

FEDERAL TAX STATUS

- --------------------------------------------------------------------------
In the opinion of Chapman and Cutler, counsel for the Sponsor, under existing
law as of the date of this Part II of the Prospectus:

(1)Each Trust 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;
however such interest may be taken into account in computing the alternative
minimum tax, an additional tax on branches of foreign corporations and the
environmental tax (the "Superfund Tax" ), as noted below;

(2)Each Unitholder is considered to be the owner of a pro rata portion of each
asset of the respective Trust under subpart E, subchapter J of chapter 1 of
the Code and will have a taxable event when such Trust 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 the
respective Trust, if any, on Bonds delivered after the Unitholders pay for
their Units to the extent that such interest accrued on such Bonds before the
date the Trust acquired ownership of the Bonds (and the amount of this
reduction may exceed the amount of accrued interest paid to the seller) and,
consequently, such Unitholders may have an increase in taxable gain or
reduction in capital loss upon the disposition of such Units. Gain or loss
upon the sale or redemption of Units is measured by comparing the proceeds of
such sale or redemption with the adjusted basis of the Units. If the Trustee
disposes of Bonds (whether by sale, payment on maturity, redemption or
otherwise), gain or loss is recognized to the Unitholder (subject to various
non-recognition provisions of the Code). The amount of any such gain or loss
is measured by comparing the Unitholder's pro rata share of the total proceeds
from such disposition with the Unitholder's basis for his or her fractional
interest in the asset disposed of. In the case of a Unitholder who purchases
Units, such basis (before adjustment for earned original issue discount and
amortized bond premium, if any) is determined by apportioning the cost of the
Units among each of the Trust assets ratably according to value as of the
valuation date nearest the date of acquisition of the Units. The tax basis
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 less than or equal to
his original cost;

(3)Any proceeds paid under an insurance policy or policies dated the Date of
Deposit, issued to an Insured Trust by AMBAC Indemnity, Financial Guaranty or
a combination thereof with respect to the 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 provided that, at the time such policies are purchased, the
amounts paid for such policies are reasonable, customary and consistent with
the reasonable expectation that the issuer of the obligations, rather than the
insurer, will pay debt service on the obligations; and

(4)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 excludable if paid in the normal course by the
issuer of the defaulted obligations provided that, at the time such policies
are purchased, the amounts paid for such policies are reasonable, customary
and consistent with the reasonable expectation that the issuer of the
obligations, rather than the insurer, will pay debt service on the obligations.

Sections 1288 and 1272 of 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 Bond, depending on the date the Bond was
issued. In addition, special rules apply if the purchase price of a 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" ) to prior owners. If a Bond is acquired with accured
interest, that portion of the price paid for the accrued interest is added to
the tax basis of the Bond. When this accrued interest is received, it is
treated as a return of capital and reduces the tax basis of the Bond. If a
Bond is purchased for a premium, the amount of the premium is added to the tax
basis of the Bond. Bond premium is amortized over the remaining term of the
Bond, and the tax basis of the Bond is reduced each tax year by the amount of
the premium amortized in that tax year. The application of these rules will
also vary depending on the value of the Bond on the date a Unitholder acquires
his Units and the price the Unitholder pays for his Units. Unitholders should
consult with their tax advisers regarding these rules and their application. 

"The Revenue Reconciliation Act of 1993" (the "Tax Act" )
subjects tax-exempt bonds to the market discount rules of the Code effective
for bonds purchased after April 30, 1993. In general, market discount is the
amount (if any) by which the stated redemption price at maturity exceeds an
investor's purchase price (except to the extent that such difference, if any,
is attributable to original issue discount not yet accrued), subject to a
statutory de minimis rule. Market discount can arise based on the price a
Trust pays for Bonds or the price a Unitholder pays for his or her Units.
Under the Tax Act, accretion of market discount is taxable as ordinary income;
under prior law the accretion had been treated as capital gain. Market
discount that accretes while a Trust holds a Bond would be recognized as
ordinary income by the Unitholders when principal payments are received on the
Bond, upon sale or at redemption (including early redemption), or upon the
sale or redemption of his or her Units, unless a Unitholder elects to include
market discount in taxable income as it accrues. 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 for taxable years beginning after December 31, 1986 depends 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 the Fund. Under current Code provisions, the
Superfund Tax does not apply to tax years beginning on or after January 1,
1996. However, the Superfund Tax could be extended retroactively. Under the
provisions of Section 884 of the Code, a branch profits tax is levied on the
"effectively connected earnings and profits" of certain foreign
corporations which include tax-exempt interest such as interest on the Bonds
in the Trust. Unitholders should 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 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. The U.S.
Treasury Department has proposed extending the financial institution rules to
all corporations. Investors with questions regarding this issue should consult
with their tax advisers.

In the case of certain of the Bonds in the Fund, the opinions of bond counsel
indicate that interest on such Bonds received by a "substantial user" 
of the facilities being financed with the proceeds of these Bonds, or persons
related thereto, for periods while such Bonds are held by such a user or
related person, will not be excludible from Federal gross income, although
interest on such Bonds received by others would be excludible from Federal
gross income. "Substantial user" and "related person" are
defined under the Code and 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.

In the opinion of Kroll & Tract LLP, special counsel to the Fund for New York
tax matters, under existing law, the Fund and each Trust are not associations
taxable as corporations and the income of each Trust will be treated as the
income of the Unitholders under the income tax laws of the State and City of
New York.

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
Fund of the proceedings relating to the issuance of the Bonds or of the basis
for such opinions.

In the case of corporations, the alternative tax rate applicable to long-term
capital gains is 35%, effective for long-term capital gains realized in
taxable years beginning on or after January 1, 1993. For taxpayers other than
corporations, net capital gains (which are defined as net long-term capital
gain over net short-term capital loss for a taxable year) are subject to a
maximum marginal stated tax rate of 28%. 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 50% of Social Security
benefits are includible in gross income to the extent that the sum of "
modified adjusted gross income" plus 50% 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% of Social Security benefits are includible in gross income to
the extent that the sum of "modified adjusted gross income" plus 50%
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 a Trust, will be subject to tax. A taxpayer whose adjusted
gross income already exceeds the base amount or the adjusted base amount must
include 50% or 85%, respectively, 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.

Ownership of the Units may result in collateral federal income tax
consequences to certain taxpayers, including, without limitation, corporations
subject to either the environmental tax or the branch profits tax, financial
institutions, certain insurance companies, certain S corporations, individual
recipients of Social Security or Railroad Retirement benefits and taxpayers
who may be deemed to have incurred (or continued) indebtedness to purchase or
carry tax-exempt obligations. Prospective investors should consult their tax
advisors as to the applicability of any collateral consequences.

For a discussion of the state tax status of income earned on Units of a Trust,
see "Tax Status" for the applicable Trust in Part I of this
Prospectus. 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.

DESCRIPTION OF RATINGS

- --------------------------------------------------------------------------
Standard & Poor's, A Division of the McGraw-Hill Companies. A Standard &
Poor's municipal bond rating is a current assessment of the creditworthiness
of an obligor with respect to a specific debt obligation. This assessment of
creditworthiness may take into consideration obligors such as guarantors,
insurers or lessees.

The bond rating is not a recommendation to purchase or sell a security,
inasmuch as it does not comment as to market price.

The ratings are based on current information furnished to Standard & Poor's by
the issuer and obtained by Standard & Poor's from other sources it considers
reliable. The ratings may be changed, suspended or withdrawn as a result of
changes in, or unavailability of, such information.

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 arrangements under the laws of
bankruptcy and other laws affecting creditors' rights.

AAA--This is the highest rating assigned by Standard & Poor's to a debt
obligation and indicates an extremely strong capacity to pay principal and
interest.

AA--Bonds rated AA also qualify as high-quality debt obligations. Capacity to
pay principal and interest is very strong, and in the majority of instances
they differ from AAA issues only in small degree.

A--Bonds rated A have a strong capacity to pay principal and interest,
although they are somewhat more susceptible to the adverse effects of changes
in circumstances and economic conditions.

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 debt in this category than in higher rated categories.

Plus (+) or Minus (-): To provide more detailed indications of credit quality,
the ratings from "AA" to "BBB" may be modified by the addition
of a plus or minus sign to show relative standing within the major rating
categories.

Provisional Ratings: A provisional rating ("p" ) assumes the successful
completion of the project being financed by the issuance of the bonds being
rated and indicates that payment of debt service requirements is largely or
entirely dependent upon the successful and timely completion of the project.
This rating, however, while addressing credit quality subsequent to
completion, makes no comment on the likelihood of, or the risk of default upon
failure of, such completion. Accordingly, the investor should exercise his own
judgment with respect to such likelihood and risk.

Moody's Investors Service, Inc. A brief description of the applicable Moody's
rating symbols and their meanings follows:

Aaa--Bonds which are rated Aaa are judged to be the best quality. They carry
the smallest degree of investment risk and are generally referred to as "
gilt edge" . Interest payments are protected by a large, or by an
exceptionally stable, margin and principal is secure. While the various
protective elements are likely to change, such changes as can be visualized
are most unlikely to impair the fundamentally strong position of such issues.
With the occasional exception of oversupply in a few specific instances, the
safety of obligations of this class is so absolute that 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. These Aa bonds are high grade, their market value 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 higher 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
credit circumstances during a sustained period of depressed business
conditions. During periods of normalcy, bonds of this quality frequently move
in parallel with Aaa and Aa obligations, with the occasional exception of
oversupply in a few specific instances.

Baa--Bonds which are rated Baa are considered as medium grade obligations;
i.e., they are neither highly protected nor poorly secured. Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.

Moody's bond rating symbols may contain numerical modifiers of a generic
rating classification. The modifier 1 indicates that the bond ranks at the
high end of its category; the modifier 2 indicates a mid-range ranking; and
the modifier 3 indicates that the issue ranks in the lower end of its generic
rating category.

Con--Bonds for which the security depends upon the completion of some act or
the fulfillment of some condition are rated conditionally. These are bonds
secured by (a) earnings of projects under construction, (b) earnings of
projects unseasoned in operating 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.

As published by the rating companies.

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
Fund, the Sponsor or the Underwriters. 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.

<TABLE>
<CAPTION>
Title                                                       Page                                                             
<S>                                                         <C>  
INTRODUCTION                                                2    
UNITHOLDER EXPLANATIONS                                     3    
Settlement of Bonds in the Trusts                           3    
The Fund                                                    3    
Objectives and Securities Selection                         4    
Risk Factors                                                4    
Replacement Bonds                                           8    
Distributions                                               9    
Change of Distribution Option                               9    
Certificates                                                9    
Estimated Current Returns and Estimated Long-Term Returns   10   
Accrued Interest                                            11   
Public Offering                                             11   
General                                                     11   
Offering Price                                              13   
Market for Units                                            15   
Distributions of Interest and Principal                     15   
Reinvestment Option                                         16   
Redemption of Units                                         16   
Reports Provided                                            17   
Insurance on the Bonds in the Insured Trusts                18   
Underwriting                                                21   
TRUST ADMINISTRATION                                        22   
Fund Administration and Expenses                            22   
Sponsor                                                     22   
Compensation of Sponsor and Evaluator                       23   
Trustee                                                     23   
Trustee's Fee                                               24   
Portfolio Administration                                    24   
Sponsor Purchases of Units                                  25   
Insurance Premiums                                          25   
Miscellaneous Expenses                                      25   
General                                                     25   
Amendment or Termination                                    25   
Limitation on Liabilities                                   26   
Unit Distribution                                           27   
Sponsor and Underwriter Compensation                        28   
Legal Opinions                                              29   
Independent Certified Public Accountants                    29   
FEDERAL TAX STATUS                                          30   
DESCRIPTION OF RATINGS                                      33   
</TABLE>

This Prospectus contains information concerning the Fund and the Sponsor, but
does not contain all of the information set forth in the registration
statements and exhibits relating thereto, which the Fund has 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
hereby made. 

PROSPECTUS

PART II

February 1997

Insured MunicipalsIncome Trust,Insured Multi-SeriesandInsured MunicipalsIncome
Trust andInvestors' Quality Tax-Exempt Trust,Multi-Series

A Wealth of Knowledge A Knowledge of Wealthsm 

VAN KAMPEN AMERICAN CAPITAL

One Parkview Plaza
Oakbrook Terrace, Illinois 60181

2800 Post Oak Boulevard
Houston, Texas 77056

This Part II of the Prospectus may not be distributed unless
accompanied by Part I. Both Parts of this Prospectus should be
retained for future reference


                   Contents of Registration Statement
     
     This  Amendment  of Registration Statement comprises  the  following
papers and documents:

     The facing sheet
     The Cross-Reference sheet
     The Prospectus
     The signatures
     The consents of independent public accountants, ratings
        services and legal counsel

The following exhibits:

1.1  Copy of Trust Agreement.

1.5  Copy of Agreement Among Underwriters.

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

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

3.3  Opinion  and consent of counsel as to New York income tax status  of
     the Fund under New York law.

3.4  Opinion  and consent of counsel as to income tax status to  Michigan
     residents of Units of the Michigan IM-IT Trust.

3.5  Opinion  and  consent of counsel as to income  tax  status  to  Ohio
     residents of Units of the Ohio IM-IT Trust.

4.1  Consent of Interactive Data Corp.

4.2  Consent of Standard & Poor's.

4.3  Consent of Grant Thornton LLP.

EX-27     Financial Data Schedules
                               Signatures
     
     The Registrant, Insured Municipals Income Trust, 217th Insured Multi-
Series  hereby identifies Insured Municipals Income Trust,  77th  Insured
Multi-Series  and Insured Municipals Income Trust and Investors'  Quality
Tax-Exempt  Trust,  Multi-Series 189 for purposes of the  representations
required  by  Rule  487  and  represents the  following:   (1)  that  the
portfolio  securities  deposited in the series as to  the  securities  of
which this Registration Statement is being filed do not differ materially
in  type  or  quality from those deposited in such previous  series;  (2)
that,  except to the extent necessary to identify the specific  portfolio
securities  deposited in, and to provide essential financial  information
for, the series with respect to the securities of which this Registration
Statement  is being filed, this Registration Statement does  not  contain
disclosures  that differ in any material respect from those contained  in
the  registration statements for such previous series  as  to  which  the
effective  date  was determined by the Commission or the staff;  and  (3)
that it has complied with Rule 460 under the Securities Act of 1933.
     
     Pursuant  to  the requirements of the Securities Act  of  1933,  the
Registrant,  Insured Municipals Income Trust, 217th Insured  Multi-Series
has duly caused this Amendment to the 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 30th day of May, 1997.

                                    Insured Municipals Income Trust
                                      217th Insured Multi-Series
                                    
                                    By Van Kampen American Capital
                                       Distributors, Inc.
                                    
                                    
                                    By Sandra A. Waterworth
                                       Vice President
     
     Pursuant  to  the requirements of the Securities Act of  1933,  this
Amendment to the Registration Statement has been signed below on May  30,
1997  by the following persons who constitute a majority of the Board  of
Directors of Van Kampen American Capital Distributors, Inc.

 Signature                 Title

Don G. Powell       Chairman and Chief Executive  )
                      Officer                     )

William R. Molinari President and Chief           )
                      Operating Officer

Ronald A. Nyberg    Executive Vice President and  )
                      General Counsel

William R. Rybak    Executive Vice President and  )
                      Chief Financial Officer     )Sandra A. Waterworth
                                                   (Attorney-in-fact*)

*An  executed  copy of each of the related powers of attorney  was  filed
with  the  Securities  and Exchange Commission  in  connection  with  the
Registration  Statement  on Form S-6 of Insured Municipals  Income  Trust
and  Investors' Quality Tax-Exempt Trust, Multi-Series 203 (File No.  33-
65744)  and  with  the  Registration Statement on  Form  S-6  of  Insured
Municipals  Income Trust, 170th Insured Multi-Series (File No.  33-55891)
and the same are hereby incorporated herein by this reference.


                                                           Exhibit 1.1

                     Insured Municipals Income Trust
                       217th Insured Multi-Series
                                    
                             Trust Agreement
                                    
                                                     Dated:  May 30, 1997
     
     This   Trust   Agreement   between  Van  Kampen   American   Capital
Distributors, Inc., as Depositor, American Portfolio Evaluation Services,
a  division of Van Kampen American Capital Investment Advisory Corp.,  as
Evaluator,  and  The  Bank of New York, as Trustee,  sets  forth  certain
provisions in full and incorporates other provisions by reference to  the
document entitled "Standard Terms and Conditions of Trust, For Van Kampen
American  Capital Distributors, Inc. Tax-Exempt Trust,  Dated  March  16,
1995"  (herein called the "Standard Terms and Conditions of Trust"),  and
such  provisions  as  are set forth in full and such  provisions  as  are
incorporated by reference constitute a single instrument.  All references
herein  to  Articles  and Sections are to Articles and  Sections  of  the
Standard Terms and Conditions of Trust.
                                    
                                    
                            Witnesseth That:
     
     In consideration of the premises and of the mutual agreements herein
contained, the Depositor and the Trustee agree as follows:
                                    
                                    
                                 Part I
                                    
                                    
                 Standard Terms and Conditions of Trust
     
     Subject  to  the  provisions of Part II hereof, all  the  provisions
contained  in  the  Standard Terms and Conditions  of  Trust  are  herein
incorporated by reference in their entirety and shall be deemed to  be  a
part  of  this instrument as fully and to the same extent as though  said
provisions had been set forth in full in this instrument.
                                    
                                    
                                 Part II
                                    
                                    
                  Special Terms and Conditions of Trust
     
     The following special terms and conditions are hereby agreed to:
     
          (a)    The  Bonds  defined in Section 1.01(4),  listed  in  the
     Schedules hereto, have been deposited in the Trusts under this Trust
     Agreement.
     
          (b)   The fractional undivided interest in and ownership of the
     various  Trusts represented by each Unit thereof is the  amount  set
     forth  under  "Summary of Essential Financial Information-Fractional
     Undivided Interest in the Trust per Unit" in Prospectus Part I.
     
          (c)    The approximate amounts, if any, which the Trustee shall
     be  required to advance out of its own funds and cause to be paid to
     the  Depositor pursuant to Section 3.05 shall be the amount per Unit
     that the Trustee agreed to reduce its fee or pay Trust expenses  set
     forth  in the footnotes to the "Per Unit Information" for each Trust
     in  Prospectus  Part  I  times the number of  units  in  such  Trust
     referred to in Part II (b) of this Trust Agreement.
     
         (d)   The First General Record Date and the amount of the second
     distribution of funds from the Interest Account of each Trust  shall
     be the record date for the Interest Account and the amount set forth
     under "Per Unit Information" for each Trust in Prospectus Part I.
     
          (e)    The  First Settlement Date shall be the date  set  forth
     under  "Summary of Essential Financial Information-First  Settlement
     Date" in Prospectus Part I.
     
          (f)    Any monies held to purchase "when issued" bonds will  be
     held in noninterest bearing accounts.
     
          (g)    The  Evaluation Time for purpose of  sale,  purchase  or
     redemption of Units shall be 4:00 P.M. Eastern time.
     
          (h)    As  set  forth  in Section 3.05, the  Record  Dates  and
     Distribution Dates for each Trust are those dates set forth  in  the
     section entitled "Per Unit Information" for each Trust as appears in
     Prospectus Part I.
     
          (i)    As  set  forth  in Section 3.15, the Evaluator's  Annual
     Supervisory  Fee  shall  be that amount set  forth  in  "Summary  of
     Essential Financial Information-Evaluator's Annual Supervisory  Fee"
     in Prospectus Part I.
     
          (j)    As  set  forth  in Section 4.03, the Evaluator's  Annual
     Evaluation Fee shall be that amount, and computed on that basis, set
     forth  in  "Summary  of  Essential Financial Information-Evaluator's
     Annual Evaluation Fee" in Prospectus Part I
     
          (k)    The  Trustee's annual compensation as  set  forth  under
     Section  6.04, under each distribution plan shall be that amount  as
     specified in Prospectus Part I under the section entitled "Per  Unit
     Information"  for each Trust and will include a fee  to  induce  the
     Trustee to advance funds to meet scheduled distributions.
     
          (l)   The sixth paragraph of Section 3.05 is hereby revoked and
     replaced by the following paragraph:
          
                      Unitholders   desiring   to   receive   semi-annual
          distributions and who purchase their Units prior to the  Record
          Date  for  the  second distribution under the monthly  plan  of
          distribution  may  elect  at the time of  purchase  to  receive
          distributions on a semi-annual basis by notice to the  Trustee.
          Such  notice  shall  be  effective with respect  to  subsequent
          distributions until changed by further notice to  the  Trustee.
          Unitholders  desiring to receive semi-annual distributions  and
          who purchase their Units prior to the Record Date for the first
          distribution  may  elect  at the time of  purchase  to  receive
          distributions on a semi-annual basis by notice to the  Trustee.
          Such  notice  shall  be  effective with respect  to  subsequent
          distributions until changed by further notice to  the  Trustee.
          Changes in the plan of distribution will become effective as of
          opening of business on the day after the next succeeding  semi-
          annual  Record Date and such distributions will continue  until
          further notice.
     
          (m)    Sections  8.02(d)  and 8.02(e) are  hereby  revoked  and
     replaced with the following:
          
               (d)    distribute  to each Unitholder of such  Trust  such
          holder's pro rata share of the balance of the Interest  Account
          of such Trust;
          
               (e)    distribute  to each Unitholder of such  Trust  such
          holder's pro rata share of the balance of the Principal Account
          of such Trust; and
          
          In  Witness  Whereof, Van Kampen American Capital Distributors,
     Inc.  has caused this Trust Agreement to be executed by one  of  its
     Vice  Presidents or Assistant Vice Presidents and its corporate seal
     to  be  hereto affixed and attested by its Secretary or one  of  its
     Vice   Presidents  or  Assistant  Secretaries,  American   Portfolio
     Evaluation  Services,  a  division of Van  Kampen  American  Capital
     Investment  Advisory  Corp., has caused  this  Trust  Indenture  and
     Agreement  to  be  executed by its President  or  one  of  its  Vice
     Presidents and its corporate seal to be hereto affixed and  attested
     to by its Secretary, its Assistant Secretary or one of its Assistant
     Vice  Presidents  and The Bank of New York, has  caused  this  Trust
     Agreement  to  be  executed by one of its Vice  Presidents  and  its
     corporate  seal to be hereto affixed and attested to by one  of  its
     Vice  Presidents, Assistant Vice Presidents or Assistant Treasurers;
     all as of the day, month and year first above written.

                                    Van Kampen American Capital
                                    Distributors, Inc.
                                    
                                    
                                    By  Sandra A. Waterworth
                                        Vice President
(Seal)
Attest:
By Gina M. Scumaci
   Assistant Secretary

                                    American Portfolio Evaluation
                                       Services, a division of Van Kampen
                                       American Capital Investment
                                       Advisory Corp.
                                    
                                    
                                    By  Dennis J. Mcdonnell
                                        President
(Seal)
Attest:
By Scott E. Martin
   Secretary

                                    The Bank Of New York
                                    
                                    By  Jeffrey Bieselin
                                        Vice President
(Seal)
Attest:
By Norbert Loney
   Assistant Treasurer
                     
                      Schedules To Trust Agreement
                     Securities Initially Deposited
                                   In
       Insured Municipals Income Trust, 217th Insured Multi-Series

(Note:  Incorporated herein and made a part hereof as indicated below are
     the corresponding "Portfolios" of each of the Trusts as set forth in
     the Prospectus.)


                                                               Exhibit 1.5

                                                      Dated:  June 1, 1992
                                    
                   Master Agreement Among Underwriters
                 For Unit Investment Trusts Sponsored by
             Van Kampen American Capital Distributors, Inc.

Van Kampen American Capital Distributors, Inc.
One Parkview Plaza
Oakbrook Terrace, Illinois 60181

Gentlemen:

     1.   The Trust.  We understand that you, Van Kampen American Capital
Distributors, Inc. (the "Sponsor"), are entering into this agreement (the
"Agreement") in counterparts with us and other firms who  may  be
underwriters for issues of various series of unit investment trusts for
which you will act as Sponsor.  This Agreement shall apply to any
offering after May 1, 1992 of units of fractional undivided interest in
such various series unit investment trusts in which we elect to act as an
underwriter  (underwriters with respect to each such trust  being
hereinafter called "Underwriters") after receipt of a notice from you
stating the name and size of the trust and that our participation as an
Underwriter in the proposed offering shall be subject to the provisions
of this Agreement.  The issuer of the units of fractional undivided
interests in a series of a unit investment trust offered in any offering
of units made pursuant to this Agreement is hereinafter referred to as
the "Trust" and the reference to "Trust" in this Agreement applies only
to such Trust, and such units of such Trust offered are hereinafter
called the "Units".  Each Trust is or will be registered as a "unit
investment trust" under the Investment Company Act of 1940 (the "1940
Act") by appropriate filings with the Securities and Exchange Commission
(the "Commission").  Additionally, each Trust is or will be registered
with the Commission under the Securities Act of 1933 (the "1933 Act") on
Form S-6 or its successor forms, including a proposed form of prospectus
(the "Preliminary Prospectus").
     
     The registration statement as finally amended and revised at the
time it becomes effective is herein referred to as the "Registration
Statement" and the related prospectus is herein referred to as the
"Prospectus", except that if the prospectus filed by the Trust pursuant
to Rule 424(b) under the 1933 Act shall differ from the prospectus on
file at the time the Registration Statement shall become effective, the
term "Prospectus" shall refer to the prospectus filed pursuant to Rule
424(b) from and after the date on which it shall have been filed.
     
     The following provisions of this Agreement shall apply separately to
each individual offering of Units by a Trust.
     
     We understand that as of the date upon which we have agreed to
underwrite Units of the Trust the Commission shall not have issued any
order preventing or restraining the use of any Preliminary Prospectus
and, further, that each Preliminary Prospectus shall conform in all
material respects to the requirements of the 1933 Act and the Rules and
Regulations thereunder and, as of its date, shall not include any untrue
statement of a material fact or omit to state a material fact necessary
to make the statements therein not misleading; and when the Registration
Statement becomes effective, it and the Prospectus, and any amendments or
supplements thereto, will contain all statements that are required to be
stated therein in accordance with the 1933 Act and the Rules  and
Regulations thereunder and will in all material respects conform to the
requirements of the 1933 Act and the Rules and Regulations thereunder,
and neither the Registration Statement nor the Prospectus, nor any
amendment or supplement thereto, will contain any untrue statement of a
material fact or omit to state a material fact required to be stated
therein or necessary to make the statements therein not misleading;
provided, however, that you make no representation or warranty as to
information contained in or omitted from any Preliminary Prospectus, the
Registration  Statement, the Prospectus or any such amendment  or
supplement, in reliance upon and in conformity with, written information
furnished to you by or on behalf of any Underwriter specifically for use
in the preparation thereof.

     2.   Designation and Authority of Representative.  You are hereby
authorized to act as our representative (the "Representative") in
connection with all matters to which this Agreement relates and to take
the action provided herein to be taken by you as you may otherwise deem
necessary or advisable.  We understand that we have no obligations under
this Agreement with respect to any Trust in which we choose not to
participate as an Underwriter.
     
     You will be under no liability to us for any act or omission except
for obligations expressly assumed by you herein and no obligations on
your  part will be implied or inferred herefrom.  The rights  and
liabilities of the respective parties hereto are several and not joint,
and nothing herein or hereunder will constitute then a partnership,
association or separate entity.

     3.   Profit or Loss in Acquisition of Securities.  It is understood
that the acquisition of securities (the "Securities") for deposit in the
portfolio of the Trust shall be at your cost and risk.  We acknowledge
that you will share with us any net deposit profits in the amounts and to
the  extent,  if  any, indicated under "Sponsor  and  Underwriter
Compensation" in the Prospectus.  For the purposes of determining the
number of Units underwritten, we understand that we will be credited for
that number of Units set forth opposite our name in the section entitled
"Underwriting" in the prospectus.
     
     We agree that you shall have no liability (as Representative or
otherwise)  with  respect to the issue form, validity,  legality,
enforceability, value of, or title to the Securities, except for the
exercise of due care in determining the genuineness of such Securities
and the conformance thereof with the descriptions and qualifications
appearing in the Prospectus.

     4.   Purchase of Units.  Promptly after you make a determination to
offer Units of a Trust and you inquire as to whether we desire to
participate in such offering, we will advise you promptly as to the
number of Units which we will purchase or of our decision not  to
participate in such offering.  Such advice may be written or oral.  The
delivery to the Sponsor of a completed Schedule A to this Agreement shall
constitute adequate written advice.  Oral advice shall be binding but
shall be promptly confirmed in writing by us by means of telegraph,
telegram or other form of wire or facsimile transmission.  Such written
confirmation shall contain the information requested by Schedule A to
this Agreement.  You may rely on and we hereby commit on the terms and
conditions of this Agreement to purchase and pay for the number of Units
of the Trust set forth in such advice (the "Unit Commitment").  Our Unit
Commitment may be increased only by mutual agreement between us and you
at any time prior to the date as of which the Trust Agreement for the
Trust is executed (the "Date of Deposit").  We agree that you in your
sole discretion reserve the right to decrease our Unit Commitment at any
time prior to the Date of Deposit and if you so elect to make such a
decrease, you will notify us of such an election by telephone and
promptly confirm the same in writing.
     
     The price to be paid for such Units shall be the Public Offering
Price per Unit (as defined in the Prospectus) as first determined on the
Date of Deposit or such later determination on such Date of Deposit as
you shall advise us, less the sum per Unit indicated under "Sponsor and
Underwriter Compensation" in the Prospectus.  Further, each Underwriter
who underwrites that number of Units indicated under "Sponsor and
Underwriter Compensation" in the Prospectus will receive from the Sponsor
that additional compensation indicated under such section of  the
Prospectus for each Unit it underwrites, providing the Trust size is in
excess of that number of Units, if any, indicated under such section of
the Prospectus.  At the Date of Deposit, we will become the owner of the
Units and be entitled to the benefits (except for interest, if any,
accruing from the Date of Deposit to the First Settlement Date) as well
as the risks inherent therein.  We acknowledge that those persons, if
any, named in the Prospectus under "Sponsor and Underwriter Compensation"
are Managing or Co-Managing Underwriters of the Trust, as indicated
therein, and we acknowledge that those persons specifically named therein
will receive as additional compensation those respective per Unit amounts
set forth in such section of the Prospectus.
     
     You  are authorized to retain custody of our Units until the
Registration Statement relating thereto has become effective under the
1933 Act and you shall have received payment from us for such Units.
     
     You are authorized to file an amendment to said Registration
Statement describing the Securities and furnishing information based
thereon or relating thereto and any further amendments or supplements to
the Registration Statement or Prospectus which you may deem necessary or
advisable.  We will furnish to you upon your request such information as
will be required to insure that the Registration Statement and Prospectus
are current insofar as they relate to us and we thereafter continue to
furnish you with such information as may be necessary to keep current and
correct the information previously supplied.
     
     We understand that the Trust will also take action with respect to
the offering and sale of Units in accordance with the Blue Sky or
securities laws of certain states in which it is proposed that the Units
may be offered and sold.

     5.   Public Offering.  You agree that you will advise us promptly
when the Registration Statement has become effective, and we agree that
when we are advised that the Units are released for public offering, we
will make a public offering thereof by means of the Prospectus under the
1933 Act, as amended, which describes the deposit of Securities and
related information.  The Public Offering Price and the terms and
conditions of the public offering shall be as set forth in the Prospectus
and shall rely with respect to the offering price of the Securities upon
the determination of the Evaluator named in the Prospectus.  Public
advertisement of the offering, if any, shall be made by you on behalf of
the Underwriters on such date as you shall determine.  We agree that
before we use any Trust advertising material which we have created, we
will obtain your prior approval to use such advertising materials.

     6.   Public Offering Price.  We agree that each day while this
Agreement is in effect and the evaluation of the Trust is made by the
Evaluator named in the Prospectus, we will contact you  for  such
evaluation and of the resultant Public Offering Price for the purpose of
the offering and sale of the respective Units to the public.  We agree as
required by Section 22(d) of the 1940 Act to offer and sell our Units at
the current Public Offering Price described in the Prospectus.

     7.   Permitted Transactions.  It is agreed that part or all of the
Units purchased by us may be sold to dealers, or other entities with whom
we can legally grant a concession or agency commission, only at the then
effective Public Offering Price, less the concession described in the
Prospectus.
     
     From time to time prior to the termination of this Agreement, at
your Request, we will advise you of the number of our Units which remain
unsold and, at your request, we agree to deliver to you any of such
unsold Units to be sold for our account to retail accounts or, less the
concession or agency commission then effective, to dealers or others.
     
     If prior to the termination of this Agreement, or such earlier date
as you may determine and advise us thereof in writing, you shall purchase
or contract to purchase any of our Units or any Units issued in exchange
therefor, in the open market or otherwise, or if any such Units shall be
tendered to the Trustee for redemption because not effectively placed for
investment by us, we agree to repurchase such Units at a price equal to
the  total cost of such purchase, including accrued interest  and
commissions, if any, and transfer taxes on redelivery.  Regardless of the
amount paid on the repurchase of any such Units, it is agreed that they
may be resold by us only at the then effective Public Offering Price.
     
     Until the termination of this Agreement, we agree that we will make
no purchase of Units other than (i) purchases provided for in this
Agreement, (ii) purchases approved by you and (iii) purchases as broker
in executing unsolicited orders.

     8.   Compliance With Commission Order.  We hereby agree as follows:
(a) we will refund all sales charges to purchasers of Units from us or
any dealer participating in the distribution of Units who purchased such
Units from us if, within ninety days from the time that the Registration
Statement of the respective Units under the 1933 Act shall have become
effective, (i) the net worth of the trust shall be reduced to less than
20% of the principal amount of Securities originally deposited therein or
(ii) the Trust shall have been terminated; (b) you may instruct the
Trustee on the Date of Deposit that, in the event that redemption by any
Underwriters of Units constituting part of any unsold allotment of Units
shall result in the Trust having a net worth of less than 40% of the
principal amount of Securities originally deposited therein, the Trustee
shall terminate the Trust in the manner provided in the Trust Indenture
and  Agreement (as defined in the Prospectus) and distribute  the
Securities and other assets of the Trust pursuant to the provisions of
the Trust Indenture and Agreement; and (c) in the event that the Trust
shall have been terminated pursuant to (b) above, we will refund any
sales charges to any purchaser of such Units who purchased from us, or
purchased from a dealer participating in the distribution of such Units
who purchased such Units from us.  We authorize you to charge our account
for all refunds of sales charges in respect to our Units.

     9.   Substitution of Underwriters.  We authorize you to arrange for
the substitution hereunder of other persons, who may include you and us,
for all or any part of the commitment of any nondefaulting Underwriter
with the consent of such Underwriter, and of any defaulting Underwriter
without the consent thereof, upon such terms and conditions as you may
deem advisable, provided that the number of Units to be purchased by us
shall not be increased without our consent and that such substitution
shall not in any way affect the liability of any defaulting Underwriter
to the other Underwriters for damages from such default, nor relieve any
other Underwriter of any obligation under this Agreement.  The expenses
chargeable to the account of any defaulting Underwriter and not paid for
by it or by a person substituted for such Underwriter and any additional
losses or expenses arising from such default shall be considered to be
expenses under this Agreement and shall be charged against the accounts
of the nondefaulting Underwriters in proportion to their respective
commitments.

    10.   Termination.  This Agreement shall terminate with respect to
each Trust which we have agreed to underwrite 30 days after the date on
which  the public offering of the Units of such Trust is made  in
accordance with Section 5 hereof unless sooner terminated by you,
provided that you may extend this Agreement for not more than eleven
successive periods of 30 days each upon notice to us and each of the
other Underwriters.
     
     Notwithstanding any settlement on the termination of this Agreement,
we agree to pay our share of any amount payable on account of any claim,
demand or liability which may be asserted against the Underwriters, or
any of them, based on the claim that the Underwriters constitute an
association, unincorporated business or other separate entity and our
share of any expenses incurred by you in defending against any such
claim, demand or liability.  We also agree to pay any stamp taxes which
may be assessed and paid after such settlement on account of any Units
received or sold hereunder for our account.
     
     Notwithstanding any termination of this Agreement, no sales of the
Units shall be made by us at any time except in conformity with the
provisions of Section 22(d) of the 1940 Act.

    11.   Default by Other Underwriters.  Default by any one or more of
the other Underwriters in respect of their several obligations under this
Agreement shall neither release you nor us from any of our respective
obligations hereunder.

    12.   Notices.  Notices hereunder shall by deemed to have been duly
given if mailed or telegraphed to us at our address set forth below, in
the case of notices to us, or to you at your address set forth at the
head of this Agreement, in the case of notices to you.

    13.   Net Capital.  You represent that you, and we represent that we,
are  in  compliance with the capital requirements of Rule 15c-3-1
promulgated by the Commission under the Securities and Exchange Act of
1934, and we may, in accordance with and pursuant to such Rule 15c-3-1,
agree to purchase the amount of Units to be purchased by you and us,
respectively, under the Agreement.

    14.   Miscellaneous.  We confirm that we are a member in good
standing of the National Association of Securities Dealers, Inc.
     
     We confirm that we will take reasonable steps to provide the
Preliminary Prospectus or final Prospectus to any person making written
request therefor to us and to make the Preliminary Prospectus or the
final Prospectus available to each person associated with us expected to
solicit  customers' orders for the Units prior to  the  effective
registration date and the final Prospectus if he is expected to offer the
Units after the effective date.  We understand that you will supply us
upon our request with sufficient copies of such prospectuses to comply
with the foregoing.
     
     This Agreement is being executed by us and delivered to you in
duplicate.  Upon your confirmation hereof and of agreements in identical
form with each of the other Underwriters, this Agreement shall constitute
a valid and binding contract between us.
                                    
                                    Very truly yours,
                                    
                                    
                                    
                                    

Confirmed as of the date set forth     Indicated below our firm
at the name and head of this           address exactly as we wish to appear
Agreement                              in the Prospectus
              
                                   
VAN KAMPEN AMERICAN CAPITAL DISTRIBUTORS, INC.

By____________________________         ____________________________________

Title__________________________        ____________________________________

                                       ____________________________________

                                                        Exhibit 3.1

                           Chapman and Cutler
                         111 West Monroe Street
                        Chicago, Illinois  60603
                                    
                                    
                                    
                                    
                              May 30, 1997
                                    
                                    
                                    
Van Kampen American Capital Distributors, Inc.
One Parkview Plaza
Oakbrook Terrace, Illinois  60181
     
     
     Re:Insured Municipals Income Trust, 217th Insured Multi-Series

Gentlemen:
     
     We   have   served  as  counsel  for  Van  Kampen  American  Capital
Distributors, Inc., as Sponsor and Depositor of Insured Municipals Income
Trust,  217th  Insured  Multi-Series  (hereinafter  referred  to  as  the
"Fund"), in connection with the preparation, execution and delivery of  a
Trust  Agreement  dated May 30, 1997 between Van Kampen American  Capital
Distributors, Inc., as Depositor, American Portfolio Evaluation Services,
a  division of Van Kampen American Capital Investment Advisory Corp.,  as
Evaluator,  and The Bank of New York, as Trustee, pursuant to  which  the
Depositor has delivered to and deposited Bonds listed in the Schedules to
the  Trust  Agreement with the Trustee and pursuant to which the  Trustee
has  issued  to  or  on  the  order of the  Depositor  a  certificate  or
certificates representing Units of fractional undivided interest  in  and
ownership of the several Trusts of said Fund (hereinafter referred to  as
the "Units") created under said Trust Agreement.
     
     In connection therewith, we have examined such pertinent records and
documents  and  matters of law as we have deemed necessary  in  order  to
enable us to express the opinions hereinafter set forth.
     
     Based upon the foregoing, we are of the opinion that:
     
           1.   The execution and delivery of the Trust Agreement and the
     execution and issuance of certificates evidencing the Units  in  the
     several Trusts of the Fund have been duly authorized; and
     
           2.    The  certificates evidencing the Units  in  the  several
     Trusts of the Fund when duly executed and delivered by the Depositor
     and   the  Trustee  in  accordance  with  the  aforementioned  Trust
     Agreement,  will  constitute valid and binding obligations  of  such
     Trusts and the Depositor in accordance with the terms thereof.
     
     We hereby consent to the filing of this opinion as an exhibit to the
Registration  Statement  (File  No.  333-25119)  relating  to  the  Units
referred to above and to the use of our name and to the reference to  our
firm in said Registration Statement and in the related Prospectus.
                                    Respectfully submitted,
                                    
                                    
                                    
                                    Chapman and Cutler

MJK/slm

                                                           Exhibit 3.2

                           Chapman and Cutler
                         111 West Monroe Street
                        Chicago, Illinois  60603
                                    
                                    
                              May 30, 1997
                                    
                                    
                                    
Van Kampen American Capital Distributors, Inc.
One Parkview Plaza
Oakbrook Terrace, Illinois  60181

The Bank of New York
101 Barclay Street
New York, New York 10286
     
     
     Re: Insured Municipals Income Trust, 217th Insured Multi-Series

Gentlemen:
     
     We   have   acted  as  counsel  for  Van  Kampen  American   Capital
Distributors, Inc., Depositor of Insured Municipals Income  Trust,  217th
Insured  Multi-Series (the "Fund"), in connection with  the  issuance  of
Units of fractional undivided interest in the several trusts of said Fund
(the   "Trusts")  under  a  Trust  Agreement  dated  May  30,  1997  (the
"Indenture") between Van Kampen American Capital Distributors,  Inc.,  as
Depositor,  American Portfolio Evaluation Services,  a  division  of  Van
Kampen American Capital Investment Advisory Corp., as Evaluator, and  The
Bank of New York, as Trustee.
     
     In this connection, we have examined the Registration Statement, the
form  of Prospectus proposed to be filed with the Securities and Exchange
Commission, the Indenture and such other instruments and documents as  we
have  deemed  pertinent.  For purposes of the following opinions,  it  is
assumed  that each asset of the Trusts is debt the interest on  which  is
excluded from gross income for federal income tax purposes.
     
       Based upon the foregoing and upon an investigation of such matters
of law as we consider to be applicable, we are of the opinion that, under
existing Federal income tax law:
     
          (i)   Each Trust is not an association taxable as a corporation
     but will be governed by the provisions of subchapter J (relating  to
     trusts) of Chapter 1, Internal Revenue Code of 1986 (the "Code").
     
         (ii)    Each Unitholder will be considered as owning a pro  rata
     share  of each asset of the respective Trust in the proportion  that
     the  number  of Units of such Trust held by him bears to  the  total
     number  of  Units  outstanding  of such  Trust.   Under  subpart  E,
     subchapter J of chapter 1 of the Code, income of each Trust will  be
     treated as income of each Unitholder of the respective Trust in  the
     proportion described, and an item of Trust income will have the same
     character in the hands of a Unitholder as it would have in the hands
     of  the  Trustee.  Accordingly, to the extent that the income  of  a
     Trust  consists  of interest and original issue discount  excludable
     from gross income under Section 103 of the Code, such income will be
     excludable from Federal gross income of the Unitholders,  except  in
     the  case  of  a Unitholder who is a substantial user (or  a  person
     related to such user) of a facility financed through issuance of any
     industrial development bonds or certain private activity bonds  held
     by  the respective Trust.  In the case of such Unitholder who  is  a
     substantial  user (and no other) interest received with  respect  to
     his  Units attributable to such industrial development bonds or such
     private  activity bonds is includable in his gross income.   In  the
     case  of certain corporations, interest on the Bonds is included  in
     computing the alternative minimum tax pursuant to Section  56(c)  of
     the  Code,  the environmental tax (the "Superfund Tax")  imposed  by
     Section  59A  of  the Code, and the branch profits  tax  imposed  by
     Section  884  of the Code with respect to U.S. branches  of  foreign
     corporations.  Under current Code provisions, the Superfund Tax does
     not  apply  to  tax  years beginning on or after  January  1,  1996.
     Legislative proposals have been made that would extend the Superfund
     Tax.
     
        (iii)    Gain  or  loss will be recognized to a  Unitholder  upon
     redemption  or sale of his Units.  Such gain or loss is measured  by
     comparing the proceeds of such redemption or sale with the  adjusted
     basis  of  the Units represented by his Certificate.  If a  Bond  is
     acquired  with accrued interest, that portion of the price paid  for
     the  accrued interest is added to the tax basis of the  Bond.   When
     this  accrued  interest is received, it is treated as  a  return  of
     capital  and  reduces  the tax basis of the  Bond.   If  a  Bond  is
     purchased for a premium, the amount of the premium is added  to  the
     tax basis of the Bond.  Bond premium is amortized over the remaining
     term of the Bond, and the tax basis of the Bond is reduced each  tax
     year  by  the  amount of the premium amortized  in  that  tax  year.
     Accordingly,  Unitholders must reduce the tax basis of  their  Units
     for  their  share  of accrued interest received  by  the  respective
     Trust,  if  any,  on Bonds delivered after the Unitholders  pay  for
     their  Units to the extent that such interest accrued on such  Bonds
     before  the date the Trust acquired ownership of the Bonds (and  the
     amount  of this reduction may exceed the amount of accrued  interest
     paid to the seller) and, consequently, such Unitholders may have  an
     increase  in  taxable  gain or reduction in capital  loss  upon  the
     disposition  of  such  Units.   In  addition,  such  basis  will  be
     increased by the Unitholder's aliquot share of the accrued  original
     issue  discount  (and market discount, if the Unitholder  elects  to
     include  market  discount in income as it accrues) with  respect  to
     each Bond held by the Trust with respect to which there was original
     issue  discount  at  the  time the Bond was  issued  (or  which  was
     purchased   with  market  discount)  and  reduced  by   the   annual
     amortization of bond premium, if any, on Bonds held by the Trust.
     
        (iv)   If the Trustee disposes of a Trust asset (whether by sale,
     payment  on  maturity,  redemption or otherwise)  gain  or  loss  is
     recognized  to the Unitholder and the amount thereof is measured  by
     comparing the Unitholder's aliquot share of the total proceeds  from
     the  transaction with his basis for his fractional interest  in  the
     asset  disposed  of.  Such basis is ascertained by apportioning  the
     tax  basis for his Units among each of the Trust assets (as  of  the
     date  on  which his Units were acquired) ratably according to  their
     values  as  of  the  valuation date nearest the  date  on  which  he
     purchased such Units.  A Unitholder's basis in his Units and of  his
     fractional  interest  in each Trust asset must  be  reduced  by  the
     amount  of  his  aliquot share of accrued interest received  by  the
     Trust,  if  any,  on Bonds delivered after the Unitholders  pay  for
     their  Units to the extent that such interest accrued on  the  Bonds
     before  the date the Trust acquired ownership of the Bonds (and  the
     amount  of this reduction may exceed the amount of accrued  interest
     paid  to the seller), must be reduced by the annual amortization  of
     bond  premium,  if  any,  on Bonds held by the  Trust  and  must  be
     increased  by  the Unitholder's share of the accrued original  issue
     discount  (and market discount, if the Unitholder elects to  include
     market  discount in income as it accrues) with respect to each  Bond
     which,  at the time the Bond was issued, had original issue discount
     (or which was purchased with market discount).
     
          (v)    In  the  case of any Bond held by the  Trust  where  the
     "stated  redemption  price at maturity" exceeds the  "issue  price",
     such  excess shall be original issue discount.  With respect to each
     Unitholder,  upon  the  purchase of  his  Units  subsequent  to  the
     original issuance of Bonds held by the Trust, Section 1272(a)(7)  of
     the Code provides for a reduction in the accrued "daily portion"  of
     such  original issue discount upon the purchase of a Bond subsequent
     to  the Bond's original issue, under certain circumstances.  In  the
     case  of  any  Bond  held  by the Trust the  interest  on  which  is
     excludable  from  gross income under Section 103 of  the  Code,  any
     original issue discount which accrues with respect thereto  will  be
     treated  as  interest which is excludable from  gross  income  under
     Section 103 of the Code.
     
         (vi)   We have examined the Municipal Bond Unit Investment Trust
     Insurance Policies, if any, issued to certain of the Trusts  on  the
     Date  of  Deposit by AMBAC Indemnity Corporation, Financial Guaranty
     Insurance  Corporation or a combination thereof.  Each such  policy,
     or  a  combination of such policies, insures all bonds held  by  the
     Trustee  for  that particular Trust (other than bonds  described  in
     paragraph  (vii)) against default in the prompt payment of principal
     and  interest.   In  our opinion, any amount paid  under  each  said
     policy, or a combination of said policies, which represents 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 normal course
     by the issuer of the defaulted Bonds provided that, at the time such
     policies  are  purchased, the amounts paid  for  such  policies  are
     reasonable, customary and consistent with the reasonable expectation
     that the issuer of the Bonds, rather than the insurer, will pay debt
     service on the Bonds.  Paragraph (ii) of this opinion is accordingly
     applicable to insurance proceeds representing maturing interest.
     
        (vii)    Certain Bonds in the portfolios of certain of the Trusts
     have  been  insured by the issuers thereof against  default  in  the
     prompt  payment  of  principal and interest (the  "Insured  Bonds").
     Insurance has been obtained for such Insured Bonds, or, in the  case
     of  a  commitment,  the Bonds will be ultimately insured  under  the
     terms  of  such an insurance policy, which are designated as  issuer
     Insured Bonds on the portfolio pages of the respective Trusts in the
     Prospectus  for  the  Fund, by the issuer  of  such  Insured  Bonds.
     Insurance  on  Insured Bonds is effective so long  as  such  Insured
     Bonds remain outstanding.  For each of these Insured Bonds, we  have
     been  advised  that the aggregate principal amount of  such  Insured
     Bonds  listed  on  the portfolio page for the respective  Trust  was
     acquired by the applicable Trust and are part of the series of  such
     Insured Bonds listed in the aggregate principal amount.  Based  upon
     the  assumption that the Insured Bonds of the Trust are part of  the
     series  covered  by  an  insurance policy  or,  in  the  case  of  a
     commitment, will be ultimately insured under the terms  of  such  an
     insurance policy, it is our opinion that any amounts received by the
     applicable  Trust  representing maturing interest  on  such  Insured
     Bonds  will be excludable from Federal gross income if, and  to  the
     same  extent as, such interest would have been so excludable if paid
     in  normal  course  by the issuer provided that, at  the  time  such
     policies  are  purchased, the amounts paid  for  such  policies  are
     reasonable, customary and consistent with the reasonable expectation
     that  the issuer of the Insured Bonds, rather than the insurer, will
     pay  debt  service  on the Insured Bonds.  Paragraph  (ii)  of  this
     opinion is accordingly applicable to such payment.
     
     Sections  1288 and 1272 of 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 Bond, depending on
the  date the Bond was issued.  In addition, special rules apply  if  the
purchase price of a 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 Bonds on the  date  a
Unitholder acquires his Units, and the price the Unitholder pays for  his
Units.
     
     Because  the  Trusts  do  not include any "private  activity"  bonds
within  the  meaning  of  Section 141 of the  Code  issued  on  or  after
August 8, 1986, none of the Trust Funds' interest income shall be treated
as  an item of tax preference when computing the alternative minimum tax.
In   the  case  of  corporations,  for  taxable  years  beginning   after
December  31,  1986, the alternative minimum tax and  the  Superfund  Tax
depend upon the corporation's alternative minimum taxable income ("AMTI")
which is the corporation's taxable income with certain adjustments.
     
     Pursuant  to Section 56(c) of the Code, one of the adjustment  items
used in computing AMTI and the Superfund Tax of a corporation (other than
an  S  Corporation, Regulated Investment Company, Real Estate  Investment
Trust  or  REMIC) for taxable years beginning after 1989,  is  an  amount
equal  to  75%  of  the  excess of such corporation's  "adjusted  current
earnings"  over an amount equal to its AMTI (before such adjustment  item
and the alternative tax net operating loss deduction).  "Adjusted current
earnings"  includes all tax-exempt interest, including  interest  on  all
Bonds  in  the  Trust,  and tax-exempt original  issue  discount.   Under
current  Code provisions, the Superfund Tax does not apply to  tax  years
beginning  on or after January 1, 1996.  Legislative proposals have  been
made that would extend the Superfund Tax.
     
     Effective  for  tax  returns  filed after  December  31,  1987,  all
taxpayers  are required to disclose to the Internal Revenue  Service  the
amount of tax-exempt interest earned during the year.
     
     Section  265  of the Code provides for a reduction in  each  taxable
year  of 100 percent of the otherwise deductible interest on indebtedness
incurred  or  continued  by  financial  institutions,  to  which   either
Section  585  or  Section 593 of the Code applies, to purchase  or  carry
obligations  acquired  after August 7, 1986, the  interest  on  which  is
exempt  from  Federal income taxes for such taxable  year.   Under  rules
prescribed by Section 265, the amount of interest otherwise deductible by
such  financial institutions in any taxable year which is  deemed  to  be
attributable  to  tax-exempt obligations acquired after August  7,  1986,
will  generally be the amount that bears the same ratio to  the  interest
deduction otherwise allowable (determined without regard to Section  265)
to  the  taxpayer for the taxable year as the taxpayer's average adjusted
basis  (within  the  meaning of Section 1016) of  tax-exempt  obligations
acquired  after August 7, 1986, bears to such average adjusted basis  for
all  assets  of the taxpayer.  The U.S. Treasury Department has  proposed
extending the financial institution rules to all corporations.
     
     We  also call attention to the fact that, under Section 265  of  the
Code, interest on indebtedness incurred or continued to purchase or carry
Units  is  not deductible for Federal income tax purposes.   Under  rules
used  by the Internal Revenue Service for determining when borrowed funds
are  considered used for the purpose of purchasing or carrying particular
assets,  the purchase of Units may be considered to have been  made  with
borrowed  funds even though the borrowed funds are not directly traceable
to the purchase of Units.  However, these rules generally do not apply to
interest  paid  on indebtedness incurred for expenditures of  a  personal
nature  such  as  a mortgage incurred to purchase or improve  a  personal
residence.
     
     "The  Revenue  Reconciliation Act of 1993" (the "Tax Act")  subjects
tax-exempt  bonds to the market discount rules of the Code effective  for
bonds purchased after April 30, 1993.  In general, market discount is the
amount  (if any) by which the stated redemption price at maturity exceeds
an  investor's purchase price (except to the extent that such difference,
if  any,  is  attributable to original issue discount  not  yet  accrued)
subject to a statutory de minimis rule.  Market discount can arise  based
on  the  price a Trust pays for Bonds or the price a Unitholder pays  for
his  or  her  Units.  Under the Tax Act, accretion of market discount  is
taxable  as  ordinary  income; under prior law, the  accretion  had  been
treated  as  capital gain.  Market discount that accretes while  a  Trust
holds  a  Bond would be recognized as ordinary income by the  Unitholders
when  principal  payments  are received on the  Bond,  upon  sale  or  at
redemption  (including early redemption), or upon the sale or  redemption
of  his  or  her  Units,  unless a Unitholder elects  to  include  market
discount in taxable income as it accrues.

                                      Very truly yours,


                                      Chapman and Cutler
MJK/slm

                                                              Exhibit 3.3

                               Kroll & Tract LLP
                              520 Madison Avenue
                        New York, New York  10022-4235
                                       
                                 May 30, 1997
                                       
                                       
                                       
Insured Municipals Income Trust,
  217th Insured Multi-Series
c/o The Bank of New York,
  As Trustee
101 Barclay Street, 17 West
New York, New York 10286

Dear Sirs:
     
     We have acted as special counsel for the Insured Municipals Income Trust,
217th  Insured  Multi-Series  (the "Fund") consisting  of  Insured  Municipals
Income  Trust,  Series 389, U.S. Territorial Insured Municipals Income  Trust,
Series  1,  Michigan  Insured Municipals Income Trust,  Series  145  and  Ohio
Insured Municipals Income Trust, Series 107 (individually the "Trusts" and  in
the  aggregate "Trusts") for the purposes of determining the applicability  of
certain New York taxes under the circumstances hereinafter described.
     
     The  Fund  is  created pursuant to a Trust Agreement  (the  "Indenture"),
dated  as  of today (the "Date of Deposit") among Van Kampen American  Capital
Distributors, Inc. (the "Depositor"), American Portfolio Evaluation  Services,
a  division  of  Van  Kampen American Capital Investment  Advisory  Corp.,  as
Evaluator, and The Bank of New York as Trustee (the "Trustee").  As  described
in the prospectus relating to the Fund dated today to be filed as an amendment
to  a registration statement previously filed with the Securities and Exchange
Commission  (File No. 333-25119) under the Securities Act of 1933, as  amended
(the  "Prospectus"  and the "Registration Statement"), the objectives  of  the
Fund  are the generation of income exempt from Federal taxation and as regards
the  Trusts denominated with a state name exempt from income tax, if  any,  of
the State denominated in the name of that Trust to the extent indicated in the
Prospectus.   No  opinion is expressed herein with regard to  the  Federal  or
State  (other than New York) tax aspects of the bonds, the Fund,  the  Trusts,
units of each Trust (the "Units"), or any interest, gains or losses in respect
thereof.
     
     As  more  fully  set  forth in the Indenture and in the  Prospectus,  the
activities of the Trustee will include the following:
     
     On  the Date of Deposit, the Depositor will deposit with the Trustee with
respect  to  each  Trust,  the  total principal  amount  of  interest  bearing
obligations  and/or  contracts  for  the purchase  thereof  together  with  an
irrevocable letter of credit in the amount required for the purchase price and
accrued  interest,  if any, along with an insurance policy  purchased  by  the
Depositor  evidencing  the  insurance  guaranteeing  the  timely  payment   of
principal and interest of some of the obligations comprising the corpus of the
Trusts  other  than  those  obligations the timely payment  of  principal  and
interest  of  which  are guaranteed by an insurance policy  purchased  by  the
issuer thereof or a prior owner, which may include the Depositor prior to  the
Date  of  Deposit,  all  as more fully set forth in  the  Prospectus  and  the
Registration Statement with respect to each Trust.
     
     We  understand  that  with respect to the obligations  described  in  the
preceding  paragraph  all  insurance  policies,  whether  purchased   by   the
Depositor,  the  issuer or a prior owner, provide, or will provide,  that  the
amount paid by the insurer in respect of any bond may not exceed the amount of
principal  and  interest due on the bond and such payment  will  in  no  event
relieve  the  issuer  from its continuing obligation  to  pay  such  defaulted
principal and interest in accordance with the terms of the obligation.
     
     The  Trustee will not participate in the selection of the obligations  to
be  deposited in the Fund, and, upon the receipt thereof, will deliver to  the
Depositor  a  registered certificate for the number of Units representing  the
entire corpus of each Trust as more fully set forth in the Prospectus and  the
Registration Statement.  The Units, which are represented by certificates (the
"Certificates"),  will  be offered to the public by the  Prospectus  upon  the
effectiveness of the Registration Statement.
     
     The  duties of the Trustee, which are ministerial in nature, will consist
primarily of crediting the appropriate accounts with interest received by each
Trust  and with the proceeds from the disposition of obligations held in  each
Trust  and the distribution of such interest and proceeds to the Unit  holders
of  that  Trust.   The Trustee will also maintain records  of  the  registered
holders  of Certificates representing an interest in each Trust and administer
the  redemption  of Units by such Certificate holders and may perform  certain
administrative functions with respect to an automatic investment option.
     
     Generally, obligations held in the Fund may be removed therefrom  by  the
Trustee  only upon redemption prior to their stated maturity, at the direction
of  the  Depositor in the event of an advance refunding or upon the occurrence
of  certain other specified events which adversely affect the sound investment
character of the Fund, such as default by the issuer in payment of interest or
principal  on  the  obligation and no provision for payment is  made  therefor
either  pursuant  to the portfolio insurance or otherwise  and  the  Depositor
fails to instruct the Trustee, within thirty (30) days after notification,  to
hold such obligation.
     
     Prior  to  the termination of the Fund, the Trustee is not empowered  to,
and  we  assume  will  not, sell Bonds, except from a list  furnished  by  the
Depositor and only for the purposes of redeeming Units tendered to it  and  of
paying expenses for which funds are not available.  The Trustee does not  have
the power to vary the investment of any Unit holder in the Fund, and under  no
circumstances may the proceeds of sale of any obligations held by the Fund  be
used to purchase new obligations to be held therein.
     
     Article  9-A of the New York Tax Law imposes a franchise tax on  business
corporations,  and, for purposes of that Article, Section 208(1)  defines  the
term "corporation" to include, among other things, "any business conducted  by
a   trustee  or  trustees  wherein  interest  or  ownership  is  evidenced  by
certificate or other written instrument."
     
     The Regulations promulgated under Section 208 provide as follows:
          
          A  business  conducted by a trustee or trustees  in  which
          interest or ownership is evidenced by certificate or other
          written  instrument includes, but is not  limited  to,  an
          association commonly referred to as a "business trust"  or
          "Massachusetts trust".  In determining whether  a  trustee
          or  trustees  are conducting a business, the form  of  the
          agreement is of significance but is not controlling.   The
          actual  activities of the trustee or trustees,  not  their
          purposes and powers, will be regarded as decisive  factors
          in  determining whether a trust is subject  to  tax  under
          Article  9-A.   The  mere  investment  of  funds  and  the
          collection    of   income   therefrom,   with   incidental
          replacement of securities and reinvestment of funds,  does
          not constitute the conduct of a business in the case of  a
          business conducted by a trustee or trustees.  20 NYCRR  1-
          2.5(b)(2) (July 11, 1990).
     
     New  York  cases  dealing with the question of whether a  trust  will  be
subject to the franchise tax have also delineated the general rule that  where
a  trustee  merely  invests  funds and collects  and  distributes  the  income
therefrom,  the  trust is not engaged in business and is not  subject  to  the
franchise  tax.   Burrell v. Lynch, 274 A.D. 347, 84 N.Y.S.2d 171  (3rd  Dept.
1948), order resettled, 274 A.D. 1083, 85 N.Y.S.2d 705 (3rd Dept. 1949).
     
     In  an opinion of the Attorney General of the State of New York, 47  N.Y.
Att'y. Gen. Rep. 213 (Nov. 24, 1942), it was held that where the trustee of an
unincorporated  investment  trust was without authority  to  reinvest  amounts
received  upon the sales of securities and could dispose of securities  making
up  the  trust  only  upon the happening of certain specified  events  or  the
existence  of certain specified conditions, the trust was not subject  to  the
franchise tax.
     
     In  the instant situation, the Trustee is not empowered to, and we assume
will  not,  sell obligations contained in the corpus of the Fund and  reinvest
the  proceeds  therefrom.   Further, the power to  sell  such  obligations  is
limited  to  circumstances in which the creditworthiness or soundness  of  the
obligation  is  in question or in which cash is needed to pay  redeeming  Unit
holders  or to pay expenses, or where the Fund is liquidated pursuant  to  the
termination of the Indenture.  Only in circumstances in which the issuer of an
obligation attempts to refinance it can the Trustee exchange an obligation for
a  new security.  In substance, the Trustee will merely collect and distribute
income  and will not reinvest any income or proceeds, and the Trustee  has  no
power to vary the investment of any Unit holder in the Fund.
     
     Under  Subpart  E  of Part I, Subchapter J of Chapter 1 of  the  Internal
Revenue Code of 1986, as amended (the "Code"), the grantor of a trust will  be
deemed to be the owner of the trust under certain circumstances, and therefore
taxable  on  his  proportionate interest in the income  thereof.   Where  this
Federal  tax rule applies, the income attributed to the grantor will  also  be
income  to  him  for  New  York income tax purposes.   (See  TSB-M-78(9)  (C),
New York Department of Taxation and Finance, June 23, 1978).
     
     By  letter,  dated  today, Messrs. Chapman and Cutler,  counsel  for  the
Depositor,  rendered their opinion that each Unit holder of a  Trust  will  be
considered  as  owning a share of each asset of that Trust in  the  proportion
that  the  number  of Units held by such holder bears to the total  number  of
Units  outstanding and the income of a Trust will be treated as the income  of
each  Unit  holder of that Trust in said proportion pursuant to Subpart  E  of
Part I, Subchapter J of Chapter 1 of the Code.
     
     Based  on the foregoing and on the opinion of Messrs. Chapman and Cutler,
counsel  for the Depositor, dated today, upon which we specifically  rely,  we
are  of  the  opinion that under existing laws, rulings, and  court  decisions
interpreting the laws of the State and City of New York:

      1.    Each  Trust  will  not  constitute an  association  taxable  as  a
corporation under New York law, and, accordingly, will not be subject  to  tax
on  its  income  under the New York State franchise tax or the New  York  City
general corporation tax.

      2.    The income of each Trust will be treated as the income of the Unit
holders under the income tax laws of the State and City of New York.

      3.   Unit holders who are not residents of the State of New York are not
subject  to  the income tax law thereof with respect to any interest  or  gain
derived  from the Fund or any gain from the sale or other disposition  of  the
Units,  except  to  the  extent that such interest or gain  is  from  property
employed  in  a business, trade, profession or occupation carried  on  in  the
State of New York.
     
     In  addition, we are of the opinion no New York State stock transfer  tax
will  be  payable in respect of any transfer of the Certificates by reason  of
the  exemption contained in paragraph (a) of Subdivision 8 of Section  270  of
the New York Tax Law.
     
     We  hereby  consent to the filing of this opinion as an  exhibit  to  the
Registration  Statement relating to the Units and to the use of our  name  and
the reference to our firm in the Registration Statement and in the Prospectus.
                                    
                                    Very truly yours,
                                    
                                    
                                    Kroll & Tract LLP
MNS:hbm

                                                             Exhibit 3.4


               Miller, Canfield, Paddock and Stone, P.L.C.
                  1400 North Woodward Avenue, Suite 100
                    Bloomfield Hills, Michigan  48304
                                    
                                    
                                    
                              May 30, 1997
                                    
                                    
                                    
Insured Municipals Income Trust,
  217th Insured Multi-Series
In care of
Van Kampen American Capital Distributors, Inc.
One Parkview Plaza
Oakbrook Terrace, Illinois  60181

The Bank of New York through
its Wall Street Trust division
  as Trustee of Insured Municipals
  Income Trust, 217th Insured
Multi-Series
101 Barclay Street
New York, New York  10286
     
     
     Re:           Insured Municipals Income Trust,
                       217th Insured Multi-Series
         (Michigan Insured Municipals Income Trust, Series 145)

Gentlemen:
     
     We  have  acted as special Michigan counsel to you as  sponsors  and
trustees  of  Insured Municipals Income Trust, 217th Insured Multi-Series
(Michigan Insured Municipals Income Trust, Series 145) referred to  above
(the "Fund").  You have asked that we, acting in such capacity, render an
opinion  to you with respect to certain matters relating to the  issuance
of  the  units of fractional undivided interest in the Fund (the "Units")
pursuant  to  a  Registration  Statement  on  Form  S-6  filed  with  the
Securities   and  Exchange  Commission  (the  "Commission")   under   the
Securities Act of 1933, as amended (the "Registration Statement").
     
     You  have  requested  our  opinion as to the  applicability  to  the
Michigan Insured Municipals Income Trust (the "Michigan Trust")  and  the
holders  of  Units  (the "Holders"), each of which Units  represents  the
ownership  of a specified fractional undivided interest in the assets  of
the  Michigan  Trust, of the Michigan Income Tax Act  (M.C.L.A.  Sections
206.1 et seq.; M.S.A. Sections 7.557 (101) et seq.) (the "Michigan Income
Tax"), the City Income Tax Act (M.C.L.A. Sections 141.501 et seq.; M.S.A.
Sections 5.3194 (1) et seq.), which incorporates the "Uniform City Income
Tax  Ordinance," the First Class School District excise tax  upon  income
(M.C.L.A.  Section 380.451; M.S.A. S15.4451) (collectively,  the  "income
tax laws"), the Michigan Single Business Tax Act (M.C.L.A. Sections 208.1
et  seq.; M.S.A. Sections 7.558 (1) et seq.) (the "Single Business  Tax")
and  the  Michigan  Tax  on  Ownership of  Intangible  Personal  Property
(M.C.L.A.  Sections 205.131 et seq.; M.S.A. Sections 7.556 (1)  et  seq.)
(the  "Intangibles Tax").  The Intangibles Tax is being phased out,  with
reductions  of twenty-five percent (25%) in 1994 and 1995, fifty  percent
(50%)  in 1996, and seventy-five percent (75%) in 1997, with total repeal
effective January 1, 1998 (1995 PA 4 and 5).  You have also requested our
opinion  regarding the tax status of proceeds payable from  an  insurance
policy  to  be obtained by either the Fund or by the issuer of the  Bonds
involved,  guaranteeing prompt payment of principal and interest  on  all
Bonds in the portfolio of the Fund.
     
     The Michigan Trust, its formation, its proposed method of operation,
the  rights of owners of Certificates representing Units, the  nature  of
such ownership and the portfolio of investments of the Michigan Trust are
described and set forth in the Prospectus dated May 30, 1997, filed  with
the Securities and Exchange commission in Registration No. 333-25119.  In
giving  our  opinion set forth hereunder, we have relied upon  the  facts
contained in such Registration Statement, including the fact that, at the
respective dates of issuance of the underlying Debt Obligations, opinions
of  bond counsel to the respective Michigan authorities issuing such Debt
Obligations  were  given  with  respect  to  the  validity  of  the  Debt
Obligations  and the exemption of the same, and of the interest  thereon,
from Michigan taxation.
     
     Based on the above, it is our opinion that:
     
     The Michigan Trust and the owners of Units will, in our opinion,  be
treated  for  purposes of the Michigan income tax  laws  and  the  Single
Business Tax in substantially the same manner as they are for purposes of
the  Federal income tax laws, as currently enacted.  Accordingly, we have
relied  upon  the  opinion  of  Messrs. Chapman  and  Cutler  as  to  the
applicability  of Federal income tax under the Internal Revenue  Code  of
1986,  as  currently amended, to the Michigan Trust and  the  Holders  of
Units.
     
     Under  the  income tax laws of the State of Michigan,  the  Michigan
Trust  is not an association taxable as a corporation; the income of  the
Michigan  Trust will be treated as the income of the Holders of Units  of
the  Michigan  Trust  and be deemed to have been received  by  them  when
received by the Michigan Trust.  Interest on the Debt Obligations in  the
Michigan  Trust  which is exempt from tax under the Michigan  income  tax
laws  when received by the Michigan Trust will retain its status  as  tax
exempt interest to the Holders of Units of the Michigan Trust.
     
     For  purposes of the Michigan income tax laws, each Holder of  Units
of  the  Michigan Trust will be considered to have received his pro  rata
share  of interest on each Debt Obligation in the Michigan Trust when  it
is  received by the Michigan Trust, and each Holder will have  a  taxable
event  when the Michigan Trust disposes of a Debt Obligation (whether  by
sale,  exchange,  redemption or payment at maturity)  or  when  the  Unit
Holder  redeems  or  sells  his  Unit,  to  the  extent  the  transaction
constitutes  a  taxable event for Federal income tax purposes.   The  tax
cost of each Unit to a Unit Holder will be established and allocated  for
purposes of the Michigan income tax laws in the same manner as such  cost
is established and allocated for Federal income tax purposes.
     
     Under  the  Michigan  Intangibles Tax, the  Michigan  Trust  is  not
taxable and the pro rata ownership of the underlying Debt Obligations, as
well  as the interest thereon, will be exempt to the Holders of Units  to
the  extent  the Michigan Trust consists of obligations of the  State  of
Michigan  or  its  political  subdivisions  or  municipalities,   or   of
obligations of possessions of the United States.
     
     The  Michigan Single Business Tax replaced the tax on corporate  and
financial  institution  income under the Michigan  Income  Tax,  and  the
intangible  tax with respect to those intangibles of persons  subject  to
the  Single  Business Tax the income from which would  be  considered  in
computing  the  Single Business Tax.  Persons are subject to  the  Single
Business Tax only if they are  engaged in "business activity," as defined
in the Act.  Under the Single Business Tax, both interest received by the
Michigan  Trust  on  the  underlying  Debt  Obligations  and  any  amount
distributed from the Michigan Trust to a Unit Holder, if not included  in
determining taxable income for Federal income tax purposes, is  also  not
included in the adjusted tax base upon which the Single Business  Tax  is
computed,  of  either  the Michigan Trust or the Unit  Holders.   If  the
Michigan  Trust  or  the Unit Holders have a taxable  event  for  Federal
income tax purposes when the Michigan Trust disposes of a Debt Obligation
(whether  by  sale, exchange, redemption or payment at maturity)  or  the
Holder  redeems or sells his Unit, an amount equal to any  gain  realized
from  such taxable event which was included in the computation of taxable
income  for  Federal  income tax purposes (plus an amount  equal  to  any
capital gain of an individual realized in connection with such event  but
excluded in computing that individual's Federal taxable income)  will  be
included  in  the tax base against which, after allocation, apportionment
and other adjustments, the Single Business Tax is computed.  The tax base
will be reduced by an amount equal to any capital loss realized from such
a  taxable  event,  whether  or  not the capital  loss  was  deducted  in
computing Federal taxable income in the year the loss occurred.   Holders
should consult their tax advisor as to their status under Michigan law.
     
     Any proceeds paid under an insurance policy issued to the Trustee of
the Fund, or paid under individual policies obtained by issuers of Bonds,
which, when received by the Unit Holders, represent maturing interest  on
defaulted  obligations held by the Trustee, will be excludable  from  the
Michigan income tax laws and the Single Business Tax if, and to the  same
extent  as,  such interest would have been so excludable if paid  by  the
issuer  of the defaulted obligations.  While treatment under the Michigan
Intangibles  Tax  is  not  premised upon  the  characterization  of  such
proceeds  under  the  Internal Revenue Code, the Michigan  Department  of
Treasury should adopt the same approach as under the Michigan income  tax
laws and the Single Business tax.
     
     Chapman  and  Cutler  of 111 West Monroe Street,  Chicago,  Illinois
60603,  are entitled to rely on this opinion as though it were  addressed
to them.
     
     We  also  advise you that, as the Tax Reform Act of 1986  eliminates
the  capital  gain deduction for tax years beginning after  December  31,
1986,  the  federal adjusted gross income, the computation base  for  the
Michigan  Income Tax, of a Unit Holder will be increased  accordingly  to
the  extent  such  capital  gains are realized when  the  Michigan  Trust
disposes of a Debt Obligation or when the Unit Holder redeems or sells  a
Unit,  to  the  extent such transaction constitutes a taxable  event  for
Federal income tax purposes.
     
     We  hereby consent to the reference to Miller, Canfield, Paddock and
Stone  under the heading "Michigan Tax Status" in the Prospectus relating
to  the  Michigan  Trust which is part of the Registration  Statement  in
Registration  No.  333-25119  filed  with  the  Securities  and  Exchange
Commission  under  the Securities Act of 1933, as  amended,  and  to  the
filing of this opinion as an exhibit to said registration statement.

                               Yours very truly,
                               
                               Miller, Canfield, Paddock And Stone,
                                    P.L.C.


                                                           Exhibit 3.5
 
                       Squire, Sanders & Dempsey
                           4900 Society Center
                            127 Public Square
                        Cleveland, OH  44114-1304
                                    
                              May 30, 1997
                                    
                                    
                                    
Van Kampen American Capital Distributors, Inc.
One Parkview Plaza
Oakbrook Terrace, Illinois  60181

     
     
     Re:   Insured Municipals Income Trust, Multi-Series 217
           (Ohio Insured Municipals Income Trust, Series 107)
                                    
Gentlemen:
     
     You  have  requested our opinion as to the Ohio tax aspects  of  the
Ohio  Insured Municipals Income Trust, Series 107, which is part  of  the
Insured  Municipals  Income Trust, Multi-Series  217  (the  "Fund").   We
understand  that  the  Fund is organized under the  Trust  Indenture  and
Agreement,  dated  the date hereof, between Van Kampen  American  Capital
Distributors,  Inc., as Depositor, and The Bank of New York  through  its
Wall  Street Trust division, as Trustee.  We further understand that  (i)
the  Fund  will issue Units of fractional undivided interests in  several
state  trusts, one of which is the Ohio Trust ("Trust"), (ii)  the  Units
will be purchased by various investors ("Certificateholders"), (iii) each
Unit  of  the  Trust represents a fractional undivided  interest  in  the
principal  and net income of the Trust and represents $1,000 of principal
amount of the obligations initially acquired by the Trust, and (iv)  each
state  trust  will  be  administered as a distinct entity  with  separate
certificates, investments, expenses, books and records.
     
     In addition, we understand that (i) the Trust is comprised primarily
of  interest-bearing obligations issued by or on behalf of the  State  of
Ohio,  political  subdivisions thereof, or agencies or  instrumentalities
thereof  ("Ohio Obligations"), or by the governments of Puerto Rico,  the
Virgin Islands or Guam ("Territorial Obligations"), (ii) at all times  at
least  fifty percent of the value of the total assets of the  Trust  will
consist  of Ohio Obligations, or similar obligations of other  states  or
their   subdivisions  (but  not  including  the  value   of   Territorial
Obligations  in  the  numerator for purposes  of  satisfying  this  fifty
percent  requirement), (iii) insurance guaranteeing the  payment  of  all
principal  and inter on the Ohio Obligations and Territorial  Obligations
held  by the Trust has been obtained by either the Sponsor or the  Issuer
or  underwriter of the respective obligations, and (iv) distributions  of
interest  received  by  the  Trust  will  be  mademonthly.   We   further
understand  that, based on the opinion of bond counsel  with  respect  to
each issue, of Ohio Obligations held or to be held by the Trust, rendered
on  the date of issuance thereof, interest on each such issue is excluded
from gross income for federal income tax purposes under Section 103(a) of
the  Internal  Revenue Code of 1986, as amended (the  "Code"),  or  other
provisions  of  federal law, provided that with respect to  certain  Ohio
Obligations  and  Territorial  Obligations, certain  representations  are
accurate and covenants are satisfied.
     
     We  understand that Chapman and Cutler has rendered an opinion  that
for  federal  income tax purposes the Trust will not  be  taxable  as  an
association  but  will  be  governed by the provisions  of  subchapter  J
(relating  to  trusts)  of Chapter 1 of the Code; each  Certificateholder
will  be  considered the owner of a pro rata portion of the  Trust  under
Section  676(a)  of  the Code; the Trust itself will not  be  subject  to
federal  income  tax; each Certificateholder will be considered  to  have
received  his pro rata share of interest on the underlying bonds  in  the
Trust  when it is received by the Trust; and each Certificateholder  will
have  a taxable event when the Trust disposes of an underlying obligation
(whether by sale, exchange, redemption, or payment at maturity)  or  when
the Certificateholder redeems or sells his Units.
     
     Based  on  the  foregoing  and upon an  examination  of  such  other
documents  and an investigation of such other matters of law as  we  have
deemed necessary, we are of the opinion that under existing Ohio law:
     
          1.   The Trust is not taxable as a corporation or otherwise for
     purposes  of  the  Ohio  personal income tax, Ohio  school  district
     income  taxes,  the  Ohio corporation franchise  tax,  or  the  Ohio
     dealers in intangibles tax.
     
            2.    Distributions  with  respect  to  Units  of  the  Trust
     ("distributions")   will  be  treated   as   the   income   of   the
     Certificateholders for purposes of the Ohio personal income tax, and
     school  district and municipal income taxes in Ohio,  and  the  Ohio
     corporation  franchise tax in proportion to the respective  interest
     therein of each Certificateholder.
     
           3.    Distributions properly attributable to interest on  Ohio
     Obligations and Territorial Obligations held by the Trust are exempt
     from the Ohio personal income tax, and school district and municipal
     income  taxes in Ohio, and are excluded from the net income base  of
     the  Ohio  corporation  franchise tax  when  distributed  or  deemed
     distributed to Certificateholders.
     
            4.    Distributions  properly  attributable  to  proceeds  of
     insurance  paid  to  the Trust that represent  maturing  or  matured
     interest  on  defaulted obligations held by the Trust and  that  are
     excluded from gross income for federal income tax purposes  will  be
     exempt  from  Ohio  personal income tax,  and  school  district  and
     municipal  income taxes in Ohio, and will be excluded from  the  net
     income base of the Ohio corporation franchise tax.
     
           5.    Distributions  of profit made on the sale,  exchange  or
     other   disposition  by  the  Ohio  Trust(s)  of  Ohio  Obligations,
     including  Distributions of "capital gain dividends" as  defined  in
     Section 852(b)(3)(C) of the Code, properly attributable to the sale,
     exchange  of  other disposition of Ohio Obligations are exempt  from
     Ohio  personal income tax, and school district and municipal  income
     taxes in Ohio, and are excluded from the net income base of the Ohio
     corporation franchise tax.
     
     We  have not examined any of the obligations to be deposited in  the
Trust  and  express  no opinion as to whether such obligations,  interest
thereon, or gain from the sale or other disposition thereof would in fact
be  exempt from any federal or Ohio taxes if such obligations were  held,
or   such   interest   or   gain   were   received,   directly   by   the
Certificateholders.
     
     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement (No. 333-25119) relating to the Units referred  to
above,  and  to the reference to our firm as special Ohio tax counsel  in
said Registration Statement and in the Prospectus contained therein.

                                    Respectfully submitted,
                                    
                                    Squire, Sanders & Dempsey

                                                              Exhibit 4.1

Interactive Data
14 West Street
New York, NY  10005


May 30, 1997


Van Kampen American Capital Distributors, Inc.
One Parkview Plaza
Oakbrook Terrace, IL 60181
     
     
     Re: Insured Municipals Income Trust, 217th Insured Multi-Series
     (A Unit Investment Trust) Registered Under the Securities Act of
     1933
                                            File No. 333-25119
     

Gentlemen:
     
     We  have  examined the Registration Statement for the above  captioned
Fund.
     
     We  hereby consent to the reference in the Prospectus and Registration
Statement for the above captioned Fund to Interactive Data Corporation,  as
the  Evaluator, and to the use of the obligations prepared by us which  are
referred to in such Prospectus and Statement.
     
     You  are  authorized to file copies of this letter with the Securities
and Exchange Commission.

Very truly yours,

James Perry
Vice President


                                                                Exhibit 4.2

Standard & Poor's
A division of The McGraw-Hill Companies, Inc.
25 Broadway
New York, New York  10004-1064


Van Kampen American Capital
One Parkview Plaza
Oakbrook Terrace, Illinois  60181

Re:  Insured Municipals Income Trust, 217th Insured Multi-Series - consisting
of:
     Insured Municipals Income Trust, Series 389;
     U.S. Territorial Insured Municipals Income Trust, Series 1;
     Michigan Insured Municipals Income Trust, Series 145 and
     Ohio Insured Municipals Income Trust, Series 107
     
     Pursuant  to your request for a Standard & Poor's rating on the units  of
the  above-captioned trust, SEC #333-25119, we have reviewed  the  information
presented to us and have assigned a 'AAA' rating to the units of the trust and
a  'AAA'  rating to the securities contained in the trust for as long as  they
remain in the trust.  The ratings are direct reflections, of the portfolio  of
the  trust,  which  will  be  composed solely of securities  covered  by  bond
insurance policies that insure against default in the payment of principal and
interest  on the securities so long as they remain in the trust.   Since  such
policies  have been issued by one or more insurance companies which have  been
assigned a 'AAA' claims paying ability rating by S&P, S&P has assigned a 'AAA'
rating to the units of the trust and to the securities contained in the  trust
for as long as they remain in the trust.
     
     Standard  &  Poor's will maintain surveillance on the "AAA" Rating  Until
June  30,  1998.  On this date, the rating will be automatically withdrawn  by
Standard & Poor's unless a post effective letter is requested by the trust.
     
     You  have permission to use the name of Standard & Poor's Corporation and
the   above-assigned  ratings  in  connection  with  your   dissemination   of
information relating to these units, provided that it is understood  that  the
ratings are not "market" ratings nor recommendations to buy, hold, or sell the
units  of  the  trust or the securities contained in the trust.   Further,  it
should  be  understood the rating on the units does not take into account  the
extent  to  which  fund expenses or portfolio asset sales for  less  than  the
fund's  purchase price will reduce payment to the unit holders of the interest
and  principal required to be paid on the portfolio assets.  S&P reserves  the
right  to  advise its own clients, subscribers, and the public of the ratings.
S&P  relies on the sponsor and its counsel, accountants, and other experts for
the  accuracy and completeness of the information submitted in connection with
the  ratings.  S&P does not independently verify the truth or accuracy of  any
such information.
     
     This  letter evidences our consent to the use of the name of  Standard  &
Poor's Corporation in connection with the rating assigned to the units in  the
registration  statement  or prospectus relating to the  units  or  the  trust.
However,  this letter should not be construed as a consent by us,  within  the
meaning of Section 7 of the Securities Act of 1933, to the use of the name  of
Standard & Poor's Corporation in connection with the ratings assigned  to  the
securities contained in the trust.  You are hereby authorized to file  a  copy
of this letter with the Securities and Exchange Commission.
     
     Please  be  certain to send us three copies of your final  prospectus  as
soon  as it becomes available.  Should we not receive them within a reasonable
time  after the closing or should they not conform to the representations made
to us, we reserve the right to withdraw the rating.
     
     We  are pleased to have had the opportunity to be of service to you.   If
we can be of further help, please do not hesitate to call upon us.

                                    Sincerely,
                                    
                                    Sanford B. Bragg
                                    Managing Director



                                                          Exhibit 4.3
                                    
                                    
            Independent Certified Public Accountants' Consent
     
     We have issued our report dated May 30, 1997 on the statements of
condition and related bond portfolios of Insured Municipals Income Trust,
217th Insured Multi-Series (IM-IT, U.S. Territorial IM-IT, Michigan IM-IT
and Ohio IM-IT Trusts) as of May 30, 1997 contained in the Registration
Statement on Form S-6 and Prospectus.  We consent to the use of our
report in the Registration Statement and Prospectus and to the use of our
name as it appears under the caption "Trust Administration-Independent
Certified Public Accountants" in Part II of the Prospectus.



                                    Grant Thornton LLP

Chicago, Illinois
May 30, 1997

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

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This report reflects the current period taken from 487 on May 30, 1997 it is
unaudited
</LEGEND>
<SERIES>
<NUMBER> 389
<NAME> IM-IT
       
<CAPTION>
<S>                         <C>                  
<PERIOD-TYPE>               OTHER                
<FISCAL-YEAR-END>               APR-30-1998     
<PERIOD-START>                  MAY-30-1997     
<PERIOD-END>                    MAY-30-1997     
<INVESTMENTS-AT-COST>               8836732     
<INVESTMENTS-AT-VALUE>              8836732     
<RECEIVABLES>                        114719     
<ASSETS-OTHER>                            0     
<OTHER-ITEMS-ASSETS>                      0     
<TOTAL-ASSETS>                      8951451     
<PAYABLE-FOR-SECURITIES>                  0     
<SENIOR-LONG-TERM-DEBT>                   0     
<OTHER-ITEMS-LIABILITIES>            114719     
<TOTAL-LIABILITIES>                  114719     
<SENIOR-EQUITY>                           0     
<PAID-IN-CAPITAL-COMMON>            8836732     
<SHARES-COMMON-STOCK>                  9292     
<SHARES-COMMON-PRIOR>                     0     
<ACCUMULATED-NII-CURRENT>                 0     
<OVERDISTRIBUTION-NII>                    0     
<ACCUMULATED-NET-GAINS>                   0     
<OVERDISTRIBUTION-GAINS>                  0     
<ACCUM-APPREC-OR-DEPREC>                  0     
<NET-ASSETS>                        8836732     
<DIVIDEND-INCOME>                         0     
<INTEREST-INCOME>                         0     
<OTHER-INCOME>                            0     
<EXPENSES-NET>                            0     
<NET-INVESTMENT-INCOME>                   0     
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<NET-CHANGE-FROM-OPS>                     0     
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<OVERDISTRIB-NII-PRIOR>                   0     
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<EXPENSE-RATIO>                           0     
<AVG-DEBT-OUTSTANDING>                    0     
<AVG-DEBT-PER-SHARE>                      0     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This report reflects the current taken from 487 on May 30, 1997 it is unaudited
</LEGEND>
<SERIES>
<NUMBER> 1
<NAME> I-US
       
<CAPTION>
<S>                         <C>                  
<PERIOD-TYPE>               OTHER                
<FISCAL-YEAR-END>               APR-30-1998     
<PERIOD-START>                  MAY-30-1997     
<PERIOD-END>                    MAY-30-1997     
<INVESTMENTS-AT-COST>               2888198     
<INVESTMENTS-AT-VALUE>              2888198     
<RECEIVABLES>                         34468     
<ASSETS-OTHER>                            0     
<OTHER-ITEMS-ASSETS>                      0     
<TOTAL-ASSETS>                      2922666     
<PAYABLE-FOR-SECURITIES>                  0     
<SENIOR-LONG-TERM-DEBT>                   0     
<OTHER-ITEMS-LIABILITIES>             34468     
<TOTAL-LIABILITIES>                   34468     
<SENIOR-EQUITY>                           0     
<PAID-IN-CAPITAL-COMMON>            2888198     
<SHARES-COMMON-STOCK>                  3037     
<SHARES-COMMON-PRIOR>                     0     
<ACCUMULATED-NII-CURRENT>                 0     
<OVERDISTRIBUTION-NII>                    0     
<ACCUMULATED-NET-GAINS>                   0     
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<ACCUM-APPREC-OR-DEPREC>                  0     
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<DIVIDEND-INCOME>                         0     
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<OTHER-INCOME>                            0     
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<NET-INVESTMENT-INCOME>                   0     
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<EXPENSE-RATIO>                           0     
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<AVG-DEBT-PER-SHARE>                      0     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This report reflects the current taken from 487 on May 30, 1997 it is unaudited
</LEGEND>
<SERIES>
<NUMBER> 145
<NAME> I-MI
       
<CAPTION>
<S>                         <C>                  
<PERIOD-TYPE>               OTHER                
<FISCAL-YEAR-END>               APR-30-1998     
<PERIOD-START>                  MAY-30-1997     
<PERIOD-END>                    MAY-30-1997     
<INVESTMENTS-AT-COST>               2860619     
<INVESTMENTS-AT-VALUE>              2860619     
<RECEIVABLES>                         24775     
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<NET-INVESTMENT-INCOME>                   0     
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<DISTRIBUTIONS-OF-GAINS>                  0     
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<NUMBER-OF-SHARES-SOLD>                   0     
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<EXPENSE-RATIO>                           0     
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<AVG-DEBT-PER-SHARE>                      0     
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This report reflects the current taken from 487 on May 30, 1997 it is unaudited
</LEGEND>
<SERIES>
<NUMBER> 107
<NAME> I-OH
       
<CAPTION>
<S>                         <C>                  
<PERIOD-TYPE>               OTHER                
<FISCAL-YEAR-END>               APR-30-1998     
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<PERIOD-END>                    MAY-30-1997     
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<DISTRIBUTIONS-OF-GAINS>                  0     
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<NUMBER-OF-SHARES-SOLD>                   0     
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</TABLE>


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