NUVEEN TAX EXEMPT UNIT TRUST SERIES 716
497, 1994-02-18
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     Nuveen
     National
     Trust 528
              (National Traditional Trust 528)
 
            Estimated Current Return
            First
            Year: 5.13% to 5.28%
            Subsequent
            Years: 5.14% to 5.29%
            as of 02/16/94
 
            Estimated Long Term Return
            5.15% to 5.31%
             100,000 units in a
             diversified $10,000,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  67101E 734 Monthly Payment Option
                  67101E 742 Quarterly Payment Option
                  67101E 759 Semi-Annual Payment Option
 
                  Registered in all states
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--NATIONAL TRADITIONAL TRUST 528
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT FEBRUARY 17, 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>
  --------------------------------------------------------------------------------------------------------------------------
  $  185,000    City of Phoenix (Arizona), Civic Improvement Corporation,          2004 at 102          AA-           A1
                  Junior Lien Water System Revenue Bonds, Series 1994, 5.50%
                  Due 7/1/24. (When issued.)
     750,000    State Public Works Board of the State of California, Lease         2003 at 102           A            A1
                  Revenue Bonds (The Regents of the University of
                  California), 1993 Series B (Various University of
                  California Projects), 5.50% Due 6/1/19.
     750,000    Anaheim Public Financing Authority, California, Revenue            2003 at 102          AAA           Aaa
                  Bonds, Second Series 1993 (City of Anaheim Electric
                  Utility San Juan Unit 4 Project), 5.75% Due 10/1/22. (FGIC
                  Insured.)
     600,000    City of Colorado Springs, Colorado, Utilities System               2002 at 100          AA            Aa
                  Refunding Revenue Bonds, Series 1992A, 6.125% Due
                  11/15/20.
     750,000    Orlando (Florida) Utilities Commission, Water and Electric         2002 at 100          AA-           Aa
                  Subordinated Revenue Bonds, Series 1992A, 5.50% Due
                  10/1/27. (Original issue discount bonds delivered on or
                  about August 25, 1992 at a price of 91.50% of principal
                  amount.)
     750,000    Chicago Metropolitan Housing Development Corporation               2004 at 100          --            Aaa
                  (Chicago, Illinois), Housing Development Revenue Refunding
                  Bonds (FHA-Insured Mortgage Loan-Section 8 Assisted
                  Project-Academy Square), Series 1993A, 5.60% Due 10/1/25.
     750,000    The Illinois State Toll Highway Authority, Toll Highway            2003 at 102          AAA           Aaa
                  Priority Revenue Bonds, 1992 Series A, 5.75% Due 1/1/17.
                  (Original issue discount bonds delivered on or about
                  October 14, 1992 at a price of 91.469% of principal
                  amount.)(FGIC Insured.)
     750,000    Massachusetts Bay Transportation Authority, General                2003 at 100          AAA           Aaa
                  Transportation System Bonds, 1992 Series B Refunding,
                  5.50% Due 3/1/21. (Original issue discount bonds delivered
                  on or about January 19, 1993 at a price of 89.125% of
                  principal amount.)(General Obligation Bonds.) (MBIA
                  Insured.)
     750,000    State of Michigan, State Trunk Line Fund Bonds, Series             2002 at 100          AA-           A1
                  1992A, 5.50% Due 10/1/21. (Original issue discount bonds
                  delivered on or about July 30, 1992 at a price of 90.625%
                  of principal amount.)
      35,000    Okemos Public Schools, County of Ingham, State of Michigan,        No Optional          AAA           Aaa
                  1993 Refunding Bonds, 0.00% Due 5/1/20. (Original issue             Call
                  discount bonds delivered on or about February 2, 1993 at a
                  price of 17.271% of principal amount.)(General Obligation
                  Bonds.) (MBIA Insured.)
     350,000    Romulus Community Schools, County of Wayne, State of               No Optional          AAA           Aaa
                  Michigan, 1993 Refunding Bonds, 0.00% Due 5/1/20.                   Call
                  (Original issue discount bonds delivered on or about May
                  4, 1993 at a price of 19.752% of principal
                  amount.)(General Obligation Bonds.) (FGIC Insured.)
     750,000    New York City (New York), Municipal Water Finance Authority,       2004 at 101          A-             A
                  Water and Sewer System Revenue Bonds, Fixed Rate Fiscal
                  1994 Series B, 5.50% Due 6/15/19.
     750,000    Lehigh County Industrial Development Authority, Pollution          2004 at 102          AAA           Aaa
                  Control Revenue Refunding Bonds, 1994 Series A
                  (Pennsylvania Power & Light Company Project), 5.50% Due
                  2/15/27. (When issued.) (MBIA Insured.)
     330,000    South Carolina Public Service Authority Revenue Bonds, 1993        2003 at 102          A+            A1
                  Refunding Series C, 5.125% Due 1/1/32. (Original issue
                  discount bonds delivered on or about October 5, 1993 at a
                  price of 94.485% of principal amount.)
     500,000    Intermountain Power Agency (Utah), Power Supply Revenue            2003 at 102          AA            Aa
                  Refunding Bonds, 1993 Series A, 5.50% Due 7/1/20.
     500,000    Industrial Development Authority of the City of Hampton,           2004 at 102           A             A
                  Virginia, Hospital Revenue and Refunding Bonds (Sentara
                  Hampton General Hospital), Series 1994A, 6.50% Due
                  11/1/12. (When issued.)
     750,000    Washington Public Power Supply System, Nuclear Project No. 3       2003 at 102          AA            Aa
                  Refunding Revenue Bonds, Series 1993C, 5.50% Due 7/1/18.
  ----------
  $10,000,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. Estimated Current Return equals net income divided by offering
price. Estimated Long Term Return represents an average of the yields to
maturity (or call) of the Bonds in the Trust adjusted to reflect expenses and
sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                              Estimated Current Return (2)
          AMOUNT PURCHASED                         Public      -----------------------------------------------------------
- -------------------------------------  Sales      Offering         Monthly           Quarterly            Semi-Annual
     Units              Dollars        Charge     Price (1)        Payment            Payment               Payment
- ----------------  -------------------  ------    -----------   ---------------    ---------------    ---------------------
<S>               <C>                  <C>       <C>           <C>       <C>      <C>       <C>      <C>       <C>
50-999                 $5,000-$99,999   4.90 %   $    102.28     (5.13%)  5.14%     (5.16%)  5.17%     (5.18%)  5.19%
1,000-2,499           100,000-249,999   4.50          101.85     (5.15)   5.16      (5.18)   5.19      (5.20)   5.21
2,500-4,999           250,000-499,999   4.25          101.59     (5.16)   5.17      (5.19)   5.21      (5.21)   5.22
5,000-9,999           500,000-999,999   3.50          100.80     (5.20)   5.21      (5.23)   5.25      (5.25)   5.26
10,000 and over    1,000,000 and over   3.00          100.28     (5.23)   5.24      (5.26)   5.27      (5.28)   5.29
</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>
50-999                 $5,000-$99,999   4.90 %   $    102.28          5.15%            5.18%            5.20%
1,000-2,499           100,000-249,999   4.50          101.85          5.17             5.21             5.22
2,500-4,999           250,000-499,999   4.25          101.59          5.18             5.22             5.24
5,000-9,999           500,000-999,999   3.50          100.80          5.22             5.26             5.28
10,000 and over    1,000,000 and over   3.00          100.28          5.25             5.29             5.31
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to the Date of Deposit. Figures in
    brackets represent the current return. The first year's estimated current
    returns are slightly lower than those for subsequent years because a portion
    of the monies received in the first year only will be treated as a return of
    principal due to the inclusion in the portfolio of "when issued" or other
    Bonds having delivery dates after the date of settlement for a purchase made
    on the Date of Deposit.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                          Normal
                                                                                                      Distributions
National Traditional Trust                               1994                          1995             per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        5/1            8/1           11/1            2/1
Distribution Date.....................       5/15           8/15          11/15           2/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3040(1)                                                  $  5.2559
                                                          --------  $.4379 every month  --------
Quarterly Distribution Plan...........  $   .3040(1)   $  1.3219(2)   $  1.3219      $  1.3219        $  5.2879
Semi-Annual Distribution Plan.........  $   .3040(1)                  $  2.6534(3)                    $  5.3069
- --------------------------------------------------------------------------------------------------------------------
<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.
(2) Regular 3-month distribution.
(3) Regular 6-month distribution.
</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 $.01460 per unit per day.
Consequently, on the first Record Date (05/01/94), accrued interest will total
$1.0804 per unit for the 74-day period. Because a substantial portion of this
interest will not yet be due from the issuers of the bonds in the Fund, the
first payment to all Unitholders of Record on 05/01/94 is $.3040, and the
remaining $.7764 of accrued interest will remain an asset of the Trust and be
distributed in subsequent periods as portfolio bonds mature, or are redeemed, or
sold and the accrued interest on these bonds is collected. After the first
Record Date daily rates of accrual are:
              Monthly - $0.01460              Quarterly - $0.01469
                             Semi-Annual - $0.01474
This daily rate of accrual, and the annual distributions shown above, will
remain the same as long as the portfolio size and composition remain the same.
 
- --------------------------------------------------------------------------------
<PAGE>
- -------------------------------------------------
 
DIVERSIFICATION OF PORTFOLIO INCOME
There are 17 Tax-exempt bond issues in this trust; this diversified portfolio
yields current income from issuers in 13 states.
- -------------------------------------------------
<TABLE>
<CAPTION>
                    Percent
                    of Total
                    Income
<S>                 <C>        <C>
- ------------------------
                               %
Arizona                   1.9
California               15.8
Colorado                  6.8
Florida                   7.6
Illinois                 15.7
Massachusetts             7.6
Michigan                  7.6
 
<CAPTION>
                    Percent
                    of Total
                    Income
- ------------------------
<S>                 <C>        <C>
                               %
New York                  7.6
Pennsylvania              7.6
South Carolina            3.1
Utah                      5.1
Virginia                  6.0
Washington                7.6
</TABLE>
 
- -------------------------------------------------
 
AVERAGE PORTFOLIO LIFE
 
The average maturity of portfolio bonds is 27.6 years. The first bond is
scheduled to mature in November, 2012, with the last bond maturity being
January, 2032.
 
- -------------------------------------------------
QUALITY OF PORTFOLIO AS RATED BY
STANDARD & POOR'S CORPORATION
OR MOODY'S INVESTORS SERVICES
- -------------------------------------------------
 
<TABLE>
<CAPTION>
       Rating          Percent of Portfolio
      Category              Par Value
<S>                    <C>                   <C>
- -------------------------------------------------------------
AAA                         41%
AA                          35
A1/A+                       11
A                           13
                           ---
                           100%
</TABLE>
 
- -------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-351-4100
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
 
716
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     GEORGIA
     INSURED
     TRUST 34
 
            Estimated Current Return
            4.79% to 4.93%
            as of 02/16/94
 
            Estimated Long Term Return
            4.91% to 5.05%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101M 314 Monthly Payment Option
                  67101M 322 Quarterly Payment Option
                  67101M 330 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 34
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT FEBRUARY 17, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  525,000    Municipal Electric Authority of Georgia, General Power             No Optional          AAA           Aaa
                  Revenue Bonds, 1992B Series, 6.25% Due 1/1/17.                      Call
     500,000    The Dalton-Whitfield County Hospital Authority (Georgia),          2004 at 102          AAA           Aaa
                  Refunding Revenue Anticipation Certificates, Series 1993,
                  5.375% Due 7/1/20.
     320,000    DeKalb County, Georgia, Water and Sewerage Revenue Bonds,          2003 at 102          AAA           Aaa
                  Series 1993, 5.25% Due 10/1/23.
     250,000    Building Authority of Fulton County (Georgia), Revenue             No Optional          AAA           Aaa
                  Refunding Bonds (Judicial Center Facilities Project),               Call
                  Series 1991, 0.00% Due 1/1/11. (Original issue discount
                  bonds delivered on or about November 7, 1991 at a price of
                  28.046% of principal amount.)(General Obligation Bonds.)
     525,000    Hospital Authority of Fulton County (Georgia), Refunding           2004 at 102          AAA           Aaa
                  Revenue Anticipation Certificates (Northside Hospital
                  Project), Series 1993A, 5.125% Due 10/1/16. (Original
                  issue discount bonds delivered on or about February 2,
                  1994 at a price of 94.795% of principal amount.)
     400,000    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 94.50% of principal
                  amount.)(General Obligation Bonds.)
     480,000    City of Jesup (Georgia), Water and Sewer Revenue Refunding         2004 at 102          AAA           Aaa
                  Bonds, Series 1994A, 5.25% Due 3/1/15. (When issued.)
     500,000    Commonwealth of Puerto Rico, Public Improvement Refunding          2003 at 101          AAA           Aaa
                  Bonds, Series 1993 (General Obligation Bonds.), 5.25% Due            1/2
                  7/1/18. (Original issue discount bonds delivered on or
                  about July 15, 1993 at a price of 93.414% of principal
                  amount.)
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. Estimated Current Return equals net income divided by offering
price. Estimated Long Term Return represents an average of the yields to
maturity (or call) of the Bonds in the Trust adjusted to reflect expenses and
sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-999                 $5,000-$99,999   4.90 %   $    101.92          4.79%            4.82%            4.84%
1,000-2,499           100,000-249,999   4.50          101.50          4.81             4.84             4.86
2,500-4,999           250,000-499,999   4.25          101.23          4.82             4.85             4.87
5,000-9,999           500,000-999,999   3.50          100.45          4.86             4.89             4.91
10,000 and over    1,000,000 and over   3.00           99.93          4.88             4.91             4.93
</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>
50-999                 $5,000-$99,999   4.90 %   $    101.92          4.91%            4.94%            4.96%
1,000-2,499           100,000-249,999   4.50          101.50          4.93             4.96             4.98
2,500-4,999           250,000-499,999   4.25          101.23          4.94             4.97             4.99
5,000-9,999           500,000-999,999   3.50          100.45          4.98             5.01             5.03
10,000 and over    1,000,000 and over   3.00           99.93          5.01             5.03             5.05
</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                                    1994                          1995             per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        5/1            8/1           11/1            2/1
Distribution Date.....................       5/15           8/15          11/15           2/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3648(1)                                                  $  4.8776
                                                          --------  $.4064 every month  --------
Quarterly Distribution Plan...........  $   .3648(1)   $  1.2274(2)   $  1.2274      $  1.2274        $  4.9096
Semi-Annual Distribution Plan.........  $   .3648(1)                  $  2.4643(3)                    $  4.9286
- --------------------------------------------------------------------------------------------------------------------
<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.
(2) Regular 3-month distribution.
(3) Regular 6-month distribution.
</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 $.01355 per unit per day.
Consequently, on the first Record Date (05/01/94), accrued interest will total
$1.0027 per unit for the 74-day period. Because a substantial portion of this
interest will not yet be due from the issuers of the bonds in the Fund, the
first payment to all Unitholders of Record on 05/01/94 is $.3648, and the
remaining $.6379 of accrued interest will remain an asset of the Trust and be
distributed in subsequent periods as portfolio bonds mature, or are redeemed, or
sold and the accrued interest on these bonds is collected. After the first
Record Date daily rates of accrual are:
              Monthly - $0.01355              Quarterly - $0.01364
                             Semi-Annual - $0.01369
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.
 
- --------------------------------------------------------------------------------
 
                                                          716
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 23.8 years.
The first bond is scheduled to mature in January, 2011, with the last bond
maturity being October, 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.
 
- -------------------------------------------------
 
* 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
 
                                 1-800-351-4100
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     MASSACHUSETTS
     INSURED
     TRUST 110
 
            Estimated Current Return
            First
            Year: 4.87% to 5.02%
            Subsequent
            Years: 4.91% to 5.06%
            as of 02/16/94
 
            Estimated Long Term Return
            4.95% to 5.09%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  670946 672 Monthly Payment Option
                  670946 680 Quarterly Payment Option
                  670946 698 Semi-Annual Payment Option
 
                  Registered in Massachusetts
                    John Nuveen & Co. Incorporated
                    Investment Bankers
<PAGE>
 
<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, MASSACHUSETTS INSURED TRUST 110
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT FEBRUARY 17, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  525,000    Massachusetts Bay Transportation Authority, General                2003 at 100          AAA           Aaa
                  Transportation System Bonds, 1992 Series B Refunding,
                  5.50% Due 3/1/21. (Original issue discount bonds delivered
                  on or about January 19, 1993 at a price of 89.125% of
                  principal amount.)(General Obligation Bonds.)
     525,000    Massachusetts Health and Educational Facilities Authority          2003 at 102          AAA           Aaa
                  Revenue Bonds, Boston College Issue, Series K, 5.25% Due
                  6/1/23. (Original issue discount bonds delivered on or
                  about November 16, 1993 at a price of 93.875% of principal
                  amount.)
     525,000    Massachusetts Health and Educational Facilities Authority,         2003 at 102          AAA           Aaa
                  Revenue Bonds, Lahey Clinic Medical Center Issue, Series
                  B, 5.375% Due 7/1/23. (Original issue discount bonds
                  delivered on or about April 27, 1993 at a price of 94.511%
                  of principal amount.)
     525,000    Massachusetts Health and Educational Facilities Authority,         2004 at 102          AAA           Aaa
                  Revenue Bonds, New England Medical Center Hospitals Issue,
                  Series G-1, 5.375% Due 7/1/24.
     525,000    Massachusetts Municipal Wholesale Electric Company, Power          2004 at 102          AAA           Aaa
                  Supply System Revenue Refunding Bonds, 1994 Series B,
                  5.00% Due 7/1/17. (When issued.)
     375,000    Town of Leicester, Massachusetts, General Obligation School        2004 at 102          AAA           Aaa
                  Bonds, 5.10% Due 1/15/13.
     500,000    Commonwealth of Puerto Rico, Public Improvement Refunding          2003 at 100          AAA           Aaa
                  Bonds, Series 1993 (General Obligation Bonds.), 5.00% Due
                  7/1/21. (Original issue discount bonds delivered on or
                  about July 15, 1993 at a price of 90.01% of principal
                  amount.)
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. Estimated Current Return equals net income divided by offering
price. Estimated Long Term Return represents an average of the yields to
maturity (or call) of the Bonds in the Trust adjusted to reflect expenses and
sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                              Estimated Current Return (2)
          AMOUNT PURCHASED                         Public      -----------------------------------------------------------
- -------------------------------------  Sales      Offering         Monthly           Quarterly            Semi-Annual
     Units              Dollars        Charge     Price (1)        Payment            Payment               Payment
- ----------------  -------------------  ------    -----------   ---------------    ---------------    ---------------------
<S>               <C>                  <C>       <C>           <C>       <C>      <C>       <C>      <C>       <C>
50-999                 $5,000-$99,999   4.90 %   $    103.01     (4.87%)  4.91%     (4.91%)  4.94%     (4.92%)  4.96%
1,000-2,499           100,000-249,999   4.50          102.58     (4.89)   4.93      (4.93)   4.96      (4.94)   4.98
2,500-4,999           250,000-499,999   4.25          102.31     (4.91)   4.95      (4.94)   4.98      (4.96)   5.00
5,000-9,999           500,000-999,999   3.50          101.51     (4.95)   4.99      (4.98)   5.02      (5.00)   5.04
10,000 and over    1,000,000 and over   3.00          100.99     (4.97)   5.01      (5.00)   5.04      (5.02)   5.06
</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>
50-999                 $5,000-$99,999   4.90 %   $    103.01          4.95%            4.98%            4.99%
1,000-2,499           100,000-249,999   4.50          102.58          4.97             5.00             5.01
2,500-4,999           250,000-499,999   4.25          102.31          4.98             5.02             5.02
5,000-9,999           500,000-999,999   3.50          101.51          5.02             5.06             5.07
10,000 and over    1,000,000 and over   3.00          100.99          5.04             5.08             5.09
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to the Date of Deposit. Figures in
    brackets represent the current return. The first year's estimated current
    returns are slightly lower than those for subsequent years because a portion
    of the monies received in the first year only will be treated as a return of
    principal due to the inclusion in the portfolio of "when issued" or other
    Bonds having delivery dates after the date of settlement for a purchase made
    on the Date of Deposit.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                          Normal
                                                                                                      Distributions
Massachusetts Insured Trust                              1994                          1995             per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        5/1            8/1           11/1            2/1
Distribution Date.....................       5/15           8/15          11/15           2/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3509(1)                                                  $  5.0606
                                                          --------  $.4217 every month  --------
Quarterly Distribution Plan...........  $   .3509(1)   $  1.2731(2)   $  1.2731      $  1.2731        $  5.0926
Semi-Annual Distribution Plan.........  $   .3509(1)                  $  2.5558(3)                    $  5.1116
- --------------------------------------------------------------------------------------------------------------------
<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.
(2) Regular 3-month distribution.
(3) Regular 6-month distribution.
</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 $.01406 per unit per day.
Consequently, on the first Record Date (05/01/94), accrued interest will total
$1.0404 per unit for the 74-day period. Because a substantial portion of this
interest will not yet be due from the issuers of the bonds in the Fund, the
first payment to all Unitholders of Record on 05/01/94 is $.3509, and the
remaining $.6895 of accrued interest will remain an asset of the Trust and be
distributed in subsequent periods as portfolio bonds mature, or are redeemed, or
sold and the accrued interest on these bonds is collected. After the first
Record Date daily rates of accrual are:
              Monthly - $0.01406              Quarterly - $0.01415
                             Semi-Annual - $0.01420
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.
 
- --------------------------------------------------------------------------------
 
                                                          716
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 26.9 years.
The first bond is scheduled to mature in January, 2013, with the last bond
maturity being July, 2024.
 
- -------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------
 
* 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
 
                                 1-800-351-4100
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     PENNSYLVANIA
     INSURED
     TRUST 176
 
            Estimated Current Return
            First
            Year: 4.96% to 5.11%
            Subsequent
            Years: 4.97% to 5.12%
            as of 02/16/94
 
            Estimated Long Term Return
            5.03% to 5.18%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706H9 280 Monthly Payment Option
                  6706H9 298 Quarterly Payment Option
                  6706H9 306 Semi-Annual Payment Option
 
                  Registered in Pennsylvania & Florida
                    John Nuveen & Co. Incorporated
                    Investment Bankers
<PAGE>
 
<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 176
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT FEBRUARY 17, 1994
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  525,000    Pennsylvania Intergovernmental Cooperation Authority,              2003 at 100          AAA           Aaa
                  Special Tax Revenue Refunding Bonds (City of Philadelphia
                  Funding Program) Series of 1993A, 5.00% Due 6/15/22.
                  (Original issue discount bonds delivered on or about
                  September 14, 1993 at a price of 92.134% of principal
                  amount.)
     500,000    Dauphin County General Authority, Hospital Revenue Bonds,          2003 at 102          AAA           Aaa
                  HAPSCO Group, Inc. Tax-Exempt Loan Program (The Western
                  Pennsylvania Hospital Project), Fixed Rate Bonds, 1993
                  Series A-1, 5.50% Due 7/1/23.
     500,000    Delaware County Authority (Commonwealth of Pennsylvania),          2003 at 102          AAA           Aaa
                  University Revenue Bonds, Series of 1993 (Villanova
                  University), 5.50% Due 8/1/23.
     500,000    Lehigh County Industrial Development Authority, Pollution          2004 at 102          AAA           Aaa
                  Control Revenue Refunding Bonds, 1994 Series A
                  (Pennsylvania Power & Light Company Project), 5.50% Due
                  2/15/27. (When issued.)
     125,000    City of Philadelphia, Pennsylvania, Gas Works Revenue Bonds,       No Optional          AAA           Aaa
                  Twelfth Series B, 7.00% Due 5/15/20. (Escrow Secured.)              Call
     250,000    The Pittsburgh Water and Sewer Authority (Pennsylvania),           2003 at 102          AAA           Aaa
                  Water and Sewer System Revenue Refunding Bonds, Series A
                  of 1993, 4.75% Due 9/1/16. (Original issue discount bonds
                  delivered on or about November 16, 1993 at a price of
                  92.144% of principal amount.)
     500,000    Washington County Hospital Authority (Commonwealth of              2003 at 102          AAA           Aaa
                  Pennsylvania), Hospital Revenue Bonds, Series of 1993 (The
                  Washington Hospital Project), 5.625% Due 7/1/23.
     110,000    York City Sewer Authority, City of York, Pennsylvania,             No Optional          AAA           Aaa
                  Guaranteed Sewer Revenue Bonds, Series of 1990, 0.00% Due           Call
                  12/1/15. (Original issue discount bonds delivered on or
                  about December 20, 1990 at a price of 17.542% of principal
                  amount.)(General Obligation Bonds.)
     490,000    Commonwealth of Puerto Rico, Public Improvement Refunding          2003 at 101          AAA           Aaa
                  Bonds, Series 1993 (General Obligation Bonds.), 5.25% Due            1/2
                  7/1/18. (Original issue discount bonds delivered on or
                  about July 15, 1993 at a price of 93.414% of principal
                  amount.)
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION
Sales charge/volume discount applies on all concurrent purchases of any Nuveen
trust units. Estimated Current Return equals net income divided by offering
price. Estimated Long Term Return represents an average of the yields to
maturity (or call) of the Bonds in the Trust adjusted to reflect expenses and
sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                              Estimated Current Return (2)
          AMOUNT PURCHASED                         Public      -----------------------------------------------------------
- -------------------------------------  Sales      Offering         Monthly           Quarterly            Semi-Annual
     Units              Dollars        Charge     Price (1)        Payment            Payment               Payment
- ----------------  -------------------  ------    -----------   ---------------    ---------------    ---------------------
<S>               <C>                  <C>       <C>           <C>       <C>      <C>       <C>      <C>       <C>
50-999                 $5,000-$99,999   4.90 %   $    101.84     (4.96%)  4.97%     (4.99%)  5.00%     (5.01%)  5.02%
1,000-2,499           100,000-249,999   4.50          101.41     (4.98)   4.99      (5.02)   5.02      (5.03)   5.04
2,500-4,999           250,000-499,999   4.25          101.15     (5.00)   5.00      (5.03)   5.03      (5.05)   5.05
5,000-9,999           500,000-999,999   3.50          100.36     (5.04)   5.04      (5.07)   5.07      (5.09)   5.09
10,000 and over    1,000,000 and over   3.00           99.85     (5.06)   5.07      (5.09)   5.10      (5.11)   5.12
</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>
50-999                 $5,000-$99,999   4.90 %   $    101.84          5.03%            5.06%            5.08%
1,000-2,499           100,000-249,999   4.50          101.41          5.05             5.08             5.10
2,500-4,999           250,000-499,999   4.25          101.15          5.06             5.09             5.11
5,000-9,999           500,000-999,999   3.50          100.36          5.11             5.13             5.15
10,000 and over    1,000,000 and over   3.00           99.85          5.13             5.16             5.18
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
(1) As of the business day prior to the Date of Deposit. Units are offered at
    the Public Offering Price plus accrued interest.
(2) All figures as of the business day prior to the Date of Deposit. Figures in
    brackets represent the current return. The first year's estimated current
    returns are slightly lower than those for subsequent years because a portion
    of the monies received in the first year only will be treated as a return of
    principal due to the inclusion in the portfolio of "when issued" or other
    Bonds having delivery dates after the date of settlement for a purchase made
    on the Date of Deposit.
(3) In contrast to Estimated Current Return, Estimated Long Term Return reflects
    the amortization of premium or accretion of discount, if any, on the bonds
    in the Trust's portfolio.
 
- --------------------------------------------------------------------------------
 
INTEREST DISTRIBUTIONS TO UNITHOLDERS   Unitholders may elect to have interest
distributions made on a monthly, quarterly, or semi-annual basis. Record Dates
are May 1 and November 1 for semi-annual distributions; February 1, May 1,
August 1 and November 1 for quarterly distributions; and the first of each month
for monthly distributions. Details of interest distributions per unit under the
various plans appear in the following table based upon estimated net annual
interest income at the Date of Deposit:
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                                          Normal
                                                                                                      Distributions
Pennsylvania Insured Trust                               1994                          1995             per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        5/1            8/1           11/1            2/1
Distribution Date.....................       5/15           8/15          11/15           2/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3376(1)                                                  $  5.0599
                                                          --------  $.4216 every month  --------
Quarterly Distribution Plan...........  $   .3376(1)   $  1.2729(2)   $  1.2729      $  1.2729        $  5.0919
Semi-Annual Distribution Plan.........  $   .3376(1)                  $  2.5554(3)                    $  5.1109
- --------------------------------------------------------------------------------------------------------------------
<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.
(2) Regular 3-month distribution.
(3) Regular 6-month distribution.
</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 $.01406 per unit per day.
Consequently, on the first Record Date (05/01/94), accrued interest will total
$1.0404 per unit for the 74-day period. Because a substantial portion of this
interest will not yet be due from the issuers of the bonds in the Fund, the
first payment to all Unitholders of Record on 05/01/94 is $.3376, and the
remaining $.7028 of accrued interest will remain an asset of the Trust and be
distributed in subsequent periods as portfolio bonds mature, or are redeemed, or
sold and the accrued interest on these bonds is collected. After the first
Record Date daily rates of accrual are:
              Monthly - $0.01406              Quarterly - $0.01414
                             Semi-Annual - $0.01420
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.
 
- --------------------------------------------------------------------------------
 
                                                          716
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 28.2 years.
The first bond is scheduled to mature in December, 2015, with the last bond
maturity being February, 2027.
 
- -------------------------------------------------
 
BONDS INSURED BY MBIA   Each bond in this Nuveen Insured series has been
insured* by the Municipal Bond Investors Assurance Corporation, which guarantees
timely payments of principal and interest. Premium payments have been fully paid
by the Date of Deposit.
 
- -------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------
 
* Insurance relates specifically to the bonds and not to the units or to the
  market value of units. Terms of the insurance are more fully described in the
  prospectus. No representation is made as to the insurer's ability to meet its
  commitments. See Section 5 of the prospectus for details.
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-351-4100
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.


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