NUVEEN TAX EXEMPT UNIT TRUST SERIES 780
497, 1995-01-25
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     CONNECTICUT
     TRUST 271
              (CONNECTICUT TRADITIONAL TRUST 271)
 
            Estimated Current Return
            5.88% to 6.11%
            as of 01/23/95
 
            Estimated Long Term Return
            5.88% to 6.11%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  67094E 618 Monthly Payment Option
                  67094E 626 Quarterly Payment Option
                  67094E 634 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 271
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JANUARY 24, 1995
- --------------------------------------------------------------------------------
 
<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, Clean Water Fund Revenue Bonds, 1994         2004 at 102          AA+           Aa
                  Series, 5.80% Due 6/1/16.
     500,000    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.)
     250,000    Connecticut Development Authority, Governmental Lease              2004 at 102          AAA           Aaa
                  Revenue Bonds, Series 1994, 6.60% Due 6/15/14. (MBIA
                  Insured.)
     500,000    State of Connecticut, Health and Educational Facilities            2004 at 101          AAA           Aaa
                  Authority, Revenue Bonds, Choate Rosemary Hall Issue,
                  Series A, 7.00% Due 7/1/25. (MBIA Insured.)
     320,000    State of Connecticut, Health and Educational Facilities            2004 at 102          AAA           Aaa
                  Authority, Revenue Bonds, New Britain General Hospital
                  Issue, Series B,
                100M-6.125% Due 7/1/14,
                220M-6.00% Due 7/1/24.
                  (AMBAC Insured.)
     500,000    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.)
     500,000    State of Connecticut, Health and Educational Facilities            2004 at 102          AA-           A1
                  Authority, Revenue Bonds, Nursing Home Program Issue,
                  Series 1994 (AHF/Windsor, Inc. Project), 7.125% Due
                  11/1/24. (General Obligation Bonds.)
     120,000    Town of Trumbull, Connecticut, General Obligation Bonds,           2004 at 101          AA            Aa
                  6.15% Due 4/15/10.
     310,000    Town of Woodstock, Connecticut, General Obligation Bonds,          2004 at 102          AAA           Aaa
                  6.00% Due 2/15/11. (FGIC 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 %   $    101.48          5.88%            5.91%            5.93%
500-999                 50,000-99,999   4.75          101.32          5.89             5.92             5.94
1,000-2,499           100,000-249,999   4.50          101.06          5.90             5.93             5.95
2,500-4,999           250,000-499,999   4.25          100.79          5.92             5.95             5.97
5,000-9,999           500,000-999,999   3.50          100.01          5.96             6.00             6.01
10,000-24,999     1,000,000- 2,499,999  3.00           99.50          5.99             6.03             6.05
25,000-49,999     2,500,000- 4,999,999  2.50           98.98          6.03             6.06             6.08
50,000 and over    5,000,000 and over   2.00           98.48          6.06             6.09             6.11
</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 %   $    101.48          5.88%            5.91%            5.93%
500-999                 50,000-99,999   4.75          101.32          5.88             5.91             5.93
1,000-2,499           100,000-249,999   4.50          101.06          5.90             5.93             5.95
2,500-4,999           250,000-499,999   4.25          100.79          5.91             5.94             5.96
5,000-9,999           500,000-999,999   3.50          100.01          5.96             5.99             6.01
10,000-24,999     1,000,000- 2,499,999  3.00           99.50          6.00             6.02             6.04
25,000-49,999     2,500,000- 4,999,999  2.50           98.98          6.03             6.06             6.07
50,000 and over    5,000,000 and over   2.00           98.48          6.06             6.09             6.11
</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                                     1995                              per Year +
<S>                                     <C>            <C>            <C>            <C>        <C>
- ------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        3/1            5/1            8/1           11/1
Distribution Date.....................       3/15           5/15           8/15          11/15
- ----------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .6127(1)                                              $  5.9640
                                                        --------  $.4968 every month  --------
Quarterly Distribution Plan...........  $   .6127(1)   $   .9990(2)   $  1.4985      $  1.4985    $  5.9960
Semi-Annual Distribution Plan.........  $   .6127(1)   $  1.0020(3)                  $  3.0060    $  6.0150
- ----------------------------------------------------------------------------------------------------------------
<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 2-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.12 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01656 per unit per day.
Consequently, on the first Record Date (03/01/95), accrued interest will total
$0.6127 per unit for the 37-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 03/01/95 is $.6127 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01656              Quarterly - $0.01665
                             Semi-Annual - $0.01670
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.
 
- --------------------------------------------------------------------------------
 
                                                          780
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.3 years.
The first bond is scheduled to mature in April, 2010, 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                           68%
AA                            32
                             ---
                             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
     NEW JERSEY
     INSURED
     TRUST 186
 
            Estimated Current Return
            5.81% to 6.04%
            as of 01/23/95
 
            Estimated Long Term Return
            5.92% to 6.15%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706L6 612 Monthly Payment Option
                  6706L6 620 Quarterly Payment Option
                  6706L6 638 Semi-Annual Payment Option
 
                  Registered in New Jersey
                    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, NEW JERSEY INSURED TRUST 186
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JANUARY 24, 1995
- --------------------------------------------------------------------------------
 
<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    New Jersey Educational Facilities Authority, Revenue Bonds,        2003 at 102          AAA           Aaa
                  Rowan College of New Jersey Issue, Series 1993 A, 5.75%
                  Due 7/1/23.
     500,000    New Jersey Health Care Facilities Financing Authority,             2004 at 102          AAA           Aaa
                  Revenue Bonds, Dover General Hospital and Medical Center
                  Issue, Series 1994, 5.875% Due 7/1/12.
     500,000    New Jersey Health Care Facilities Financing Authority,             2004 at 102          AAA           Aaa
                  Refunding Revenue Bonds, Wayne General Hospital, Corp.
                  Issue (FHA Insured Mortgage), Series B, 5.875% Due 8/1/18.
     500,000    The Port Authority of New York and New Jersey, Consolidated        2004 at 101          AAA           Aaa
                  Bonds, Ninety-Second Series, 5.625% Due 7/15/20.
     500,000    Gloucester County Utilities Authority (Gloucester County,          2004 at 102          AAA           Aaa
                  New Jersey), Sewer Revenue Bonds, 1994 Series, 6.25% Due
                  1/1/24. (General Obligation Bonds.)
     500,000    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.
     500,000    The Board of Education of the Township of South Brunswick,         2005 at 100          AAA           Aaa
                  in the County of Middlesex, New Jersey, General Obligation
                  School Bonds, 6.40% Due 8/1/24. (When issued.)
  ----------
  $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 %   $     99.98          5.81%            5.84%            5.86%
500-999                 50,000-99,999   4.75           99.82          5.82             5.85             5.87
1,000-2,499           100,000-249,999   4.50           99.56          5.84             5.87             5.89
2,500-4,999           250,000-499,999   4.25           99.30          5.85             5.88             5.90
5,000-9,999           500,000-999,999   3.50           98.53          5.90             5.93             5.95
10,000-24,999     1,000,000- 2,499,999  3.00           98.02          5.93             5.96             5.98
25,000-49,999     2,500,000- 4,999,999  2.50           97.52          5.96             5.99             6.01
50,000 and over    5,000,000 and over   2.00           97.02          5.99             6.02             6.04
</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 %   $     99.98          5.92%            5.94%            5.96%
500-999                 50,000-99,999   4.75           99.82          5.92             5.95             5.97
1,000-2,499           100,000-249,999   4.50           99.56          5.94             5.97             5.99
2,500-4,999           250,000-499,999   4.25           99.30          5.95             5.98             6.00
5,000-9,999           500,000-999,999   3.50           98.53          6.00             6.03             6.05
10,000-24,999     1,000,000- 2,499,999  3.00           98.02          6.03             6.06             6.08
25,000-49,999     2,500,000- 4,999,999  2.50           97.52          6.07             6.09             6.11
50,000 and over    5,000,000 and over   2.00           97.02          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 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
New Jersey Insured Trust                                          1995                              per Year +
<S>                                     <C>            <C>            <C>            <C>        <C>
- ------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        3/1            5/1            8/1           11/1
Distribution Date.....................       3/15           5/15           8/15          11/15
- ----------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .5971(1)                                              $  5.8117
                                                        --------  $.4842 every month  --------
Quarterly Distribution Plan...........  $   .5971(1)   $   .9738(2)   $  1.4607      $  1.4607    $  5.8437
Semi-Annual Distribution Plan.........  $   .5971(1)   $   .9768(3)                  $  2.9304    $  5.8627
- ----------------------------------------------------------------------------------------------------------------
<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 2-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 $.01614 per unit per day.
Consequently, on the first Record Date (03/01/95), accrued interest will total
$0.5971 per unit for the 37-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 03/01/95 is $.5971 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01614              Quarterly - $0.01623
                             Semi-Annual - $0.01628
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.
 
- --------------------------------------------------------------------------------
 
                                                          780
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.9 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.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     NEW YORK
     INSURED
     TRUST 230
 
            Estimated Current Return
            6.00% to 6.24%
            as of 01/23/95
 
            Estimated Long Term Return
            6.05% to 6.28%
             40,000 units in a
             diversified $4,000,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101K 193 Monthly Payment Option
                  67101K 201 Quarterly Payment Option
                  67101K 219 Semi-Annual Payment Option
 
                  Registered in New York, Connecticut & 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, NEW YORK INSURED TRUST 230
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JANUARY 24, 1995
- --------------------------------------------------------------------------------
 
<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>
  --------------------------------------------------------------------------------------------------------------------------
  $  600,000    Dormitory Authority of the State of New York, City                 2004 at 102          AAA           Aaa
                  University System Consolidated, Third General Resolution
                  Revenue Bonds, 1994 Series 2, 6.75% Due 7/1/24.
     500,000    Dormitory Authority of the State of New York, Leake and            2004 at 102          AAA           Aaa
                  Watts Services, Inc., Insured Revenue Bonds, Series 1994,
                  6.00% Due 7/1/23.
     500,000    Dormitory Authority of the State of New York, State                2004 at 102          AAA           Aaa
                  University Educational Facilities Revenue Bonds, Series
                  1993 C, 5.375% Due 5/15/13.
     500,000    New York State Energy Research and Development Authority,          2004 at 102          AAA           Aaa
                  Pollution Control Refunding Revenue Bonds (New York State
                  Electric & Gas Corporation Project), 1994 Series A, 6.05%
                  Due 4/1/34.
     600,000    New York State Medical Care Facilities Finance Agency, New         2005 at 102          AAA           Aaa
                  York Hospital FHA-Insured Mortgage Revenue Bonds, 1994
                  Series A, 6.80% Due 8/15/24.
     500,000    New York State Urban Development Corporation, Correctional         No Optional          AAA           Aaa
                  Facilities Revenue Bonds, 1993A Refunding Series, 5.50%             Call
                  Due 1/1/14.
     600,000    The City of New York, General Obligation Bonds, Fiscal 1995        2004 at 101          AAA           Aaa
                  Series B, 7.25% Due 8/15/19.
     200,000    New York City (New York), Municipal Water Finance Authority,       2004 at 101          AAA           Aaa
                  Water and Sewer System Revenue Bonds, Fixed Rate Fiscal              1/2
                  1994 Series F, 5.75% Due 6/15/20.
  ----------
  $4,000,000
  ----------
  ----------
</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 %   $    100.61          6.00%            6.03%            6.05%
500-999                 50,000-99,999   4.75          100.45          6.01             6.04             6.06
1,000-2,499           100,000-249,999   4.50          100.19          6.03             6.06             6.08
2,500-4,999           250,000-499,999   4.25           99.93          6.04             6.08             6.09
5,000-9,999           500,000-999,999   3.50           99.15          6.09             6.12             6.14
10,000-24,999     1,000,000- 2,499,999  3.00           98.64          6.12             6.16             6.17
25,000-49,999     2,500,000- 4,999,999  2.50           98.13          6.15             6.19             6.21
50,000 and over    5,000,000 and over   2.00           97.63          6.19             6.22             6.24
</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 %   $    100.61          6.05%            6.08%            6.10%
500-999                 50,000-99,999   4.75          100.45          6.06             6.08             6.10
1,000-2,499           100,000-249,999   4.50          100.19          6.07             6.10             6.12
2,500-4,999           250,000-499,999   4.25           99.93          6.09             6.12             6.13
5,000-9,999           500,000-999,999   3.50           99.15          6.14             6.17             6.19
10,000-24,999     1,000,000- 2,499,999  3.00           98.64          6.17             6.20             6.22
25,000-49,999     2,500,000- 4,999,999  2.50           98.13          6.20             6.23             6.25
50,000 and over    5,000,000 and over   2.00           97.63          6.23             6.26             6.28
</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
New York Insured Trust                                            1995                              per Year +
<S>                                     <C>            <C>            <C>            <C>        <C>
- ------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        3/1            5/1            8/1           11/1
Distribution Date.....................       3/15           5/15           8/15          11/15
- ----------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .6204(1)                                              $  6.0396
                                                        --------  $.5031 every month  --------
Quarterly Distribution Plan...........  $   .6204(1)   $  1.0116(2)   $  1.5174      $  1.5174    $  6.0716
Semi-Annual Distribution Plan.........  $   .6204(1)   $  1.0146(3)                  $  3.0438    $  6.0906
- ----------------------------------------------------------------------------------------------------------------
<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 2-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.12 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01677 per unit per day.
Consequently, on the first Record Date (03/01/95), accrued interest will total
$0.6204 per unit for the 37-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 03/01/95 is $.6204 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01677              Quarterly - $0.01686
                             Semi-Annual - $0.01691
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.
 
- --------------------------------------------------------------------------------
 
                                                          780
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.9 years.
The first bond is scheduled to mature in May, 2013, with the last bond maturity
being April, 2034.
 
- -------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     PENNSYLVANIA
     INSURED
     TRUST 193
 
            Estimated Current Return
            5.95% to 6.18%
            as of 01/23/95
 
            Estimated Long Term Return
            5.99% to 6.22%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706H9 793 Monthly Payment Option
                  6706H9 801 Quarterly Payment Option
                  6706H9 819 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 193
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JANUARY 24, 1995
- --------------------------------------------------------------------------------
 
<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    Allegheny County Hospital Development Authority,                   2003 at 102          AAA           Aaa
                  Pennsylvania, Hospital Revenue Bonds, Series 1993
                  (Magee-Womens Hospital), 5.625% Due 10/1/23.
     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    Montgomery County Higher Education and Health Authority,           2002 at 102          AAA           Aaa
                  Montgomery County, Pennsylvania, Saint Joseph's University
                  Revenue Bonds, Series of 1992, 6.50% Due 12/15/22.
     500,000    North Wales Water Authority (Montgomery County,                    2004 at 100          AAA           Aaa
                  Pennsylvania), Water Revenue Bonds, Series of 1994, 6.75%
                  Due 11/1/17.
     500,000    The Hospitals and Higher Education Facilities Authority of         2003 at 102          AAA           Aaa
                  Philadelphia, Pennsylvania, Hospital Revenue Refunding
                  Bonds (The Children's Hospital of Philadelphia Project),
                  Series A of 1993, 5.00% Due 2/15/21. (Original issue
                  discount bonds delivered on or about June 29, 1993 at a
                  price of 89.369% of principal amount.)
     500,000    Scranton-Lackawanna Health and Welfare Authority, City of          2003 at 100          AAA           Aaa
                  Scranton, Lackawanna County, Pennsylvania, University
                  Revenue Bonds, Series of 1994 (University of Scranton
                  Project), 6.80% Due 11/1/14.
     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 %   $    100.76          5.95%            5.98%            6.00%
500-999                 50,000-99,999   4.75          100.60          5.96             5.99             6.01
1,000-2,499           100,000-249,999   4.50          100.34          5.97             6.01             6.02
2,500-4,999           250,000-499,999   4.25          100.07          5.99             6.02             6.04
5,000-9,999           500,000-999,999   3.50           99.30          6.04             6.07             6.09
10,000-24,999     1,000,000- 2,499,999  3.00           98.78          6.07             6.10             6.12
25,000-49,999     2,500,000- 4,999,999  2.50           98.28          6.10             6.13             6.15
50,000 and over    5,000,000 and over   2.00           97.78          6.13             6.16             6.18
</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 %   $    100.76          5.99%            6.03%            6.04%
500-999                 50,000-99,999   4.75          100.60          6.00             6.04             6.05
1,000-2,499           100,000-249,999   4.50          100.34          6.02             6.06             6.06
2,500-4,999           250,000-499,999   4.25          100.07          6.03             6.07             6.08
5,000-9,999           500,000-999,999   3.50           99.30          6.08             6.12             6.13
10,000-24,999     1,000,000- 2,499,999  3.00           98.78          6.11             6.15             6.16
25,000-49,999     2,500,000- 4,999,999  2.50           98.28          6.14             6.18             6.19
50,000 and over    5,000,000 and over   2.00           97.78          6.17             6.21             6.22
</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                                        1995                              per Year +
<S>                                     <C>            <C>            <C>            <C>        <C>
- ------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        3/1            5/1            8/1           11/1
Distribution Date.....................       3/15           5/15           8/15          11/15
- ----------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .6160(1)                                              $  5.9942
                                                        --------  $.4995 every month  --------
Quarterly Distribution Plan...........  $   .6160(1)   $  1.0038(2)   $  1.5057      $  1.5057    $  6.0262
Semi-Annual Distribution Plan.........  $   .6160(1)   $  1.0074(3)                  $  3.0222    $  6.0452
- ----------------------------------------------------------------------------------------------------------------
<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 2-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.12 of accrued
interest that will be added to the Public Offering Price on the Settlement Date.
After provision for expenses of the Fund, the daily rate of accrual from the
Date of Deposit to the first Record Date is $.01665 per unit per day.
Consequently, on the first Record Date (03/01/95), accrued interest will total
$0.6160 per unit for the 37-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 03/01/95 is $.6160 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01665              Quarterly - $0.01673
                             Semi-Annual - $0.01679
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.
 
- --------------------------------------------------------------------------------
 
                                                          780
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.9 years.
The first bond is scheduled to mature in November, 2014, 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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