NUVEEN TAX EXEMPT UNIT TRUST SERIES 768
497, 1994-11-23
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     CALIFORNIA
     INSURED
     TRUST 236
 
            Estimated Current Return
            6.40% to 6.65%
            as of 11/21/94
 
            Estimated Long Term Return
            6.55% to 6.81%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67064U 550 Monthly Payment Option
                  67064U 568 Quarterly Payment Option
                  67064U 576 Semi-Annual Payment Option
 
                  Registered in California
                    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, CALIFORNIA INSURED TRUST 236
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 22, 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    California Statewide Communities Development Authority,            2004 at 102          AAA           Aaa
                  Certificates of Participation, Sharp Healthcare Obligated
                  Group, 6.00% Due 8/15/24.
     500,000    State Public Works Board of the State of California, Lease         2004 at 102          AAA           Aaa
                  Revenue Bonds (Department of Corrections), 1994 Series A
                  (California State Prison-Monterey County (Soledad II)),
                  7.00% Due 11/1/19.
     500,000    Castaic Lake Water Agency (California), Refunding Revenue          2004 at 102          AAA           Aaa
                  Certificates of Participation (Water System Improvement
                  Projects), Series 1994A, 6.30% Due 8/1/20.
     500,000    Department of Water and Power of The City of Los Angeles           2003 at 102          AAA           Aaa
                  (California), Electric Plant Refunding Revenue Bonds,
                  Issue of 1993, 5.875% Due 9/1/30.
     500,000    Otay Water District (California), Water Revenue Certificates       2004 at 102          AAA           Aaa
                  of Participation (1993 Water Facilities Project), 5.70%
                  Due 9/1/23.
     500,000    San Diego Regional Building Authority (California),                2003 at 102          AAA           Aaa
                  Refunding Lease Revenue Bonds, Series 1993A (San Miguel
                  Consolidated Fire Protection District Project), 5.65% Due
                  1/1/20.
     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 %   $     92.14          6.40%            6.44%            6.46%
500-999                 50,000-99,999   4.75           92.00          6.41             6.45             6.47
1,000-2,499           100,000-249,999   4.50           91.76          6.43             6.46             6.48
2,500-4,999           250,000-499,999   4.25           91.52          6.44             6.48             6.50
5,000-9,999           500,000-999,999   3.50           90.81          6.50             6.53             6.55
10,000-24,999     1,000,000-2,499,999   3.00           90.34          6.53             6.56             6.59
25,000-49,999     2,500,000-4,999,999   2.50           89.88          6.56             6.60             6.62
50,000 and over    5,000,000 and over   2.00           89.42          6.60             6.63             6.65
</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 %   $     92.14          6.55%            6.59%            6.61%
500-999                 50,000-99,999   4.75           92.00          6.56             6.60             6.62
1,000-2,499           100,000-249,999   4.50           91.76          6.58             6.62             6.64
2,500-4,999           250,000-499,999   4.25           91.52          6.59             6.63             6.65
5,000-9,999           500,000-999,999   3.50           90.81          6.65             6.69             6.71
10,000-24,999     1,000,000-2,499,999   3.00           90.34          6.68             6.72             6.74
25,000-49,999     2,500,000-4,999,999   2.50           89.88          6.72             6.76             6.78
50,000 and over    5,000,000 and over   2.00           89.42          6.75             6.79             6.81
</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
California Insured Trust                                                1995                                         per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .6388(1)                                                               $  5.8983
                                                             --------    $.4914 every month    --------
Quarterly Distribution Plan...........  $   .6388(1)   $   .4941(2)   $  1.4823      $  1.4823      $  1.4823      $  5.9303
Semi-Annual Distribution Plan.........  $   .6388(1)                  $  1.9824(3)                  $  2.9736      $  5.9493
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.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 $.01638 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.6388 per unit for the 39-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.6388 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01638              Quarterly - $0.01647
                             Semi-Annual - $0.01652
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.
 
- --------------------------------------------------------------------------------
 
                                                          768
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 28.4 years.
The first bond is scheduled to mature in November, 2019, with the last bond
maturity being September, 2030.
 
- -------------------------------------------------------
 
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
     COLORADO
     INSURED
     TRUST 54
 
            Estimated Current Return
            6.31% to 6.56%
            as of 11/21/94
 
            Estimated Long Term Return
            6.49% to 6.74%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706E9 135 Monthly Payment Option
                  6706E9 143 Quarterly Payment Option
                  6706E9 150 Semi-Annual Payment Option
 
                  Registered in Colorado
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--INSURED, COLORADO INSURED TRUST 54
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 22, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    Colorado State Board of Agriculture, Fort Lewis College            2002 at 100          AAA           Aaa
                  Auxiliary Facilities, Refunding and Improvement Revenue
                  Bonds, Series 1992, 6.50% Due 10/1/12.
     500,000    Colorado Health Facilities Authority, Hospital Revenue             2004 at 102          AAA           Aaa
                  Refunding Bonds (Boulder Community Hospital Project),
                  Series 1994B, 5.875% Due 10/1/23.
     500,000    University of Colorado Hospital Authority, Hospital Revenue        2002 at 102          AAA           Aaa
                  Bonds, Series 1992A, 6.40% Due 11/15/22.
     345,000    City of Colorado Springs, Colorado, Utilities System               2002 at 100          AAA           Aaa
                  Refunding Revenue Bonds, Series 1992A, 6.125% Due
                  11/15/20.
     500,000    Douglas County School District, Number RE.1, Douglas and           2004 at 101          AAA           Aaa
                  Elbert Counties, Colorado, General Obligation Improvement
                  Bonds, Series 1994A, 6.50% Due 12/15/16.
     500,000    Mesa County, Colorado, Revenue Bonds, Series 1994 (Sisters         2003 at 102          AAA           Aaa
                  of Charity of Leavenworth Health Services Corporation),
                  5.00% Due 12/1/23. (Original issue discount bonds
                  delivered on or about February 2, 1994 at a price of
                  94.00% of principal amount.)
     155,000    Platte River Power Authority, Colorado, Power Revenue Bonds,       2002 at 102          AAA           Aaa
                  Series BB, 5.50% Due 6/1/18. (Original issue discount
                  bonds delivered on or about December 3, 1992 at a price of
                  89.564% of principal amount.)
     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 %   $     93.13          6.31%            6.35%            6.37%
500-999                 50,000-99,999   4.75           92.99          6.32             6.35             6.38
1,000-2,499           100,000-249,999   4.50           92.74          6.34             6.37             6.39
2,500-4,999           250,000-499,999   4.25           92.50          6.35             6.39             6.41
5,000-9,999           500,000-999,999   3.50           91.78          6.40             6.44             6.46
10,000-24,999     1,000,000-2,499,999   3.00           91.31          6.44             6.47             6.49
25,000-49,999     2,500,000-4,999,999   2.50           90.84          6.47             6.51             6.53
50,000 and over    5,000,000 and over   2.00           90.38          6.50             6.54             6.56
</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 %   $     93.13          6.49%            6.52%            6.54%
500-999                 50,000-99,999   4.75           92.99          6.49             6.53             6.55
1,000-2,499           100,000-249,999   4.50           92.74          6.51             6.55             6.57
2,500-4,999           250,000-499,999   4.25           92.50          6.53             6.57             6.58
5,000-9,999           500,000-999,999   3.50           91.78          6.58             6.62             6.64
10,000-24,999     1,000,000-2,499,999   3.00           91.31          6.62             6.65             6.67
25,000-49,999     2,500,000-4,999,999   2.50           90.84          6.65             6.69             6.71
50,000 and over    5,000,000 and over   2.00           90.38          6.68             6.72             6.74
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to Date of Deposit. The estimated
    current return for purchases made on such date will be as shown, as long as
    the portfolio size and composition remain the same.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                                       Normal
                                                                                                                   Distributions
Colorado Insured Trust                                                  1995                                         per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .6364(1)                                                               $  5.8772
                                                             --------    $.4896 every month    --------
Quarterly Distribution Plan...........  $   .6364(1)   $   .4923(2)   $  1.4769      $  1.4769      $  1.4769      $  5.9092
Semi-Annual Distribution Plan.........  $   .6364(1)                  $  1.9752(3)                  $  2.9628      $  5.9282
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.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 $.01632 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.6364 per unit for the 39-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.6364 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01632              Quarterly - $0.01641
                             Semi-Annual - $0.01646
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
- --------------------------------------------------------------------------------
 
                                                          768
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 25.7 years.
The first bond is scheduled to mature in October, 2012, with the last bond
maturity being December, 2023.
 
- -------------------------------------------------------
 
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
     GEORGIA
     INSURED
     TRUST 41
 
            Estimated Current Return
            6.28% to 6.53%
            as of 11/21/94
 
            Estimated Long Term Return
            6.49% to 6.74%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101M 520 Monthly Payment Option
                  67101M 538 Quarterly Payment Option
                  67101M 546 Semi-Annual Payment Option
 
                  Registered in Georgia
                    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, GEORGIA INSURED TRUST 41
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 22, 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    Municipal Electric Authority of Georgia, Power Revenue             No Optional          AAA           Aaa
                  Bonds, Series V, 6.60% Due 1/1/18.                                  Call
     500,000    The City of Atlanta, Georgia, Certificates of Participation        2002 at 102          AAA           Aaa
                  (Atlanta Pretrial Detention Center Project), Series 1992,
                  6.25% Due 12/1/17.
     450,000    Bartow County School District (Georgia), General Obligation        2003 at 102          AAA           Aaa
                  School Bonds (Series 1993 Bonds), 5.70% Due 5/1/14.
     250,000    Cobb-Marietta Coliseum and Exhibit Hall Authority (Georgia),       No Optional          AAA           Aaa
                  Revenue Refunding Bonds, Series 1993, 5.50% Due 10/1/18.            Call
     500,000    City of Cordele (Georgia), Combined Public Utility Revenue         2004 at 102          AAA           Aaa
                  Refunding and Improvement Bonds, Series 1994, 6.375% Due
                  11/1/24.
     300,000    DeKalb County, Georgia, Water and Sewerage Revenue Bonds,          2003 at 102          AAA           Aaa
                  Series 1993, 5.25% Due 10/1/23.
     500,000    The Fulton-DeKalb Hospital Authority (Georgia), Revenue            2003 at 102          AAA           Aaa
                  Refunding Certificates, Series 1993, 5.50% Due 1/1/20.
                  (Original issue discount bonds delivered on or about June
                  15, 1993 at a price of 94.499% of principal
                  amount.)(General Obligation Bonds.)
     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 %   $     92.27          6.28%            6.32%            6.34%
500-999                 50,000-99,999   4.75           92.13          6.29             6.33             6.35
1,000-2,499           100,000-249,999   4.50           91.88          6.31             6.35             6.37
2,500-4,999           250,000-499,999   4.25           91.65          6.33             6.36             6.38
5,000-9,999           500,000-999,999   3.50           90.93          6.38             6.41             6.43
10,000-24,999     1,000,000-2,499,999   3.00           90.46          6.41             6.45             6.47
25,000-49,999     2,500,000-4,999,999   2.50           90.00          6.44             6.48             6.50
50,000 and over    5,000,000 and over   2.00           89.54          6.48             6.51             6.53
</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 %   $     92.27          6.49%            6.52%            6.54%
500-999                 50,000-99,999   4.75           92.13          6.49             6.53             6.55
1,000-2,499           100,000-249,999   4.50           91.88          6.51             6.55             6.57
2,500-4,999           250,000-499,999   4.25           91.65          6.53             6.57             6.58
5,000-9,999           500,000-999,999   3.50           90.93          6.58             6.62             6.64
10,000-24,999     1,000,000-2,499,999   3.00           90.46          6.62             6.65             6.67
25,000-49,999     2,500,000-4,999,999   2.50           90.00          6.65             6.69             6.71
50,000 and over    5,000,000 and over   2.00           89.54          6.68             6.72             6.74
</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
Georgia Insured Trust                                                   1995                                         per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .6279(1)                                                               $  5.7984
                                                             --------    $.4830 every month    --------
Quarterly Distribution Plan...........  $   .6279(1)   $   .4857(2)   $  1.4571      $  1.4571      $  1.4571      $  5.8304
Semi-Annual Distribution Plan.........  $   .6279(1)                  $  1.9488(3)                  $  2.9232      $  5.8494
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.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 $.01610 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.6279 per unit for the 39-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.6279 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01610              Quarterly - $0.01619
                             Semi-Annual - $0.01624
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.
 
- --------------------------------------------------------------------------------
 
                                                          768
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 25.2 years.
The first bond is scheduled to mature in May, 2014, with the last bond maturity
being November, 2024.
 
- -------------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     PENNSYLVANIA
     INSURED
     TRUST 190
 
            Estimated Current Return
            6.34% to 6.59%
            as of 11/21/94
 
            Estimated Long Term Return
            6.54% to 6.79%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706H9 702 Monthly Payment Option
                  6706H9 710 Quarterly Payment Option
                  6706H9 728 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 190
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT NOVEMBER 22, 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, 5.75% Due 6/15/15.
     500,000    Berks County Municipal Authority (Pennsylvania), Hospital          2004 at 102          AAA           Aaa
                  Revenue Bonds (The Reading Hospital and Medical Center
                  Project), Series B of 1994, 6.00% Due 10/1/14.
     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    Lehigh County, Pennsylvania, General Purpose Authority,            2004 at 102          AAA           Aaa
                  Hospital Revenue Bonds (Lehigh Valley Hospital, Inc.),
                  Series A of 1994, 6.00% Due 7/1/25. (Original issue
                  discount bonds delivered on or about April 14, 1994 at a
                  price of 93.973% of principal amount.)
     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    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    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 %   $     92.84          6.34%            6.38%            6.40%
500-999                 50,000-99,999   4.75           92.69          6.35             6.39             6.41
1,000-2,499           100,000-249,999   4.50           92.45          6.37             6.41             6.43
2,500-4,999           250,000-499,999   4.25           92.21          6.39             6.42             6.44
5,000-9,999           500,000-999,999   3.50           91.49          6.44             6.47             6.49
10,000-24,999     1,000,000-2,499,999   3.00           91.02          6.47             6.51             6.53
25,000-49,999     2,500,000-4,999,999   2.50           90.55          6.50             6.54             6.56
50,000 and over    5,000,000 and over   2.00           90.09          6.54             6.57             6.59
</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 %   $     92.84          6.54%            6.57%            6.59%
500-999                 50,000-99,999   4.75           92.69          6.55             6.58             6.60
1,000-2,499           100,000-249,999   4.50           92.45          6.57             6.60             6.62
2,500-4,999           250,000-499,999   4.25           92.21          6.58             6.61             6.63
5,000-9,999           500,000-999,999   3.50           91.49          6.64             6.67             6.69
10,000-24,999     1,000,000-2,499,999   3.00           91.02          6.67             6.70             6.72
25,000-49,999     2,500,000-4,999,999   2.50           90.55          6.71             6.74             6.76
50,000 and over    5,000,000 and over   2.00           90.09          6.74             6.77             6.79
</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>            <C>
- -------------------------------------------------------------------------------------------------------------      --------------
Record Date*..........................        1/1            2/1            5/1            8/1           11/1
Distribution Date.....................       1/15           2/15           5/15           8/15          11/15
- ---------------------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .6380(1)                                                               $  5.8898
                                                             --------    $.4908 every month    --------
Quarterly Distribution Plan...........  $   .6380(1)   $   .4932(2)   $  1.4796      $  1.4796      $  1.4796      $  5.9218
Semi-Annual Distribution Plan.........  $   .6380(1)                  $  1.9800(3)                  $  2.9700      $  5.9408
- ---------------------------------------------------------------------------------------------------------------------------------
<FN>
  * Record Dates for semi-annual distributions are May 1 and November 1; for quarterly distributions, they are February 1, May 1,
    August 1 and November 1. Record Dates for monthly distributions are the first day of each month.
(1) The first distribution will be paid to all Unitholders, regardless of the distribution plan selected. Such distribution may
    be more or less than a regular monthly distribution.
(2) The second distribution under the quarterly distribution plan represents a 1-month distribution; subsequent quarterly
    distributions will be regular 3-month distributions.
(3) The second distribution under the semi-annual distribution plan represents a 4-month distribution; subsequent semi-annual
    distributions will be regular 6-month distributions.
</TABLE>
 
+ Interest for Unitholders of this series began to accrue as of the Date of
Deposit. Units purchased on the Date of Deposit will have $.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 $.01636 per unit per day.
Consequently, on the first Record Date (01/01/95), accrued interest will total
$0.6380 per unit for the 39-day period. All interest accrued from the Date of
Deposit to the first Record Date, less expenses, will be distributed on the
first Distribution Date to Unitholders of Record as of the first Record Date.
The first payment to all Unitholders of Record on 01/01/95 is $.6380 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01636              Quarterly - $0.01644
                             Semi-Annual - $0.01650
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.
 
- --------------------------------------------------------------------------------
 
                                                          768
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.6 years.
The first bond is scheduled to mature in October, 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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