NUVEEN TAX EXEMPT UNIT TRUST SERIES 728
497, 1994-05-06
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     Nuveen
     National
     Trust 530
              (National Traditional Trust 530)
 
            Estimated Current Return
            First
            Year: 5.83% to 6.06%
            Subsequent
            Years: 5.85% to 6.08%
            as of 05/04/94
 
            Estimated Long Term Return
            5.92% to 6.15%
             100,000 units in a
             diversified $10,000,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  67101E 791 Monthly Payment Option
                  67101E 809 Quarterly Payment Option
                  67101E 817 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--NATIONAL TRADITIONAL TRUST 530
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT MAY 5, 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 Public Works Board of the State of California, Lease         2004 at 102          A-            A1
                  Revenue Bonds (The Regents of the University of
                  California), 1994 Series A (Various University of
                  California Projects), 6.375% Due 10/1/19.
     500,000    Poudre School District R-1, Larimer County, Colorado,              2002 at 101          --             A
                  General Obligation Improvement Bonds, Series 1992, 6.15%
                  Due 12/15/16.
     250,000    Columbus, Georgia, Water and Sewerage Revenue Refunding            2003 at 102          A+             A
                  Bonds, Series 1993, 5.70% Due 5/1/20.
     750,000    Village of Bryant, Illinois, Pollution Control Refunding           2003 at 102          AA            Aa2
                  Revenue Bonds (Central Illinois Light Company Project),
                  Series 1993, 5.90% Due 8/1/23.
     750,000    Illinois Health Facilities Authority Revenue Refunding             2004 at 102           A             A
                  Bonds, Series 1993A (Edward Hospital Project), 6.00% Due
                  2/15/19.
     750,000    Illinois Educational Facilities Authority, Revenue Bonds,          2003 at 102           A            A1
                  Illinois Wesleyan University, Series 1993, 5.625% Due
                  9/1/18.
     500,000    Fort Wayne South Side School Bldg. Corp., First Mortgage           2004 at 102          AAA           Aaa
                  Bonds, Series 1994, Allen County, Indiana, 6.125% Due
                  1/15/12. (General Obligation Bonds.) (When issued.) (MBIA
                  Insured.)
     500,000    The Indianapolis Local Public Improvement Bond Bank                2003 at 102          A+            --
                  (Indiana), Series 1992 D Bonds, 6.75% Due 2/1/20.
     750,000    County of Boone, Kentucky, Collateralized Pollution Control        2002 at 102          AA-           A1
                  Revenue Refunding Bonds, 1992 Series A (The Dayton Power
                  and Light Company Project), 6.50% Due 11/15/22.
     750,000    St. Tammany Parish Hospital Service District No. 2, State of       2004 at 102          AAA           --
                  Louisiana, Hospital Revenue Bonds, Series 1994, 6.25% Due
                  10/1/14. (ConnieLee Insured.)
     500,000    Maine Municipal Bond Bank, 1993 Series B, 5.85% Due 11/1/20.       2003 at 102          A+            Aa
     500,000    Prince George's County, Maryland, Pollution Control Revenue        2003 at 102          A+            A1
                  Refunding Bonds (Potomac Electric Project), 1993 Series,
                  6.375% Due 1/15/23.
     750,000    Massachusetts Port Authority, Revenue Bonds, Series 1992-B,        2003 at 102          AA-           Aa
                  6.00% Due 7/1/23.
     750,000    Pennsylvania Intergovernmental Cooperation Authority,              2003 at 100          AAA           Aaa
                  Special Tax Revenue Bonds (City of Philadelphia Funding
                  Program), Series of 1993, 5.625% Due 6/15/23. (MBIA
                  Insured.)
     500,000    Harris County, Texas, Health Facilities Development                2004 at 102          A-             A
                  Corporation, Hospital Revenue Bonds (Memorial Hospital
                  System Project), Series 1994A, 6.60% Due 6/1/14. (When
                  issued.)
     750,000    Washington Public Power Supply System, Nuclear Project No. 3       2003 at 102          AA            Aa
                  Refunding Revenue Bonds, Series 1993B, 5.625% Due 7/1/12.
  ----------
  $10,000,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. 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 %   $    100.47     (5.83%)  5.85%     (5.86%)  5.88%     (5.88%)  5.90%
500-999                 50,000-99,999   4.75          100.31     (5.84)   5.86      (5.87)   5.89      (5.89)   5.91
1,000-2,499           100,000-249,999   4.50          100.05     (5.86)   5.87      (5.89)   5.90      (5.91)   5.92
2,500-4,999           250,000-499,999   4.25           99.79     (5.87)   5.89      (5.90)   5.92      (5.92)   5.94
5,000-9,999           500,000-999,999   3.50           99.02     (5.92)   5.93      (5.95)   5.97      (5.97)   5.98
10,000-24,999     1,000,000-2,499,999   3.00           98.51     (5.95)   5.96      (5.98)   6.00      (6.00)   6.02
25,000-49,999     2,500,000-4,999,999   2.50           98.00     (5.98)   6.00      (6.01)   6.03      (6.03)   6.05
50,000 and over    5,000,000 and over   2.00           97.50     (6.01)   6.03      (6.04)   6.06      (6.06)   6.08
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
          AMOUNT PURCHASED
- -------------------------------------
                                                                         Estimated Long Term Return (3)
     Units                                                    -----------------------------------------------------
- ----------------
                                                   Public
                                       Sales      Offering          Monthly         Quarterly       Semi-Annual
                        Dollars        Charge     Price (1)         Payment          Payment          Payment
                  -------------------  ------    -----------     -------------    -------------    -------------
50-499                 $5,000-$49,999   4.90 %   $    100.47          5.92    %        5.94    %        5.96    %
500-999                 50,000-99,999   4.75          100.31          5.92             5.95             5.97
1,000-2,499           100,000-249,999   4.50          100.05          5.94             5.97             5.99
2,500-4,999           250,000-499,999   4.25           99.79          5.95             5.98             6.00
5,000-9,999           500,000-999,999   3.50           99.02          6.00             6.03             6.05
10,000-24,999     1,000,000-2,499,999   3.00           98.51          6.03             6.06             6.08
25,000-49,999     2,500,000-4,999,999   2.50           98.00          6.07             6.09             6.11
50,000 and over    5,000,000 and over   2.00           97.50          6.10             6.13             6.15
</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
National Traditional Trust                               1994                                  1995                  per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        6/1            8/1           11/1            2/1            5/1
Distribution Date.....................       6/15           8/15          11/15           2/15           5/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .4243(1)                                                               $  5.8753
                                                             --------    $.4896 every month    --------
Quarterly Distribution Plan...........  $   .4243(1)   $   .9840(2)   $  1.4760      $  1.4760      $  1.4760      $  5.9073
Semi-Annual Distribution Plan.........  $   .4243(1)                  $  2.4690(3)                  $  2.9628      $  5.9263
- ---------------------------------------------------------------------------------------------------------------------------------
<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 2-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 5-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 (06/01/94), accrued interest will total
$0.4243 per unit for the 26-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 06/01/94 is $.4243 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01632              Quarterly - $0.01640
                             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.
 
- --------------------------------------------------------------------------------
<PAGE>
- -------------------------------------------------
 
DIVERSIFICATION OF PORTFOLIO INCOME
There are 16 Tax-exempt bond issues in this trust; this diversified portfolio
yields current income from issuers in 13 states.
- -------------------------------------------------
<TABLE>
<CAPTION>
                    Percent
                    of Total
                    Income
<S>                 <C>        <C>
- ------------------------
                               %
California                7.9
Colorado                  5.1
Georgia                   2.3
Illinois                 21.8
Indiana                  10.6
Kentucky                  8.0
Louisiana                 7.7
 
<CAPTION>
                    Percent
                    of Total
                    Income
- ------------------------
<S>                 <C>        <C>
                               %
Massachusetts             7.4
Maryland                  5.2
Maine                     4.8
Pennsylvania              6.9
Texas                     5.4
Washington                6.9
</TABLE>
 
- -------------------------------------------------
 
AVERAGE PORTFOLIO LIFE
 
The average maturity of portfolio bonds is 24.9 years. The first bond is
scheduled to mature in January, 2012, with the last bond maturity being August,
2023.
 
- -------------------------------------------------
QUALITY OF PORTFOLIO AS RATED BY
STANDARD & POOR'S CORPORATION
OR MOODY'S INVESTORS SERVICES
- -------------------------------------------------
 
<TABLE>
<CAPTION>
       Rating          Percent of Portfolio
      Category              Par Value
<S>                    <C>                   <C>
- -------------------------------------------------------------
AAA                         20%
AA                          35
A1/A+                       28
A                           17
                           ---
                           100%
</TABLE>
 
- -------------------------------------------------
 
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.
 
- -------------------------------------------------
 
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
 
                                 1-800-351-4100
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
 
728
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     MARYLAND
     TRUST 294
              (MARYLAND TRADITIONAL TRUST 294)
 
            Estimated Current Return
            5.62% to 5.85%
            as of 05/04/94
 
            Estimated Long Term Return
            5.74% to 5.97%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  67101L 522 Monthly Payment Option
                  67101L 530 Quarterly Payment Option
                  67101L 548 Semi-Annual Payment Option
 
                  Registered in Maryland
                    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--MARYLAND TRADITIONAL TRUST 294
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT MAY 5, 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>
  --------------------------------------------------------------------------------------------------------------------------
  $  100,000    Maryland Health and Higher Educational Facilities Authority,       2003 at 100          AA-           Aa
                  Refunding Revenue Bonds, The Johns Hopkins Hospital Issue,
                  Series 1993, 5.00% Due 7/1/23. (Original issue discount
                  bonds delivered on or about June 22, 1993 at a price of
                  88.683% of principal amount.)
     400,000    Maryland Health and Higher Educational Facilities Authority,       2003 at 102          AAA           Aaa
                  Project and Refunding Revenue Bonds, Mercy Medical Center
                  Issue, Series 1993, 5.75% Due 7/1/15. (AMBAC Insured.)
     500,000    Maryland Health and Higher Educational Facilities Authority,       2003 at 102           A            A1
                  Refunding Revenue Bonds, Suburban Hospital Issue, Series
                  1993, 5.125% Due 7/1/21. (Original issue discount bonds
                  delivered on or about October 14, 1993 at a price of
                  94.689% of principal amount.)
     500,000    Anne Arundel County, Maryland, Pollution Control Revenue           2004 at 102           A            A2
                  Refunding Bonds (Baltimore Gas and Electric Company
                  Project), Series 1994, 6.00% Due 4/1/24.
     500,000    Baltimore County Revenue Authority (Maryland), Revenue             2003 at 102          --             A
                  Refunding Bonds, 1993 Series, 5.375% Due 7/1/13.
     500,000    County Commissioners of Charles County, Maryland, Mortgage         2003 at 102          AAA           Aaa
                  Revenue Refunding Bonds, Series 1994A (Holly Station III
                  Townhouses Project-FHA Insured Mortgage Loan), 5.875% Due
                  7/1/25. (MBIA Insured.)
     500,000    Prince George's County, Maryland, Pollution Control Revenue        2003 at 102          A+            A1
                  Refunding Bonds (Potomac Electric Project), 1993 Series,
                  6.375% Due 1/15/23.
     500,000    Commonwealth of Puerto Rico, Public Improvement Bonds of           2002 at 101          AAA           Aaa
                  1993 (General Obligation Bonds.), 5.875% Due 7/1/18.                 1/2
                  (AMBAC Insured.)
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. 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 %   $     98.32          5.62%            5.66%            5.68%
500-999                 50,000-99,999   4.75           98.16          5.63             5.67             5.69
1,000-2,499           100,000-249,999   4.50           97.91          5.65             5.68             5.70
2,500-4,999           250,000-499,999   4.25           97.65          5.66             5.70             5.71
5,000-9,999           500,000-999,999   3.50           96.89          5.71             5.74             5.76
10,000-24,999     1,000,000-2,499,999   3.00           96.39          5.74             5.77             5.79
25,000-49,999     2,500,000-4,999,999   2.50           95.90          5.77             5.80             5.82
50,000 and over    5,000,000 and over   2.00           95.41          5.80             5.83             5.85
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
          AMOUNT PURCHASED
- -------------------------------------
                                                                         Estimated Long Term Return (3)
     Units                                                    -----------------------------------------------------
- ----------------
                                                   Public
                                       Sales      Offering          Monthly         Quarterly       Semi-Annual
                        Dollars        Charge     Price (1)         Payment          Payment          Payment
                  -------------------  ------    -----------     -------------    -------------    -------------
50-499                 $5,000-$49,999   4.90 %   $     98.32          5.74    %        5.77    %        5.79    %
500-999                 50,000-99,999   4.75           98.16          5.74             5.78             5.80
1,000-2,499           100,000-249,999   4.50           97.91          5.76             5.80             5.82
2,500-4,999           250,000-499,999   4.25           97.65          5.77             5.81             5.83
5,000-9,999           500,000-999,999   3.50           96.89          5.82             5.86             5.88
10,000-24,999     1,000,000-2,499,999   3.00           96.39          5.85             5.89             5.91
25,000-49,999     2,500,000-4,999,999   2.50           95.90          5.88             5.92             5.94
50,000 and over    5,000,000 and over   2.00           95.41          5.91             5.95             5.97
</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
Maryland Traditional Trust                               1994                                  1995                  per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        6/1            8/1           11/1            2/1            5/1
Distribution Date.....................       6/15           8/15          11/15           2/15           5/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3991(1)                                                               $  5.5295
                                                             --------    $.4605 every month    --------
Quarterly Distribution Plan...........  $   .3991(1)   $   .9264(2)   $  1.3896      $  1.3896      $  1.3896      $  5.5615
Semi-Annual Distribution Plan.........  $   .3991(1)                  $  2.3250(3)                  $  2.7900      $  5.5805
- ---------------------------------------------------------------------------------------------------------------------------------
<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 2-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 5-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 $.01535 per unit per day.
Consequently, on the first Record Date (06/01/94), accrued interest will total
$0.3991 per unit for the 26-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 06/01/94 is $.3991 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01535              Quarterly - $0.01544
                             Semi-Annual - $0.01550
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.
 
- --------------------------------------------------------------------------------
 
                                                          728
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.1 years.
The first bond is scheduled to mature in July, 2013, with the last bond maturity
being July, 2025.
 
- -------------------------------------------------
 
QUALITY OF PORTFOLIO AS RATED BY
STANDARD & POOR'S CORPORATION
OR MOODY'S INVESTORS SERVICES
- -------------------------------------------------
 
<TABLE>
<CAPTION>
       Rating          Percent of Portfolio
      Category              Par Value
<S>                    <C>                   <C>
- -------------------------------------------------------------
AAA                         40%
AA                           3
A1/A+                       29
A                           28
                           ---
                           100%
</TABLE>
 
- -------------------------------------------------
 
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.
 
- -------------------------------------------------
 
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
     COLORADO
     INSURED
     TRUST 53
 
            Estimated Current Return
            5.49% to 5.72%
            as of 05/04/94
 
            Estimated Long Term Return
            5.60% to 5.82%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706E9 101 Monthly Payment Option
                  6706E9 119 Quarterly Payment Option
                  6706E9 127 Semi-Annual Payment Option
 
                  Registered in Colorado
                    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, COLORADO INSURED TRUST 53
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT MAY 5, 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    Colorado Health Facilities Authority, Hospital Revenue Bonds       2003 at 102          AAA           Aaa
                  (North Colorado Medical Center), Series 1993, 6.00% Due
                  5/15/20.
     500,000    Colorado Health Facilities Authority Revenue Bonds, Series         2004 at 102          AAA           Aaa
                  1994 (Sisters of Charity Health Care Systems, Inc.), 5.25%
                  Due 5/15/14.
     500,000    Adams County, Colorado, Pollution Control Refunding Revenue        2003 at 101          AAA           Aaa
                  Bonds, 1993 Series A (Public Service Company of Colorado
                  Project), 5.875% Due 4/1/14.
     195,000    City and County of Denver, Colorado, Revenue Bonds, Series         2003 at 102          AAA           Aaa
                  1994 (Sisters of Charity of Leavenworth Health Services
                  Corporation), 5.125% Due 12/1/10.
     305,000    Jefferson County School District No. R-1 (Jefferson County,        2002 at 101          AAA           Aaa
                  Colorado), General Obligation Bonds, Series 1992, 6.00%
                  Due 12/15/12.
     500,000    Poudre School District R-1, Larimer County, Colorado,              2002 at 101          AAA           Aaa
                  General Obligation Improvement Bonds, Series 1992, 6.15%
                  Due 12/15/16.
     500,000    State of Colorado, Board of Trustees of The University of          2004 at 101          AAA           Aaa
                  Northern Colorado, Auxiliary Facilities System Revenue
                  Refunding and Improvement Bonds, Series 1994, 6.00% Due
                  6/1/24. (When issued.)
     500,000    Commonwealth of Puerto Rico, Public Improvement Refunding          2003 at 101          AAA           Aaa
                  Bonds, Series 1993 (General Obligation Bonds.), 5.25% Due            1/2
                  7/1/18. (Original issue discount bonds delivered on or
                  about July 15, 1993 at a price of 93.414% of principal
                  amount.)
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. Estimated Current Return equals net income divided by offering
price. Estimated Long Term Return represents an average of the yields to
maturity (or call) of the Bonds in the Trust adjusted to reflect expenses and
sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $    100.53          5.49%            5.53%            5.55%
500-999                 50,000-99,999   4.75          100.37          5.50             5.54             5.55
1,000-2,499           100,000-249,999   4.50          100.10          5.52             5.55             5.57
2,500-4,999           250,000-499,999   4.25           99.84          5.53             5.56             5.58
5,000-9,999           500,000-999,999   3.50           99.07          5.58             5.61             5.63
10,000-24,999     1,000,000-2,499,999   3.00           98.56          5.60             5.64             5.66
25,000-49,999     2,500,000-4,999,999   2.50           98.05          5.63             5.67             5.69
50,000 and over    5,000,000 and over   2.00           97.55          5.66             5.70             5.72
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
          AMOUNT PURCHASED
- -------------------------------------
                                                                         Estimated Long Term Return (3)
     Units                                                    -----------------------------------------------------
- ----------------
                                                   Public
                                       Sales      Offering          Monthly         Quarterly       Semi-Annual
                        Dollars        Charge     Price (1)         Payment          Payment          Payment
                  -------------------  ------    -----------     -------------    -------------    -------------
50-499                 $5,000-$49,999   4.90 %   $    100.53          5.60    %        5.63    %        5.65    %
500-999                 50,000-99,999   4.75          100.37          5.61             5.64             5.66
1,000-2,499           100,000-249,999   4.50          100.10          5.63             5.65             5.67
2,500-4,999           250,000-499,999   4.25           99.84          5.64             5.67             5.69
5,000-9,999           500,000-999,999   3.50           99.07          5.68             5.71             5.73
10,000-24,999     1,000,000-2,499,999   3.00           98.56          5.71             5.74             5.76
25,000-49,999     2,500,000-4,999,999   2.50           98.05          5.74             5.77             5.79
50,000 and over    5,000,000 and over   2.00           97.55          5.77             5.80             5.82
</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
Colorado Insured Trust                                   1994                                  1995                  per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        6/1            8/1           11/1            2/1            5/1
Distribution Date.....................       6/15           8/15          11/15           2/15           5/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3988(1)                                                               $  5.5239
                                                             --------    $.4602 every month    --------
Quarterly Distribution Plan...........  $   .3988(1)   $   .9258(2)   $  1.3887      $  1.3887      $  1.3887      $  5.5559
Semi-Annual Distribution Plan.........  $   .3988(1)                  $  2.3220(3)                  $  2.7864      $  5.5749
- ---------------------------------------------------------------------------------------------------------------------------------
<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 2-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 5-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 $.01534 per unit per day.
Consequently, on the first Record Date (06/01/94), accrued interest will total
$0.3988 per unit for the 26-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 06/01/94 is $.3988 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01534              Quarterly - $0.01543
                             Semi-Annual - $0.01548
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.
 
- --------------------------------------------------------------------------------
 
                                                          728
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 22.9 years.
The first bond is scheduled to mature in December, 2010, 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.
 
- -------------------------------------------------
 
* 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 114
 
            Estimated Current Return
            5.60% to 5.83%
            as of 05/04/94
 
            Estimated Long Term Return
            5.73% to 5.95%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101Y 375 Monthly Payment Option
                  67101Y 383 Quarterly Payment Option
                  67101Y 391 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 114
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT MAY 5, 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>
  --------------------------------------------------------------------------------------------------------------------------
  $  525,000    Ohio Air Quality Development Authority, State of Ohio,             2004 at 102          AAA           Aaa
                  Collateralized Air Quality Development Revenue Refunding
                  Bonds, 1994 Series B (The Cincinnati Gas & Electric
                  Company Project), 5.45% Due 1/1/24.
     500,000    Ohio Air Quality Development Authority, State of Ohio,             2003 at 102          AAA           Aaa
                  Pollution Control Revenue Refunding Bonds, 1993 Series B
                  (Ohio Edison Company Project), 5.625% Due 11/15/29.
     345,000    Ohio Water Development Authority, State of Ohio,                   2002 at 102          AAA           Aaa
                  Collateralized Water Development Revenue Refunding Bonds,
                  1992 Series A (The Dayton Power and Light Company
                  Project), 6.40% Due 8/15/27.
     250,000    City of Avon Lake, Ohio, Various Purpose General Obligation        2005 at 100          AAA           Aaa
                  Bonds, Series 1994, 6.00% Due 12/1/14. (When issued.)
     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.
     130,000    Lakota Local School District, County of Butler, Ohio, School       2005 at 100          AAA           Aaa
                  Improvement Unlimited Tax General Obligation Bonds, Series
                  1994, 6.125% Due 12/1/17.
     500,000    County of Lucas, Ohio, Hospital Refunding Revenue Bonds,           2003 at 102          AAA           Aaa
                  Series 1993C (St. Vincent Medical Center), 5.375% Due
                  8/15/17.
     500,000    County of Lucas, Ohio, Hospital Improvement and Refunding          2003 at 102          AAA           Aaa
                  Revenue Bonds, Series 1993 (The Toledo Hospital), 5.00%
                  Due 11/15/22. (Original issue discount bonds delivered on
                  or about July 29, 1993 at a price of 91.402% of principal
                  amount.)
     250,000    Commonwealth of Puerto Rico, Public Improvement Refunding          2002 at 101          AAA           Aaa
                  Bonds, Series 1992A (General Obligation Bonds.), 6.00% Due           1/2
                  7/1/14.
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. 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 %   $     97.06          5.60%            5.63%            5.65%
500-999                 50,000-99,999   4.75           96.90          5.61             5.64             5.66
1,000-2,499           100,000-249,999   4.50           96.65          5.62             5.66             5.68
2,500-4,999           250,000-499,999   4.25           96.40          5.64             5.67             5.69
5,000-9,999           500,000-999,999   3.50           95.65          5.68             5.72             5.74
10,000-24,999     1,000,000-2,499,999   3.00           95.15          5.71             5.75             5.77
25,000-49,999     2,500,000-4,999,999   2.50           94.67          5.74             5.78             5.80
50,000 and over    5,000,000 and over   2.00           94.18          5.77             5.81             5.83
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
          AMOUNT PURCHASED
- -------------------------------------
                                                                         Estimated Long Term Return (3)
     Units                                                    -----------------------------------------------------
- ----------------
                                                   Public
                                       Sales      Offering          Monthly         Quarterly       Semi-Annual
                        Dollars        Charge     Price (1)         Payment          Payment          Payment
                  -------------------  ------    -----------     -------------    -------------    -------------
50-499                 $5,000-$49,999   4.90 %   $     97.06          5.73    %        5.75    %        5.77    %
500-999                 50,000-99,999   4.75           96.90          5.73             5.76             5.78
1,000-2,499           100,000-249,999   4.50           96.65          5.75             5.78             5.80
2,500-4,999           250,000-499,999   4.25           96.40          5.76             5.79             5.81
5,000-9,999           500,000-999,999   3.50           95.65          5.81             5.84             5.86
10,000-24,999     1,000,000-2,499,999   3.00           95.15          5.84             5.87             5.89
25,000-49,999     2,500,000-4,999,999   2.50           94.67          5.87             5.90             5.92
50,000 and over    5,000,000 and over   2.00           94.18          5.90             5.93             5.95
</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                                       1994                                  1995                  per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        6/1            8/1           11/1            2/1            5/1
Distribution Date.....................       6/15           8/15          11/15           2/15           5/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3926(1)                                                               $  5.4361
                                                             --------    $.4530 every month    --------
Quarterly Distribution Plan...........  $   .3926(1)   $   .9108(2)   $  1.3662      $  1.3662      $  1.3662      $  5.4681
Semi-Annual Distribution Plan.........  $   .3926(1)                  $  2.2860(3)                  $  2.7432      $  5.4871
- ---------------------------------------------------------------------------------------------------------------------------------
<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 2-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 5-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 $.01510 per unit per day.
Consequently, on the first Record Date (06/01/94), accrued interest will total
$0.3926 per unit for the 26-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 06/01/94 is $.3926 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01510              Quarterly - $0.01518
                             Semi-Annual - $0.01524
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.
 
- --------------------------------------------------------------------------------
 
                                                          728
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 27.6 years.
The first bond is scheduled to mature in July, 2014, with the last bond maturity
being November, 2029.
 
- -------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.


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