NUVEEN TAX EXEMPT UNIT TRUST SERIES 770
497, 1994-12-05
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     SHORT INTERMEDIATE
     INSURED
     TRUST 37
 
            Estimated Current Return
            First
            Year: 5.16% to 5.29%
            Subsequent
            Years: 5.19% to 5.32%
            as of 12/01/94
 
            Estimated Long Term Return
            5.45% to 5.59%
             75,000 units in a
             diversified $7,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6710A0 403 Monthly Payment Option
                  6710A0 411 Quarterly Payment Option
                  6710A0 429 Semi-Annual Payment Option
 
                  Registered in all states
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, SHORT INTERMEDIATE INSURED TRUST 37
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT DECEMBER 2, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  750,000    State of California, Various Purpose General Obligation            No Optional          AAA           Aaa
                  Bonds, 5.70% Due 11/1/99. (When issued.)                            Call
     450,000    Pinellas County, Florida, Resource Recovery Refunding              No Optional          AAA           Aaa
                  Revenue Bonds, Series 1990A, 6.50% Due 10/1/99.                     Call
   1,000,000    Illinois Health Facilities Authority, Revenue Bonds                No Optional          AAA           Aaa
                  (Hospital Sisters Services, Inc.-Obligated Group), Series           Call
                  1991C, 6.10% Due 6/1/00.
     750,000    State of Illinois, General Obligation Refunding Bonds,             No Optional          AAA           Aaa
                  Series of June 1993, 4.70% Due 6/1/99.                              Call
     340,000    Department of Transportation of Maryland, Consolidated             No Optional          AAA           Aaa
                  Transportation Bonds, Series 1991, 5.90% Due 9/1/99.                Call
     500,000    Kent Hospital Finance Authority (Michigan), Hospital Revenue       No Optional          AAA           Aaa
                  Refunding Bonds (Butterworth Hospital), Series 1993A,               Call
                  4.40% Due 1/15/00.
     635,000    City of Albuquerque, New Mexico, Joint Water and Sewer             No Optional          AAA           Aaa
                  System, Refunding and Improvement Revenue Bonds, Series             Call
                  1994A, 4.00% Due 7/1/99.
     500,000    The City of New York (New York), General Obligation Bonds,         No Optional          AAA           Aaa
                  Fiscal 1993 Series C, 5.80% Due 8/1/99.                             Call
     325,000    New York City (New York), Municipal Water Finance Authority,       No Optional          AAA           Aaa
                  Water and Sewer System Revenue Bonds, Fiscal 1992 Series            Call
                  A, 6.20% Due 6/15/99.
     750,000    Dormitory Authority of the State of New York, City                 No Optional          AAA           Aaa
                  University System Consolidated, Third General Resolution            Call
                  Revenue Bonds, 1994 Series 2, 5.60% Due 7/1/99. (When
                  issued.)
     750,000    Commonwealth of Pennsylvania, General Obligation Bonds,            No Optional          AAA           Aaa
                  Third Series of 1994, 5.60% Due 11/15/99. (When issued.)            Call
     750,000    Charleston County, South Carolina, Charleston Public               No Optional          AAA           Aaa
                  Facilities Corporation, Certificates of Participation,              Call
                  Series 1994B,
                400M-5.75% Due 12/1/99,
                350M-5.75% Due 6/1/00.
                  (When issued.)
  ----------
  $7,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                              Estimated Current Return (2)
          AMOUNT PURCHASED                         Public      -----------------------------------------------------------
- -------------------------------------  Sales      Offering         Monthly           Quarterly            Semi-Annual
     Units              Dollars        Charge     Price (1)        Payment            Payment               Payment
- ----------------  -------------------  ------    -----------   ---------------    ---------------    ---------------------
<S>               <C>                  <C>       <C>           <C>       <C>      <C>       <C>      <C>       <C>
50-499                 $5,000-$49,999   3.00 %   $    101.65     (5.16%)  5.19%     (5.19%)  5.22%     (5.21%)  5.24%
500-999                 50,000-99,999   2.80          101.44     (5.17)   5.20      (5.20)   5.23      (5.22)   5.25
1,000-2,499           100,000-249,999   2.60          101.23     (5.18)   5.21      (5.21)   5.24      (5.23)   5.26
2,500-4,999           250,000-499,999   2.35          100.97     (5.19)   5.22      (5.22)   5.25      (5.24)   5.27
5,000-9,999           500,000-999,999   2.10          100.71     (5.20)   5.24      (5.24)   5.27      (5.25)   5.29
10,000-24,999     1,000,000-2,499,999   1.85          100.46     (5.22)   5.25      (5.25)   5.28      (5.27)   5.30
25,000-49,999     2,500,000-4,999,999   1.80          100.41     (5.22)   5.25      (5.25)   5.28      (5.27)   5.30
50,000 and over    5,000,000 and over   1.50          100.10     (5.24)   5.27      (5.27)   5.30      (5.29)   5.32
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   3.00 %   $    101.65          5.45%            5.48%            5.50%
500-999                 50,000-99,999   2.80          101.44          5.46             5.49             5.51
1,000-2,499           100,000-249,999   2.60          101.23          5.47             5.50             5.52
2,500-4,999           250,000-499,999   2.35          100.97          5.49             5.51             5.53
5,000-9,999           500,000-999,999   2.10          100.71          5.50             5.53             5.55
10,000-24,999     1,000,000-2,499,999   1.85          100.46          5.51             5.54             5.56
25,000-49,999     2,500,000-4,999,999   1.80          100.41          5.52             5.55             5.57
50,000 and over    5,000,000 and over   1.50          100.10          5.54             5.57             5.59
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to the Date of Deposit. Figures in
    brackets represent the current return. The first year's estimated current
    returns are slightly lower than those for subsequent years because a portion
    of the monies received in the first year only will be treated as a return of
    principal due to the inclusion in the portfolio of "when issued" or other
    Bonds having delivery dates after the date of settlement for a purchase made
    on the Date of Deposit.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                                       Normal
                                                                                                                   Distributions
Short Intermediate Insured Trust                                        1995                                         per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .4245(1)                                                               $  5.2739
                                                             --------    $.4392 every month    --------
Quarterly Distribution Plan...........  $   .4245(1)   $   .4419(2)   $  1.3257      $  1.3257      $  1.3257      $  5.3059
Semi-Annual Distribution Plan.........  $   .4245(1)                  $  1.7748(3)                  $  2.6622      $  5.3249
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.10 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01464 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.4245 per unit for the 29-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.4245 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01464              Quarterly - $0.01473
                             Semi-Annual - $0.01479
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
- --------------------------------------------------------------------------------
<PAGE>
- -------------------------------------------------
 
DIVERSIFICATION OF PORTFOLIO INCOME
 
There are 12 Tax-exempt bond issues in this trust; this diversified portfolio
yields current income from issuers in 9 states.
- -------------------------------------------------------
<TABLE>
<CAPTION>
                   Percent
                   of Total
                   Income
<S>                    <C>        <C>
- ------------------------
                                  %
California                  10.4
Florida                      7.1
Illinois                    23.3
Maryland                     4.9
Michigan                     5.3
 
<CAPTION>
                   Percent
                   of Total
                   Income
- ------------------------
<S>                    <C>        <C>
                                  %
New Mexico                   6.2
New York                    22.1
Pennsylvania                10.2
South Carolina              10.5
</TABLE>
 
- -------------------------------------------------
 
AVERAGE PORTFOLIO LIFE The average maturity
of portfolio bonds is 4.9 years.
 
<TABLE>
<CAPTION>
Year Bonds Mature                        Amount      Percent
- -------------------------------------  ----------  -----------
<S>                                    <C>         <C>
1999.................................       5,650        75.3%
2000.................................       1,850        24.7
</TABLE>
 
- -------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
 
770
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     ARIZONA
     INSURED
     TRUST 36
 
            Estimated Current Return
            5.98% to 6.22%
            as of 12/01/94
 
            Estimated Long Term Return
            6.32% to 6.56%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101J 378 Monthly Payment Option
                  67101J 386 Quarterly Payment Option
                  67101J 394 Semi-Annual Payment Option
 
                  Registered in Arizona
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, ARIZONA INSURED TRUST 36
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT DECEMBER 2, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  505,000    Gilbert Unified School District No. 41 of Maricopa County,         2002 at 100          AAA           Aaa
                  Arizona, School Improvement Bonds, Project of 1988, Series
                  G (1993), 5.50% Due 7/1/12. (General Obligation Bonds.)
     525,000    Paradise Valley Unified School District No. 69 of Maricopa         2004 at 102          AAA           Aaa
                  County, Arizona, School Improvement Bonds, Project of
                  1990, Series E (1994), 4.80% Due 7/1/13. (General
                  Obligation Bonds.)
     500,000    The Industrial Development Authority of the County of              No Optional          AAA           Aaa
                  Maricopa (Arizona), Samaritan Health Services, Hospital             Call
                  System Revenue Refunding Bonds, Series 1990A, 7.00% Due
                  12/1/16.
     500,000    City of Peoria, Arizona, General Obligation Refunding Bonds,       2003 at 101          AAA           Aaa
                  Series 1993, 5.70% Due 7/1/11.
     295,000    Phoenix Housing Finance Corporation (Arizona), Mortgage            2002 at 101          AAA           Aaa
                  Revenue Refunding Bonds, Series 1992A (FHA Insured
                  Mortgage Loans-Section 8 Assisted Projects), 6.50% Due
                  7/1/24.
     500,000    Salt River Project Agricultural Improvement and Power              2003 at 102          AAA           Aaa
                  District, Arizona, Salt River Project Electric System
                  Refunding Revenue Bonds, 1993 Series B, 5.25% Due 1/1/13.
     150,000    Tucson Airport Authority, Inc. (Arizona), Airport Revenue          2003 at 102          AAA           Aaa
                  Bonds, Refunding Series 1993, 5.70% Due 6/1/13.
     525,000    Commonwealth of Puerto Rico, Public Improvement Bonds of           2004 at 101          AAA           Aaa
                  1994 (General Obligation Bonds), 6.50% Due 7/1/23.                   1/2
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     93.67          5.98%            6.02%            6.04%
500-999                 50,000-99,999   4.75           93.52          5.99             6.03             6.05
1,000-2,499           100,000-249,999   4.50           93.28          6.01             6.04             6.06
2,500-4,999           250,000-499,999   4.25           93.03          6.03             6.06             6.08
5,000-9,999           500,000-999,999   3.50           92.31          6.07             6.11             6.13
10,000-24,999     1,000,000-2,499,999   3.00           91.84          6.10             6.14             6.16
25,000-49,999     2,500,000-4,999,999   2.50           91.36          6.14             6.17             6.19
50,000 and over    5,000,000 and over   2.00           90.90          6.17             6.20             6.22
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     93.67          6.32%            6.34%            6.36%
500-999                 50,000-99,999   4.75           93.52          6.32             6.35             6.37
1,000-2,499           100,000-249,999   4.50           93.28          6.34             6.37             6.39
2,500-4,999           250,000-499,999   4.25           93.03          6.35             6.38             6.40
5,000-9,999           500,000-999,999   3.50           92.31          6.41             6.44             6.46
10,000-24,999     1,000,000-2,499,999   3.00           91.84          6.44             6.47             6.49
25,000-49,999     2,500,000-4,999,999   2.50           91.36          6.47             6.50             6.52
50,000 and over    5,000,000 and over   2.00           90.90          6.51             6.54             6.56
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to Date of Deposit. The estimated
    current return for purchases made on such date will be as shown, as long as
    the portfolio size and composition remain the same.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                                       Normal
                                                                                                                   Distributions
Arizona Insured Trust                                                   1995                                         per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .4515(1)                                                               $  5.6056
                                                             --------    $.4671 every month    --------
Quarterly Distribution Plan...........  $   .4515(1)   $   .4698(2)   $  1.4094      $  1.4094      $  1.4094      $  5.6376
Semi-Annual Distribution Plan.........  $   .4515(1)                  $  1.8852(3)                  $  2.8278      $  5.6566
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.11 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01557 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.4515 per unit for the 29-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.4515 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01557              Quarterly - $0.01566
                             Semi-Annual - $0.01571
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
- --------------------------------------------------------------------------------
 
                                                          770
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 21.0 years.
The first bond is scheduled to mature in July, 2011, with the last bond maturity
being July, 2024.
 
- -------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     MICHIGAN
     INSURED
     TRUST 58
 
            Estimated Current Return
            First
            Year: 6.20% to 6.44%
            Subsequent
            Years: 6.21% to 6.45%
            as of 12/01/94
 
            Estimated Long Term Return
            6.37% to 6.62%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67095E 252 Monthly Payment Option
                  67095E 260 Quarterly Payment Option
                  67095E 278 Semi-Annual Payment Option
 
                  Registered in Michigan
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, MICHIGAN INSURED TRUST 58
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT DECEMBER 2, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    Michigan Municipal Bond Authority, Local Government Loan           2004 at 102          AAA           Aaa
                  Program Revenue Bonds, Series 1994A (Wayne County Building
                  Authority Bonds), 6.125% Due 12/1/18.
     360,000    Michigan Public Power Agency, Belle River Project Refunding        2003 at 102          AAA           Aaa
                  Revenue Bonds, 1993 Series A, 5.25% Due 1/1/18. (Original
                  issue discount bonds delivered on or about April 14, 1993
                  at a price of 92.48% of principal amount.)
     500,000    Grand Ledge Public Schools, Counties of Eaton, Clinton and         2004 at 102          AAA           Aaa
                  Ionia, State of Michigan, 1994 School Building and Site
                  Bonds, 6.60% Due 5/1/24. (General Obligation Bonds.)
     440,000    Downtown Development Authority of The City of Grand Rapids,        2004 at 102          AAA           Aaa
                  Michigan, Tax Increment Revenue Bonds, Series 1994, 6.875%
                  Due 6/1/24. (When issued.)
     500,000    Kent Hospital Finance Authority (Michigan), Hospital Revenue       2003 at 102          AAA           Aaa
                  Refunding Bonds (Butterworth Hospital), Series 1993A,
                  5.375% Due 1/15/19.
     225,000    Lake Orion Community School District, County of Oakland,           2005 at 101          AAA           Aaa
                  State of Michigan, 1994 School Building and Site and
                  Refunding Bonds, 7.00% Due 5/1/20. (General Obligation
                  Bonds.)
     500,000    Warren Consolidated Schools, Counties of Macomb and Oakland,       2003 at 102          AAA           Aaa
                  State of Michigan, 1993 Refunding Bonds, 5.50% Due 5/1/21.
                  (General Obligation Bonds.)
     475,000    Commonwealth of Puerto Rico, Public Improvement Bonds of           2004 at 101          AAA           Aaa
                  1994 (General Obligation Bonds), 6.50% Due 7/1/23.                   1/2
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                              Estimated Current Return (2)
          AMOUNT PURCHASED                         Public      -----------------------------------------------------------
- -------------------------------------  Sales      Offering         Monthly           Quarterly            Semi-Annual
     Units              Dollars        Charge     Price (1)        Payment            Payment               Payment
- ----------------  -------------------  ------    -----------   ---------------    ---------------    ---------------------
<S>               <C>                  <C>       <C>           <C>       <C>      <C>       <C>      <C>       <C>
50-499                 $5,000-$49,999   4.90 %   $     94.64     (6.20%)  6.21%     (6.23%)  6.24%     (6.25%)  6.26%
500-999                 50,000-99,999   4.75           94.49     (6.21)   6.22      (6.24)   6.25      (6.26)   6.27
1,000-2,499           100,000-249,999   4.50           94.24     (6.22)   6.24      (6.26)   6.27      (6.28)   6.29
2,500-4,999           250,000-499,999   4.25           94.00     (6.24)   6.25      (6.27)   6.29      (6.29)   6.31
5,000-9,999           500,000-999,999   3.50           93.26     (6.29)   6.30      (6.32)   6.34      (6.34)   6.36
10,000-24,999     1,000,000-2,499,999   3.00           92.78     (6.32)   6.33      (6.35)   6.37      (6.37)   6.39
25,000-49,999     2,500,000-4,999,999   2.50           92.31     (6.35)   6.37      (6.39)   6.40      (6.41)   6.42
50,000 and over    5,000,000 and over   2.00           91.84     (6.38)   6.40      (6.42)   6.43      (6.44)   6.45
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     94.64          6.37%            6.40%            6.42%
500-999                 50,000-99,999   4.75           94.49          6.38             6.41             6.43
1,000-2,499           100,000-249,999   4.50           94.24          6.40             6.43             6.45
2,500-4,999           250,000-499,999   4.25           94.00          6.41             6.44             6.46
5,000-9,999           500,000-999,999   3.50           93.26          6.47             6.49             6.51
10,000-24,999     1,000,000-2,499,999   3.00           92.78          6.50             6.53             6.55
25,000-49,999     2,500,000-4,999,999   2.50           92.31          6.53             6.56             6.58
50,000 and over    5,000,000 and over   2.00           91.84          6.57             6.60             6.62
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to the Date of Deposit. Figures in
    brackets represent the current return. The first year's estimated current
    returns are slightly lower than those for subsequent years because a portion
    of the monies received in the first year only will be treated as a return of
    principal due to the inclusion in the portfolio of "when issued" or other
    Bonds having delivery dates after the date of settlement for a purchase made
    on the Date of Deposit.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                                       Normal
                                                                                                                   Distributions
Michigan Insured Trust                                                  1995                                         per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .4732(1)                                                               $  5.8770
                                                             --------    $.4896 every month    --------
Quarterly Distribution Plan...........  $   .4732(1)   $   .4923(2)   $  1.4769      $  1.4769      $  1.4769      $  5.9090
Semi-Annual Distribution Plan.........  $   .4732(1)                  $  1.9752(3)                  $  2.9628      $  5.9280
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.11 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01632 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.4732 per unit for the 29-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.4732 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01632              Quarterly - $0.01641
                             Semi-Annual - $0.01646
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
- --------------------------------------------------------------------------------
 
                                                          770
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.4 years.
The first bond is scheduled to mature in January, 2018, with the last bond
maturity being June, 2024.
 
- -------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     OHIO
     INSURED
     TRUST 120
 
            Estimated Current Return
            6.14% to 6.39%
            as of 12/01/94
 
            Estimated Long Term Return
            6.30% to 6.54%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101Y 557 Monthly Payment Option
                  67101Y 565 Quarterly Payment Option
                  67101Y 573 Semi-Annual Payment Option
 
                  Registered in Ohio
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, OHIO INSURED TRUST 120
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT DECEMBER 2, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    City of Akron, Ohio, Waterworks System Mortgage Revenue            2004 at 102          AAA           Aaa
                  Improvement Bonds, Series 1994, 6.00% Due 3/1/14.
     500,000    County of Fairfield, Ohio, Hospital Facilities Refunding           2003 at 102          AAA           Aaa
                  Revenue Bonds, Series 1993 (Lancaster-Fairfield Community
                  Hospital), 5.50% Due 6/15/21.
     500,000    The Franklin County Convention Facilities Authority (Ohio),        2002 at 102          AAA           Aaa
                  Tax and Lease Revenue Anticipation Refunding Bonds, Series
                  1992, 5.85% Due 12/1/19.
     275,000    Loveland City School District, Counties of Hamilton,               2002 at 102          AAA           Aaa
                  Clermont and Warren, Ohio, School Improvement General
                  Obligation Bonds, 7.10% Due 12/1/09.
     385,000    County of Lucas, Ohio, Hospital Refunding Revenue Bonds,           2003 at 102          AAA           Aaa
                  Series 1993 (St. Vincent Medical Center), 5.45% Due
                  8/15/14.
      90,000    Mentor Exempted Village School District, Ohio, General             2003 at 102          AAA           Aaa
                  Obligation, School Improvement Refunding Bonds, Series
                  1993, 5.375% Due 12/1/11.
     500,000    City of Cleveland, Ohio, Public Power System First Mortgage        2004 at 102          AAA           Aaa
                  Revenue Bonds, Series 1994A, 7.00% Due 11/15/24.
     250,000    Reynoldsburg City School District, Ohio, General Obligation        2002 at 102          AAA           Aaa
                  Bonds, For School Building Construction and Improvement,
                  6.55% Due 12/1/17.
     500,000    Commonwealth of Puerto Rico, Public Improvement Bonds of           2004 at 101          AAA           Aaa
                  1994 (General Obligation Bonds), 6.50% Due 7/1/23.                   1/2
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     96.62          6.14%            6.18%            6.20%
500-999                 50,000-99,999   4.75           96.47          6.15             6.19             6.21
1,000-2,499           100,000-249,999   4.50           96.22          6.17             6.20             6.22
2,500-4,999           250,000-499,999   4.25           95.97          6.19             6.22             6.24
5,000-9,999           500,000-999,999   3.50           95.22          6.23             6.27             6.29
10,000-24,999     1,000,000-2,499,999   3.00           94.73          6.27             6.30             6.32
25,000-49,999     2,500,000-4,999,999   2.50           94.25          6.30             6.33             6.35
50,000 and over    5,000,000 and over   2.00           93.77          6.33             6.36             6.39
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     96.62          6.30%            6.32%            6.34%
500-999                 50,000-99,999   4.75           96.47          6.30             6.33             6.35
1,000-2,499           100,000-249,999   4.50           96.22          6.32             6.35             6.37
2,500-4,999           250,000-499,999   4.25           95.97          6.34             6.36             6.38
5,000-9,999           500,000-999,999   3.50           95.22          6.39             6.42             6.44
10,000-24,999     1,000,000-2,499,999   3.00           94.73          6.42             6.45             6.47
25,000-49,999     2,500,000-4,999,999   2.50           94.25          6.46             6.48             6.50
50,000 and over    5,000,000 and over   2.00           93.77          6.49             6.52             6.54
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to Date of Deposit. The estimated
    current return for purchases made on such date will be as shown, as long as
    the portfolio size and composition remain the same.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                                       Normal
                                                                                                                   Distributions
Ohio Insured Trust                                                      1995                                         per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .4782(1)                                                               $  5.9364
                                                             --------    $.4947 every month    --------
Quarterly Distribution Plan...........  $   .4782(1)   $   .4971(2)   $  1.4913      $  1.4913      $  1.4913      $  5.9684
Semi-Annual Distribution Plan.........  $   .4782(1)                  $  1.9956(3)                  $  2.9934      $  5.9874
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.12 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01649 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.4782 per unit for the 29-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.4782 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01649              Quarterly - $0.01657
                             Semi-Annual - $0.01663
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
- --------------------------------------------------------------------------------
 
                                                          770
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 23.9 years.
The first bond is scheduled to mature in December, 2009, with the last bond
maturity being November, 2024.
 
- -------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
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