NUVEEN TAX EXEMPT UNIT TRUST SERIES 765
497, 1994-11-14
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     CONNECTICUT
     TRUST 269
              (CONNECTICUT TRADITIONAL TRUST 269)
 
            Estimated Current Return
            6.14% to 6.38%
            as of 11/09/94
 
            Estimated Long Term Return
            6.28% to 6.53%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  67094E 550 Monthly Payment Option
                  67094E 568 Quarterly Payment Option
                  67094E 576 Semi-Annual Payment Option
 
                  Registered in Connecticut
                    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--CONNECTICUT TRADITIONAL TRUST 269
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 10, 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    State of Connecticut, Special Tax Obligation Bonds,                No Optional          AA-           A1
                  Transportation Infrastructure Purposes, 1992 Series B,              Call
                  6.125% Due 9/1/12.
     525,000    State of Connecticut General Fund Obligation Bonds, 1994           2004 at 102          AA-           A1
                  Series A, Issued By Connecticut Development Authority,
                  6.375% Due 10/15/24. (General Obligation Bonds.)
     225,000    Connecticut Development Authority, Water Facilities                2004 at 102          AAA           Aaa
                  Refunding Revenue Bonds (Bridgeport Hydraulic Company
                  Project-1994A Series), 6.05% Due 3/1/29. (MBIA Insured.)
     500,000    State of Connecticut, Health and Educational Facilities            2004 at 102          AAA           Aaa
                  Authority, Revenue Bonds, New Britain General Hospital
                  Issue, Series B, 6.00% Due 7/1/24. (AMBAC Insured.)
     250,000    State of Connecticut Health and Educational Facilities             2004 at 102          AA-           A1
                  Authority, Revenue Bonds, Nursing Home Program Issue,
                  Series 1994 (St. Camillus Health Center Project), 6.25%
                  Due 11/1/18. (General Obligation Bonds.)
     300,000    State of Connecticut Health and Educational Facilities             2003 at 102          AAA           Aaa
                  Authority, Revenue Bonds, Saint Francis Hospital and
                  Medical Center Issue, Series C, 5.00% Due 7/1/23. (FGIC
                  Insured.)
     300,000    State of Connecticut, Clean Water Fund Revenue Bonds, 1994         2004 at 102          AA+           Aa
                  Series, 5.75% Due 6/1/13.
     200,000    Town of East Windsor, Connecticut, General Obligation Bonds,       No Optional          --             A
                                                                                      Call
                100M-6.90% Due 3/15/09,
                100M-6.90% Due 3/15/10.
     175,000    Town of Stafford, Connecticut, General Obligation Bonds,           No Optional          --             A
                  Issue of 1989, 6.80% Due 10/1/09.                                   Call
     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. (MBIA             1/2
                  Insured.)
  ----------
  $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 %   $     96.48          6.14%            6.17%            6.19%
500-999                 50,000-99,999   4.75           96.33          6.15             6.18             6.20
1,000-2,499           100,000-249,999   4.50           96.07          6.17             6.20             6.22
2,500-4,999           250,000-499,999   4.25           95.82          6.18             6.22             6.24
5,000-9,999           500,000-999,999   3.50           95.08          6.23             6.26             6.28
10,000-24,999     1,000,000-2,499,999   3.00           94.59          6.26             6.30             6.32
25,000-49,999     2,500,000-4,999,999   2.50           94.10          6.30             6.33             6.35
50,000 and over    5,000,000 and over   2.00           93.62          6.33             6.36             6.38
</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 %   $     96.48          6.28%            6.32%            6.33%
500-999                 50,000-99,999   4.75           96.33          6.28             6.32             6.34
1,000-2,499           100,000-249,999   4.50           96.07          6.30             6.34             6.36
2,500-4,999           250,000-499,999   4.25           95.82          6.32             6.35             6.37
5,000-9,999           500,000-999,999   3.50           95.08          6.37             6.41             6.43
10,000-24,999     1,000,000-2,499,999   3.00           94.59          6.40             6.44             6.46
25,000-49,999     2,500,000-4,999,999   2.50           94.10          6.44             6.47             6.49
50,000 and over    5,000,000 and over   2.00           93.62          6.47             6.51             6.53
</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
Connecticut Traditional Trust             1994                                  1995                                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................       12/1            2/1            5/1            8/1           11/1
Distribution Date.....................      12/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3454(1)                                                               $  5.9237
                                                             --------    $.4935 every month    --------
Quarterly Distribution Plan...........  $   .3454(1)   $   .9924(2)   $  1.4886      $  1.4886      $  1.4886      $  5.9557
Semi-Annual Distribution Plan.........  $   .3454(1)                  $  2.4885(3)                  $  2.9862      $  5.9747
- ---------------------------------------------------------------------------------------------------------------------------------
<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 $.13 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 $.01645 per unit per day.
Consequently, on the first Record Date (12/01/94), accrued interest will total
$0.3454 per unit for the 21-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 12/01/94 is $.3454 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01645              Quarterly - $0.01654
                             Semi-Annual - $0.01659
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.
 
- --------------------------------------------------------------------------------
 
                                                          765
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 25.1 years.
The first bond is scheduled to mature in March, 2009, with the last bond
maturity being March, 2029.
 
- -------------------------------------------------------
 
QUALITY OF PORTFOLIO AS RATED BY
STANDARD & POOR'S CORPORATION
OR MOODY'S INVESTORS SERVICES
- -------------------------------------------------------
 
<TABLE>
<S>                       <C>                    <C>
Rating                    Percent of Portfolio
Category                  Par Value
- --------------------------------------------------------------------
AAA                           44%
AA                            45
A                             11
                             ---
                             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.
 
- -------------------------------------------------------
 
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.
 
- -------------------------------------------------------
 
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
     VIRGINIA
     TRUST 294
              (VIRGINIA TRADITIONAL TRUST 294)
 
            Estimated Current Return
            First
            Year: 6.22% to 6.46%
            Subsequent
            Years: 6.23% to 6.48%
            as of 11/09/94
 
            Estimated Long Term Return
            6.43% to 6.68%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  6706L5 523 Monthly Payment Option
                  6706L5 531 Quarterly Payment Option
                  6706L5 549 Semi-Annual Payment Option
 
                  Registered in Virginia
                    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--VIRGINIA TRADITIONAL TRUST 294
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 10, 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>
  --------------------------------------------------------------------------------------------------------------------------
  $  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. (MBIA             1/2
                  Insured.)
     425,000    Virginia College Building Authority, Educational Facilities        2003 at 102          A+            --
                  Revenue Refunding Bonds (Hampton University Project),
                  Series of 1993, 5.75% Due 4/1/14.
     525,000    Blacksburg-Virginia Polytechnic Institute Sanitation               2004 at 102           A           Baa1
                  Authority (Virginia), Sewer System Revenue Bonds, Series
                  of 1994, 6.60% Due 11/1/11.
     500,000    Industrial Development Authority of Covington-Alleghany            2004 at 102           A            A1
                  County, Virginia, Pollution Control Facilities Refunding
                  Revenue Bonds (Westvaco Corporation Project), Series 1994,
                  6.65% Due 9/1/18.
     500,000    City of Norfolk, Virginia, Water Revenue Bonds, Series 1993,       2003 at 102          AAA           Aaa
                  5.25% Due 11/1/13. (AMBAC Insured.)
     250,000    Pittsylvania County, Virginia, General Obligation Public           2004 at 102           A             A
                  Improvement Bonds, Series of 1994, 6.00% Due 7/1/14.
     325,000    Industrial Development Authority of the City of Roanoke,           No Optional          AAA           Aaa
                  Virginia, Hospital Revenue Refunding Bonds (Roanoke                 Call
                  Memorial Hospitals, Community Hospital of Roanoke Valley
                  and Franklin Memorial Hospital Project), Series 1992B,
                  6.125% Due 7/1/17. (MBIA Insured.)
     500,000    Industrial Development Authority of the City of Winchester         2004 at 102          AA            --
                  (Virginia), Educational Facilities First Mortgage Revenue
                  Bonds (Shenandoah University Project), Series 1994, 6.70%
                  Due 10/1/14. (ASSET GUARANTEED.)
  ----------
  $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 %   $     96.07     (6.22%)  6.23%     (6.25%)  6.26%     (6.27%)  6.28%
500-999                 50,000-99,999   4.75           95.92     (6.23)   6.24      (6.26)   6.27      (6.28)   6.29
1,000-2,499           100,000-249,999   4.50           95.66     (6.25)   6.26      (6.28)   6.29      (6.30)   6.31
2,500-4,999           250,000-499,999   4.25           95.42     (6.26)   6.27      (6.30)   6.31      (6.32)   6.33
5,000-9,999           500,000-999,999   3.50           94.67     (6.31)   6.32      (6.35)   6.36      (6.37)   6.38
10,000-24,999     1,000,000-2,499,999   3.00           94.19     (6.34)   6.36      (6.38)   6.39      (6.40)   6.41
25,000-49,999     2,500,000-4,999,999   2.50           93.70     (6.38)   6.39      (6.41)   6.42      (6.43)   6.44
50,000 and over    5,000,000 and over   2.00           93.22     (6.41)   6.42      (6.44)   6.46      (6.46)   6.48
</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 %   $     96.07          6.43%            6.47%            6.49%
500-999                 50,000-99,999   4.75           95.92          6.44             6.47             6.49
1,000-2,499           100,000-249,999   4.50           95.66          6.46             6.49             6.51
2,500-4,999           250,000-499,999   4.25           95.42          6.47             6.51             6.53
5,000-9,999           500,000-999,999   3.50           94.67          6.52             6.56             6.58
10,000-24,999     1,000,000-2,499,999   3.00           94.19          6.56             6.60             6.62
25,000-49,999     2,500,000-4,999,999   2.50           93.70          6.59             6.63             6.65
50,000 and over    5,000,000 and over   2.00           93.22          6.63             6.66             6.68
</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
Virginia Traditional Trust                1994                                  1995                                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................       12/1            2/1            5/1            8/1           11/1
Distribution Date.....................      12/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3490(1)                                                               $  5.9866
                                                             --------    $.4986 every month    --------
Quarterly Distribution Plan...........  $   .3490(1)   $  1.0026(2)   $  1.5039      $  1.5039      $  1.5039      $  6.0186
Semi-Annual Distribution Plan.........  $   .3490(1)                  $  2.5155(3)                  $  3.0186      $  6.0376
- ---------------------------------------------------------------------------------------------------------------------------------
<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 $.13 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 $.01662 per unit per day.
Consequently, on the first Record Date (12/01/94), accrued interest will total
$0.3490 per unit for the 21-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 12/01/94 is $.3490 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01662              Quarterly - $0.01671
                             Semi-Annual - $0.01677
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.
 
- --------------------------------------------------------------------------------
 
                                                          765
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 21.2 years.
The first bond is scheduled to mature in November, 2011, with the last bond
maturity being July, 2023.
 
- -------------------------------------------------------
 
QUALITY OF PORTFOLIO AS RATED BY
STANDARD & POOR'S CORPORATION
OR MOODY'S INVESTORS SERVICES
- -------------------------------------------------------
 
<TABLE>
<S>                       <C>                    <C>
Rating                    Percent of Portfolio
Category                  Par Value
- --------------------------------------------------------------------
AAA                           37%
AA                            14
A1/A+                         27
A                             22
                             ---
                             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.
 
- -------------------------------------------------------
 
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.
 
- -------------------------------------------------------
 
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
     NATIONAL
     INSURED
     TRUST 282
 
            Estimated Current Return
            First
            Year: 6.35% to 6.60%
            Subsequent
            Years: 6.36% to 6.61%
            as of 11/09/94
 
            Estimated Long Term Return
            6.51% to 6.77%
             75,000 units in a
             diversified $7,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6710A3 340 Monthly Payment Option
                  6710A3 357 Quarterly Payment Option
                  6710A3 365 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, NATIONAL INSURED TRUST 282
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 10, 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    Illinois Health Facilities Authority Revenue Bonds, Series         2004 at 102          AAA           Aaa
                  1994A (The University of Chicago Hospitals Project),
                  6.125% Due 8/15/26.
   1,000,000    Metropolitan Pier and Exposition Authority (Illinois),             2003 at 102          AAA           Aaa
                  McCormick Place Expansion Project Bonds, Series 1992A,
                  6.50% Due 6/15/27.
     500,000    Massachusetts Water Pollution Abatement Trust, Water               2004 at 102          AAA           Aaa
                  Pollution Abatement Revenue Bonds (SESD Loan Program),
                  1994 Series A, 6.375% Due 2/1/15.
     750,000    South Essex Sewerage District, Massachusetts, General              2004 at 102          AAA           Aaa
                  Obligation Sewer Bonds, 1994 Series B, 7.00% Due 6/1/24.
                  (When issued.)
     750,000    The Pollution Control Financing Authority of Salem County          2004 at 102          AAA           Aaa
                  (New Jersey), Pollution Control Revenue Refunding Bonds,
                  1994 Series D (Public Service Electric and Gas Company
                  Project), 6.55% Due 10/1/29.
     750,000    Dormitory Authority of the State of New York, State                2003 at 102          AAA           Aaa
                  University Educational Facilities Revenue Bonds, Series
                  1992A, 6.00% Due 5/15/22. (Original issue discount bonds
                  delivered on or about December 30, 1992 at a price of
                  92.25% of principal amount.)
     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.
     750,000    Harris County Health Facilities (Texas), Development               2004 at 101          AAA           Aaa
                  Corporation Hospital Revenue Bonds (Hermann Hospital),
                  Series 1994, 6.375% Due 10/1/24.
     750,000    Washington Public Power Supply System, Nuclear Project No. 2       2003 at 102          AAA           Aaa
                  Refunding Revenue Bonds, Series 1993A, 5.75% Due 7/1/12.
     750,000    Wisconsin Health and Educational Facilities Authority              2003 at 102          AAA           Aaa
                  Revenue Bonds, Series 1993 (Aurora Health Care Obligated
                  Group), 5.25% Due 8/15/23. (Original issue discount bonds
                  delivered on or about December 8, 1993 at a price of
                  92.911% of principal amount.)
  ----------
  $7,500,000
  ----------
  ----------
</TABLE>
 
- --------------------------------------------------------------------------------
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 %   $     93.31     (6.35%)  6.36%     (6.39%)  6.40%     (6.41%)  6.42%
500-999                 50,000-99,999   4.75           93.17     (6.36)   6.37      (6.40)   6.41      (6.42)   6.43
1,000-2,499           100,000-249,999   4.50           92.92     (6.38)   6.39      (6.41)   6.42      (6.44)   6.44
2,500-4,999           250,000-499,999   4.25           92.68     (6.40)   6.40      (6.43)   6.44      (6.45)   6.46
5,000-9,999           500,000-999,999   3.50           91.96     (6.45)   6.45      (6.48)   6.49      (6.50)   6.51
10,000-24,999     1,000,000-2,499,999   3.00           91.48     (6.48)   6.49      (6.52)   6.52      (6.54)   6.54
25,000-49,999     2,500,000-4,999,999   2.50           91.02     (6.51)   6.52      (6.55)   6.56      (6.57)   6.58
50,000 and over    5,000,000 and over   2.00           90.55     (6.55)   6.56      (6.58)   6.59      (6.60)   6.61
</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 %   $     93.31          6.51%            6.55%            6.57%
500-999                 50,000-99,999   4.75           93.17          6.52             6.56             6.58
1,000-2,499           100,000-249,999   4.50           92.92          6.54             6.58             6.60
2,500-4,999           250,000-499,999   4.25           92.68          6.56             6.59             6.61
5,000-9,999           500,000-999,999   3.50           91.96          6.61             6.65             6.67
10,000-24,999     1,000,000-2,499,999   3.00           91.48          6.65             6.68             6.70
25,000-49,999     2,500,000-4,999,999   2.50           91.02          6.68             6.72             6.74
50,000 and over    5,000,000 and over   2.00           90.55          6.71             6.75             6.77
</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 Insured Trust                    1994                                  1995                                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................       12/1            2/1            5/1            8/1           11/1
Distribution Date.....................      12/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3460(1)                                                               $  5.9358
                                                             --------    $.4944 every month    --------
Quarterly Distribution Plan...........  $   .3460(1)   $   .9942(2)   $  1.4913      $  1.4913      $  1.4913      $  5.9678
Semi-Annual Distribution Plan.........  $   .3460(1)                  $  2.4930(3)                  $  2.9916      $  5.9868
- ---------------------------------------------------------------------------------------------------------------------------------
<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.
</TABLE>
<PAGE>
<TABLE>
<S>         <C>
(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 $.13 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 $.01648 per unit per day.
Consequently, on the first Record Date (12/01/94), accrued interest will total
$0.3460 per unit for the 21-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 12/01/94 is $.3460 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01648              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.
 
- --------------------------------------------------------------------------------
<PAGE>
- -------------------------------------------------
 
DIVERSIFICATION OF PORTFOLIO INCOME
 
There are 10 Tax-exempt bond issues in this trust; this diversified portfolio
yields current income from issuers in 8 states.
- -------------------------------------------------------
<TABLE>
<CAPTION>
                   Percent
                   of Total
                   Income
<S>                    <C>        <C>
- ------------------------
                                  %
Illinois                    24.1
Massachusetts               18.3
New Jersey                  10.6
New York                     9.7
 
<CAPTION>
                   Percent
                   of Total
                   Income
- ------------------------
<S>                    <C>        <C>
                                  %
Pennsylvania                 9.1
Texas                       10.4
Washington                   9.3
Wisconsin                    8.5
</TABLE>
 
- -------------------------------------------------
 
AVERAGE PORTFOLIO LIFE The average maturity
of portfolio bonds is 28.6 years. The first bond is scheduled to mature in July,
2012, with the last bond maturity being October, 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.
 
- -------------------------------------------------
 
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.
 
765
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     PENNSYLVANIA
     INSURED
     TRUST 189
 
            Estimated Current Return
            6.25% to 6.49%
            as of 11/09/94
 
            Estimated Long Term Return
            6.46% to 6.70%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706H9 678 Monthly Payment Option
                  6706H9 686 Quarterly Payment Option
                  6706H9 694 Semi-Annual Payment Option
 
                  Registered in Pennsylvania & Florida
                    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, PENNSYLVANIA INSURED TRUST 189
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 10, 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    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.
     500,000    Allegheny County Hospital Development Authority                    2002 at 100          AAA           Aaa
                  (Pennsylvania), Health Center Revenue Bonds, Series 1992A
                  (Presbyterian University Health System, Inc. Project),
                  6.25% Due 11/1/23.
     500,000    Lehigh County Industrial Development Authority, Pollution          2004 at 102          AAA           Aaa
                  Control Revenue Refunding Bonds, 1994 Series B
                  (Pennsylvania Power & Light Company Project), 6.40% Due
                  9/1/29.
     500,000    Northampton County Higher Education Authority                      2002 at 102          AAA           Aaa
                  (Pennsylvania), University Revenue Bonds (Lehigh
                  University), Series A of 1993, 5.75% Due 11/15/18.
     500,000    City of Philadelphia, Pennsylvania, Water and Wastewater           2003 at 102          AAA           Aaa
                  Revenue Bonds, Series 1993, 5.75% Due 6/15/13.
     500,000    Sewickley Valley Hospital Authority (Allegheny County,             2003 at 102          AAA           Aaa
                  Pennsylvania), Hospital Revenue Refunding Bonds, Series
                  1993A (Sewickley Valley Hospital Project), 5.75% Due
                  10/15/16.
     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 %   $     92.32          6.25%            6.28%            6.30%
500-999                 50,000-99,999   4.75           92.18          6.26             6.29             6.31
1,000-2,499           100,000-249,999   4.50           91.94          6.27             6.31             6.33
2,500-4,999           250,000-499,999   4.25           91.70          6.29             6.32             6.35
5,000-9,999           500,000-999,999   3.50           90.98          6.34             6.37             6.40
10,000-24,999     1,000,000-2,499,999   3.00           90.52          6.37             6.41             6.43
25,000-49,999     2,500,000-4,999,999   2.50           90.05          6.40             6.44             6.46
50,000 and over    5,000,000 and over   2.00           89.59          6.44             6.47             6.49
</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 %   $     92.32          6.46%            6.49%            6.51%
500-999                 50,000-99,999   4.75           92.18          6.46             6.49             6.51
1,000-2,499           100,000-249,999   4.50           91.94          6.48             6.51             6.53
2,500-4,999           250,000-499,999   4.25           91.70          6.50             6.53             6.55
5,000-9,999           500,000-999,999   3.50           90.98          6.55             6.58             6.60
10,000-24,999     1,000,000-2,499,999   3.00           90.52          6.59             6.62             6.64
25,000-49,999     2,500,000-4,999,999   2.50           90.05          6.62             6.65             6.67
50,000 and over    5,000,000 and over   2.00           89.59          6.65             6.68             6.70
</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
Pennsylvania Insured Trust                1994                                  1995                                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................       12/1            2/1            5/1            8/1           11/1
Distribution Date.....................      12/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3364(1)                                                               $  5.7675
                                                             --------    $.4806 every month    --------
Quarterly Distribution Plan...........  $   .3364(1)   $   .9660(2)   $  1.4490      $  1.4490      $  1.4490      $  5.7995
Semi-Annual Distribution Plan.........  $   .3364(1)                  $  2.4240(3)                  $  2.9088      $  5.8185
- ---------------------------------------------------------------------------------------------------------------------------------
<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 $.13 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 $.01602 per unit per day.
Consequently, on the first Record Date (12/01/94), accrued interest will total
$0.3364 per unit for the 21-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 12/01/94 is $.3364 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01602              Quarterly - $0.01610
                             Semi-Annual - $0.01616
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.
 
- --------------------------------------------------------------------------------
 
                                                          765
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.5 years.
The first bond is scheduled to mature in June, 2013, with the last bond maturity
being September, 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.
 
- -------------------------------------------------------
 
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.


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