NUVEEN TAX EXEMPT UNIT TRUST SERIES 810
497, 1995-07-10
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<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     MARYLAND
     TRUST 308
              (MARYLAND TRADITIONAL TRUST 308)
 
            Estimated Current Return
            First
            Year: 5.18% to 5.39%
            Subsequent
            Years: 5.20% to 5.41%
            as of 07/06/95
 
            Estimated Long Term Return
            5.33% to 5.54%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  67102E 162 Monthly Payment Option
                  67102E 170 Quarterly Payment Option
                  67102E 188 Semi-Annual Payment Option
 
                  Registered in Maryland
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--MARYLAND TRADITIONAL TRUST 308
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JULY 7, 1995
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    Maryland Health and Higher Educational Facilities Authority,       2003 at 102          AAA           Aaa
                  Project and Refunding Revenue Bonds, Peninsula Regional
                  Medical Center Issue, Series 1993, 5.00% Due 7/1/23.
                  (Original issue discount bonds delivered on or about
                  October 28, 1993 at a price of 93.41% of principal
                  amount.)(MBIA Insured.)
     500,000    Maryland Health and Higher Educational Facilities Authority,       2003 at 102          AAA           Aaa
                  Project and Refunding Revenue Bonds, University of
                  Maryland Medical System Issue, Series 1993, 5.375% Due
                  7/1/13. (FGIC Insured.)
     500,000    Anne Arundel County, Maryland, Consolidated General                2005 at 101          AA+           Aa
                  Improvement Bonds, Series 1995,
                215M-6.30% Due 8/1/23,
                285M-6.30% Due 8/1/24.
                  (General Obligation Bonds.)
     500,000    Anne Arundel County, Maryland, Pollution Control Revenue           2004 at 102           A            A2
                  Refunding Bonds (Baltimore Gas and Electric Company
                  Project), Series 1994, 6.00% Due 4/1/24.
     500,000    Harford County, Maryland, Consolidated Public Improvement          2003 at 102          AA-           Aa
                  and Refunding Bonds, Series 1993, 4.90% Due 12/1/12.
                  (General Obligation Bonds.)
     500,000    University of Maryland System, Auxiliary Facility and              2003 at 101          AA+           Aa
                  Tuition Revenue Bonds, 1993 Refunding Series C, 5.00% Due
                  10/1/10.
     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.)(MBIA Insured.)
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                              Estimated Current Return (2)
          AMOUNT PURCHASED                         Public      -----------------------------------------------------------
- -------------------------------------  Sales      Offering         Monthly           Quarterly            Semi-Annual
     Units              Dollars        Charge     Price (1)        Payment            Payment               Payment
- ----------------  -------------------  ------    -----------   ---------------    ---------------    ---------------------
<S>               <C>                  <C>       <C>           <C>       <C>      <C>       <C>      <C>       <C>
50-499                 $5,000-$49,999   4.90 %   $     99.16     (5.18%)  5.20%     (5.21%)  5.23%     (5.23%)  5.25%
500-999                 50,000-99,999   4.75           99.00     (5.19)   5.21      (5.22)   5.24      (5.24)   5.26
1,000-2,499           100,000-249,999   4.50           98.74     (5.20)   5.22      (5.23)   5.26      (5.25)   5.28
2,500-4,999           250,000-499,999   4.25           98.49     (5.21)   5.24      (5.25)   5.27      (5.27)   5.29
5,000-9,999           500,000-999,999   3.50           97.72     (5.26)   5.28      (5.29)   5.31      (5.31)   5.33
10,000-24,999     1,000,000- 2,499,999  3.00           97.22     (5.28)   5.31      (5.32)   5.34      (5.33)   5.36
25,000-49,999     2,500,000- 4,999,999  2.50           96.72     (5.31)   5.33      (5.34)   5.37      (5.36)   5.39
50,000 and over    5,000,000 and over   2.00           96.22     (5.34)   5.36      (5.37)   5.39      (5.39)   5.41
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     99.16          5.33%            5.35%            5.37%
500-999                 50,000-99,999   4.75           99.00          5.33             5.36             5.38
1,000-2,499           100,000-249,999   4.50           98.74          5.35             5.38             5.40
2,500-4,999           250,000-499,999   4.25           98.49          5.36             5.39             5.41
5,000-9,999           500,000-999,999   3.50           97.72          5.40             5.43             5.45
10,000-24,999     1,000,000- 2,499,999  3.00           97.22          5.43             5.46             5.48
25,000-49,999     2,500,000- 4,999,999  2.50           96.72          5.46             5.49             5.51
50,000 and over    5,000,000 and over   2.00           96.22          5.49             5.52             5.54
</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
Maryland Traditional Trust                        1995                             1996                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        8/1           11/1            2/1            5/1
Distribution Date.....................       8/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3436(1)                                                  $  5.1576
                                                          --------  $.4296 every month  --------
Quarterly Distribution Plan...........  $   .3436(1)   $  1.2969(2)   $  1.2969      $  1.2969        $  5.1896
Semi-Annual Distribution Plan.........  $   .3436(1)   $  1.3014(3)                  $  2.6028        $  5.2086
- --------------------------------------------------------------------------------------------------------------------
<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) Regular 3-month distribution.
(3) The second distribution under the semi-annual distribution plan represents a 3-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 $.07 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 $.01432 per unit per day.
Consequently, on the first Record Date (08/01/95), accrued interest will total
$0.3436 per unit for the 24-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 08/01/95 is $.3436 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01432              Quarterly - $0.01441
                             Semi-Annual - $0.01446
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.
 
- --------------------------------------------------------------------------------
 
                                                          810
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 23.1 years.
The first bond is scheduled to mature in October, 2010, with the last bond
maturity being August, 2024.
 
- -------------------------------------------------------
 
QUALITY OF PORTFOLIO AS RATED BY
STANDARD & POOR'S CORPORATION
OR MOODY'S INVESTORS SERVICES
- -------------------------------------------------------
 
<TABLE>
<S>                       <C>                    <C>
Rating                    Percent of Portfolio
Category                  Par Value
- --------------------------------------------------------------------
AAA                           43%
AA                            43
A                             14
                             ---
                             100%
</TABLE>
 
- -------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     VIRGINIA
     TRUST 301
              (VIRGINIA TRADITIONAL TRUST 301)
 
            Estimated Current Return
            5.30% to 5.51%
            as of 07/06/95
 
            Estimated Long Term Return
            5.44% to 5.66%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds
                  Cusip:
                  6706L5 739 Monthly Payment Option
                  6706L5 747 Quarterly Payment Option
                  6706L5 754 Semi-Annual Payment Option
 
                  Registered in Virginia
                    John Nuveen & Co. Incorporated
                    Investment Bankers
 
<TABLE>
<S>                           <C>
Chicago:                      Atlanta
333 W. Wacker Dr.             Austin
Chicago, Illinois 60606       Boca Raton
Telephone: 312.917.7700       Boston
                              Columbus
New York:                     Dallas/Ft. Worth
Swiss Bank Tower              Irvine
10 East 50th Street           Philadelphia
New York, New York 10022      Phoenix
Telephone: 212.207.2000       San Francisco
                              Seattle
                              Tampa
                              Washington, D.C.
</TABLE>
 
<PAGE>
- --------------------------------------------------------------------------------
 
NUVEEN TAX-EXEMPT UNIT TRUST--VIRGINIA TRADITIONAL TRUST 301
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JULY 7, 1995
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    Metropolitan Washington Airports Authority (District of            2003 at 102          AAA           Aaa
                  Columbia and Virginia), Airport System Revenue and
                  Refunding Bonds, Series 1993A, 5.25% Due 10/1/22. (MBIA
                  Insured.)
     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.)(MBIA Insured.)
     500,000    Industrial Development Authority of Albemarle County,              2003 at 102          --             A
                  Virginia, Hospital Refunding Revenue Bonds (Martha
                  Jefferson Hospital), Series 1993, 5.50% Due 10/1/15.
                  (Original issue discount bonds delivered on or about July
                  1, 1993 at a price of 94.478% of principal amount.)
     160,000    Fairfax County Economic Development Authority (Virginia),          2004 at 102          AA            Aa
                  Lease Revenue Bonds (Government Center Properties), Series
                  1994, 5.50% Due 5/15/14. (Original issue discount bonds
                  delivered on or about March 15, 1994 at a price of 94.746%
                  of principal amount.)
     235,000    Industrial Development Authority of Fairfax County,                No Optional          AA-           Aa
                  Virginia, Hospital Revenue Refunding Bonds (Inova Health            Call
                  System Hospitals Project), Series 1993A, 5.00% Due
                  8/15/15.
     500,000    Industrial Development Authority of the Town of Louisa,            2004 at 102           A            A2
                  Virginia, Pollution Control Revenue Bonds (Virginia
                  Electric and Power Company Project), Series 1994, 5.45%
                  Due 1/1/24.
     250,000    Industrial Development Authority of the City of Norfolk            2004 at 102          AA            Aa
                  (Virginia), Hospital Revenue and Refunding Bonds (Sentara
                  Hospitals-Norfolk), Series 1994A, 5.00% Due 11/1/20.
                  (Original issue discount bonds delivered on or about March
                  1, 1994 at a price of 93.703% of principal amount.)
     200,000    City of Richmond, Virginia, General Obligation Public              2003 at 102          AA            A1
                  Improvement Bonds, Series 1993B, 5.50% Due 7/15/23.
     500,000    Riverside Regional Jail Authority (Virginia), Jail Facility        2005 at 102          AAA           Aaa
                  Revenue Bonds, Series 1995, 6.00% Due 7/1/25. (MBIA
                  Insured.)
     155,000    County of Roanoke, Virginia, Water System Refunding Revenue        2003 at 102          AAA           Aaa
                  Bonds, Series 1993, 5.125% Due 7/1/13. (FGIC Insured.)
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     97.45          5.30%            5.33%            5.35%
500-999                 50,000-99,999   4.75           97.30          5.31             5.34             5.36
1,000-2,499           100,000-249,999   4.50           97.05          5.32             5.35             5.37
2,500-4,999           250,000-499,999   4.25           96.79          5.33             5.37             5.39
5,000-9,999           500,000-999,999   3.50           96.04          5.38             5.41             5.43
10,000-24,999     1,000,000- 2,499,999  3.00           95.55          5.40             5.44             5.46
25,000-49,999     2,500,000- 4,999,999  2.50           95.06          5.43             5.46             5.48
50,000 and over    5,000,000 and over   2.00           94.57          5.46             5.49             5.51
</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 %   $     97.45          5.44%            5.47%            5.49%
500-999                 50,000-99,999   4.75           97.30          5.45             5.47             5.49
1,000-2,499           100,000-249,999   4.50           97.05          5.46             5.49             5.51
2,500-4,999           250,000-499,999   4.25           96.79          5.47             5.50             5.52
5,000-9,999           500,000-999,999   3.50           96.04          5.52             5.55             5.57
10,000-24,999     1,000,000- 2,499,999  3.00           95.55          5.55             5.58             5.60
25,000-49,999     2,500,000- 4,999,999  2.50           95.06          5.58             5.61             5.63
50,000 and over    5,000,000 and over   2.00           94.57          5.61             5.64             5.66
</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
Virginia Traditional Trust                        1995                             1996                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        8/1           11/1            2/1            5/1
Distribution Date.....................       8/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3441(1)                                                  $  5.1627
                                                          --------  $.4302 every month  --------
Quarterly Distribution Plan...........  $   .3441(1)   $  1.2978(2)   $  1.2978      $  1.2978        $  5.1947
Semi-Annual Distribution Plan.........  $   .3441(1)   $  1.3032(3)                  $  2.6064        $  5.2137
- --------------------------------------------------------------------------------------------------------------------
<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) Regular 3-month distribution.
(3) The second distribution under the semi-annual distribution plan represents a 3-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 $.07 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 $.01434 per unit per day.
Consequently, on the first Record Date (08/01/95), accrued interest will total
$0.3441 per unit for the 24-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 08/01/95 is $.3441 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01434              Quarterly - $0.01442
                             Semi-Annual - $0.01448
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.
 
- --------------------------------------------------------------------------------
 
                                                          810
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 25.3 years.
The first bond is scheduled to mature in July, 2013, with the last bond maturity
being July, 2025.
 
- -------------------------------------------------------
 
QUALITY OF PORTFOLIO AS RATED BY
STANDARD & POOR'S CORPORATION
OR MOODY'S INVESTORS SERVICES
- -------------------------------------------------------
 
<TABLE>
<S>                       <C>                    <C>
Rating                    Percent of Portfolio
Category                  Par Value
- --------------------------------------------------------------------
AAA                           47%
AA                            24
A                             29
                             ---
                             100%
</TABLE>
 
- -------------------------------------------------------
 
CALL PROTECTION   Bonds are first subject to optional redemption by the issuers
in the years and at the prices shown under the Redemption Provisions column in
the Schedule of Investments. Unless otherwise stated, in subsequent years, bonds
are redeemable at declining prices, but not usually below par value. Some issues
or some portions of issues may also be subject to sinking fund redemption or
extraordinary redemption without premium prior to the dates shown.
 
- -------------------------------------------------------
 
NO CHARGE FOR REDEMPTION   The Trustee, United States Trust Company of New York,
will redeem units at net asset value. In addition, John Nuveen & Co.
Incorporated intends to maintain a secondary market for this Nuveen Tax-Exempt
Unit Trust. Inasmuch as all securities investments are subject to market price
fluctuation, net asset value at the time of redemption could be more or less
than the initial investment.
 
- -------------------------------------------------------
 
REINVESTMENT OPTIONS   Specify automatic reinvestment of trust income, with no
sales charge, to earn compounded dividends with Nuveen mutual funds.
 
- -------------------------------------------------------
 
UNITS OF THE TRUST ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND ARE NOT FEDERALLY INSURED OR OTHERWISE PROTECTED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY AND
INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
- -------------------------------------------------------
 
FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION, INCLUDING CHARGES AND
EXPENSES, ON THIS NUVEEN TAX-EXEMPT UNIT TRUST AND ANY OTHER NUVEEN FUND, CALL
YOUR BROKER . . . OR NUVEEN AT
 
                                 1-800-257-8787
 
READ THE PROSPECTUS CAREFULLY BEFORE YOU INVEST OR SEND MONEY.
<PAGE>
NUVEEN  Tax-Exempt Unit Trusts
     NUVEEN
     ARIZONA
     INSURED
     TRUST 40
 
            Estimated Current Return
            5.22% to 5.43%
            as of 07/06/95
 
            Estimated Long Term Return
            5.36% to 5.57%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67101J 493 Monthly Payment Option
                  67101J 501 Quarterly Payment Option
                  67101J 519 Semi-Annual Payment Option
 
                  Registered in Arizona
                    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, ARIZONA INSURED TRUST 40
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JULY 7, 1995
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    The Industrial Development Authority of the County of              2004 at 102          AAA           Aaa
                  Maricopa, Arizona, Insured Health Facility Refunding
                  Revenue Bonds (Catholic Healthcare West), 1994 Series A,
                  5.00% Due 7/1/15.
     500,000    The Industrial Development Authority of the County of              2003 at 102          AAA           Aaa
                  Maricopa (Arizona), Health Facilities Refunding Revenue
                  Bonds (The Evangelical Lutheran Good Samaritan Society
                  Project), Series 1993, 5.35% Due 12/1/18.
     500,000    Navajo County, Arizona, Pollution Control Corporation,             2003 at 102          AAA           Aaa
                  Pollution Control Revenue Refunding Bonds (Arizona Public
                  Service Company), 1993 Series A, 5.875% Due 8/15/28.
     500,000    City of Phoenix, Arizona, General Obligation Refunding             No Optional          AAA           Aaa
                  Bonds, Series 1995A, 6.25% Due 7/1/16.                              Call
     500,000    City of Phoenix Civic Improvement Corporation (Arizona),           2004 at 102          AAA           Aaa
                  Wastewater System Lease Revenue Refunding Bonds, Series
                  1993, 5.00% Due 7/1/18.
     500,000    Pima County, Arizona, Sewer Revenue Refunding Bonds, Series        2004 at 102          AAA           Aaa
                  1994A, 5.00% Due 7/1/15.
     500,000    Commonwealth of Puerto Rico, Public Improvement Refunding          2003 at 101          AAA           Aaa
                  Bonds, Series 1993 (General Obligation Bonds.), 5.50% Due            1/2
                  7/1/13.
  ----------
  $3,500,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     99.85          5.22%            5.25%            5.27%
500-999                 50,000-99,999   4.75           99.70          5.23             5.26             5.28
1,000-2,499           100,000-249,999   4.50           99.43          5.24             5.27             5.29
2,500-4,999           250,000-499,999   4.25           99.18          5.25             5.29             5.31
5,000-9,999           500,000-999,999   3.50           98.40          5.30             5.33             5.35
10,000-24,999     1,000,000- 2,499,999  3.00           97.90          5.32             5.36             5.38
25,000-49,999     2,500,000- 4,999,999  2.50           97.39          5.35             5.38             5.40
50,000 and over    5,000,000 and over   2.00           96.90          5.38             5.41             5.43
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $     99.85          5.36%            5.38%            5.40%
500-999                 50,000-99,999   4.75           99.70          5.36             5.39             5.41
1,000-2,499           100,000-249,999   4.50           99.43          5.38             5.41             5.42
2,500-4,999           250,000-499,999   4.25           99.18          5.39             5.42             5.44
5,000-9,999           500,000-999,999   3.50           98.40          5.43             5.46             5.48
10,000-24,999     1,000,000- 2,499,999  3.00           97.90          5.46             5.49             5.51
25,000-49,999     2,500,000- 4,999,999  2.50           97.39          5.49             5.52             5.54
50,000 and over    5,000,000 and over   2.00           96.90          5.52             5.55             5.57
</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
Arizona Insured Trust                             1995                             1996                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        8/1           11/1            2/1            5/1
Distribution Date.....................       8/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3472(1)                                                  $  5.2112
                                                          --------  $.4341 every month  --------
Quarterly Distribution Plan...........  $   .3472(1)   $  1.3104(2)   $  1.3104      $  1.3104        $  5.2432
Semi-Annual Distribution Plan.........  $   .3472(1)   $  1.3149(3)                  $  2.6298        $  5.2622
- --------------------------------------------------------------------------------------------------------------------
<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) Regular 3-month distribution.
(3) The second distribution under the semi-annual distribution plan represents a 3-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 $.07 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 $.01447 per unit per day.
Consequently, on the first Record Date (08/01/95), accrued interest will total
$0.3472 per unit for the 24-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 08/01/95 is $.3472 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01447              Quarterly - $0.01456
                             Semi-Annual - $0.01461
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.
 
- --------------------------------------------------------------------------------
 
                                                          810
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 22.6 years.
The first bond is scheduled to mature in July, 2013, with the last bond maturity
being August, 2028.
 
- -------------------------------------------------------
 
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
     CALIFORNIA
     INSURED
     TRUST 250
 
            Estimated Current Return
            First
            Year: 5.40% to 5.62%
            Subsequent
            Years: 5.42% to 5.64%
            as of 07/06/95
 
            Estimated Long Term Return
            5.50% to 5.71%
             50,000 units in a
             diversified $5,000,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  67064W 192 Monthly Payment Option
                  67064W 200 Quarterly Payment Option
                  67064W 218 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 250
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JULY 7, 1995
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  750,000    State of California, Various Purpose General Obligation            2004 at 102          AAA           Aaa
                  Bonds, 6.00% Due 8/1/24.
     750,000    California Statewide Communities Development Authority,            2005 at 102          AAA           Aaa
                  Certificates of Participation (Sutter Health Obligated
                  Group), 6.00% Due 8/15/25. (When issued.)
     750,000    California Educational Facilities Authority, Revenue and           2003 at 100          AAA           Aaa
                  Refunding Bonds (St. Mary's College of California), Series
                  1993, 4.75% Due 10/1/20. (Original issue discount bonds
                  delivered on or about December 7, 1993 at a price of
                  87.017% of principal amount.)
     750,000    The Regents of the University of California, 1993 Refunding        2003 at 102          AAA           Aaa
                  Certificates of Participation (UCLA Central Chiller/
                  Cogeneration Facility), 6.00% Due 11/1/21.
     750,000    The City of Los Angeles, California, Wastewater System             2004 at 102          AAA           Aaa
                  Revenue Bonds, Series 1994-A, 5.875% Due 6/1/24.
     750,000    The Metropolitan Water District of Southern California,            2005 at 102          AAA           Aaa
                  Water Revenue Bonds, 1995 Series A, 5.75% Due 7/1/21.
                  (When issued.)
     500,000    Southern California Public Power Authority, Transmission           2003 at 102          AAA           Aaa
                  Project Revenue Bonds, 1993 Subordinate Refunding Series
                  (Southern Transmission Project), 5.25% Due 7/1/20.
  ----------
  $5,000,000
  ----------
  ----------
</TABLE>
    
 
<PAGE>
- --------------------------------------------------------------------------------
UNIT PRICE, ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM RETURN DEPEND ON
AMOUNT PURCHASED AND PAYMENT OPTION    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                              Estimated Current Return (2)
          AMOUNT PURCHASED                         Public      -----------------------------------------------------------
- -------------------------------------  Sales      Offering         Monthly           Quarterly            Semi-Annual
     Units              Dollars        Charge     Price (1)        Payment            Payment               Payment
- ----------------  -------------------  ------    -----------   ---------------    ---------------    ---------------------
<S>               <C>                  <C>       <C>           <C>       <C>      <C>       <C>      <C>       <C>
50-499                 $5,000-$49,999   4.90 %   $    100.83     (5.40%)  5.42%     (5.44%)  5.45%     (5.45%)  5.47%
500-999                 50,000-99,999   4.75          100.67     (5.41)   5.43      (5.44)   5.46      (5.46)   5.48
1,000-2,499           100,000-249,999   4.50          100.41     (5.43)   5.44      (5.46)   5.47      (5.48)   5.49
2,500-4,999           250,000-499,999   4.25          100.15     (5.44)   5.46      (5.47)   5.49      (5.49)   5.51
5,000-9,999           500,000-999,999   3.50           99.37     (5.48)   5.50      (5.52)   5.53      (5.53)   5.55
10,000-24,999     1,000,000- 2,499,999  3.00           98.86     (5.51)   5.53      (5.54)   5.56      (5.56)   5.58
25,000-49,999     2,500,000- 4,999,999  2.50           98.35     (5.54)   5.56      (5.57)   5.59      (5.59)   5.61
50,000 and over    5,000,000 and over   2.00           97.85     (5.57)   5.59      (5.60)   5.62      (5.62)   5.64
</TABLE>
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                         Estimated Long Term Return (3)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $    100.83          5.50%            5.53%            5.54%
500-999                 50,000-99,999   4.75          100.67          5.51             5.53             5.55
1,000-2,499           100,000-249,999   4.50          100.41          5.52             5.55             5.57
2,500-4,999           250,000-499,999   4.25          100.15          5.53             5.56             5.58
5,000-9,999           500,000-999,999   3.50           99.37          5.58             5.61             5.63
10,000-24,999     1,000,000- 2,499,999  3.00           98.86          5.61             5.64             5.66
25,000-49,999     2,500,000- 4,999,999  2.50           98.35          5.64             5.67             5.68
50,000 and over    5,000,000 and over   2.00           97.85          5.66             5.69             5.71
</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
California Insured Trust                          1995                             1996                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        8/1           11/1            2/1            5/1
Distribution Date.....................       8/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3643(1)                                                  $  5.4650
                                                          --------  $.4554 every month  --------
Quarterly Distribution Plan...........  $   .3643(1)   $  1.3734(2)   $  1.3734      $  1.3734        $  5.4970
Semi-Annual Distribution Plan.........  $   .3643(1)   $  1.3788(3)                  $  2.7576        $  5.5160
- --------------------------------------------------------------------------------------------------------------------
<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) Regular 3-month distribution.
(3) The second distribution under the semi-annual distribution plan represents a 3-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 $.08 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 $.01518 per unit per day.
Consequently, on the first Record Date (08/01/95), accrued interest will total
$0.3643 per unit for the 24-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 08/01/95 is $.3643 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01518              Quarterly - $0.01526
                             Semi-Annual - $0.01532
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.
 
- --------------------------------------------------------------------------------
 
                                                          810
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 27.3 years.
The first bond is scheduled to mature in July, 2020, with the last bond maturity
being August, 2025.
 
- -------------------------------------------------------
 
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
     FLORIDA
     INSURED
     TRUST 213
 
            Estimated Current Return
            5.32% to 5.53%
            as of 07/06/95
 
            Estimated Long Term Return
            5.38% to 5.60%
             35,000 units in a
             diversified $3,500,000
             portfolio of tax-exempt
             bonds rated "AAA"
                  Cusip:
                  6706H4 190 Monthly Payment Option
                  6706H4 208 Quarterly Payment Option
                  6706H4 216 Semi-Annual Payment Option
 
                  Registered in 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, FLORIDA INSURED TRUST 213
SCHEDULE OF INVESTMENTS
DATE OF DEPOSIT JULY 7, 1995
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                                                             Ratings
                                                                                    Optional         -----------------------
  Aggregate            Name of Issuer and Title of Issue Represented               Redemption        Standard
  Principal               by Sponsor's Contracts to Purchase Bonds                 Provisions        & Poor's       Moody's
  <C>       <C> <S>                                                              <C>                 <C>           <C>
  --------------------------------------------------------------------------------------------------------------------------
  $  500,000    State of Florida, Full Faith and Credit, State Board of            2005 at 101          AAA           Aaa
                  Education, Public Education Capital Outlay Bonds, 1994
                  Series B, 5.75% Due 6/1/17. (General Obligation Bonds.)
     500,000    Dade County, Florida, Aviation Revenue Bonds, Series 1995C,        2005 at 102          AAA           Aaa
                  5.75% Due 10/1/25.
     500,000    Lee County, Florida, Transportation Facilities Revenue             2005 at 102          AAA           Aaa
                  Bonds, Series 1995, 5.75% Due 10/1/27. (Original issue
                  discount bonds delivered on or about May 16, 1995 at a
                  price of 93.739% of principal amount.)
     500,000    Orange County (Florida), Health Facilities Authority,              2005 at 102          AAA           Aaa
                  Hospital Revenue Bonds, Series 1995 (Adventist Health
                  System/Sunbelt Obligated Group), 5.75% Due 11/15/25.
     500,000    Orange County, Florida, Tourist Development Tax Revenue            2004 at 102          AAA           Aaa
                  Bonds, Series 1994B, 6.00% Due 10/1/24.
     500,000    City of Tampa, Florida, Allegany Health System Revenue             2003 at 102          AAA           Aaa
                  Bonds, St. Joseph's Hospital, Inc. Issue, Series 1993,
                  5.125% Due 12/1/23. (Original issue discount bonds
                  delivered on or about January 4, 1994 at a price of
                  94.522% of principal amount.)
     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    The sales charges/volume discounts below
apply on all concurrent purchases of any Nuveen trust units, unless any such
purchases are made by a class of investors for which a separate sales charge is
applicable as described more fully in the Prospectus. Estimated Current Return
equals net income divided by offering price. Estimated Long Term Return
represents an average of the yields to maturity (or call) of the Bonds in the
Trust adjusted to reflect expenses and sales charges.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                          Estimated Current Return (2)
                                                              -----------------------------------------------------
          AMOUNT PURCHASED                         Public
- -------------------------------------  Sales      Offering          Monthly         Quarterly       Semi-Annual
     Units              Dollars        Charge     Price (1)         Payment          Payment          Payment
- ----------------  -------------------  ------    -----------     -------------    -------------    -------------
<S>               <C>                  <C>       <C>         <C>                <C>              <C>
50-499                 $5,000-$49,999   4.90 %   $    100.96          5.32%            5.35%            5.37%
500-999                 50,000-99,999   4.75          100.80          5.33             5.36             5.38
1,000-2,499           100,000-249,999   4.50          100.53          5.34             5.37             5.39
2,500-4,999           250,000-499,999   4.25          100.27          5.36             5.39             5.41
5,000-9,999           500,000-999,999   3.50           99.49          5.40             5.43             5.45
10,000-24,999     1,000,000- 2,499,999  3.00           98.98          5.43             5.46             5.48
25,000-49,999     2,500,000- 4,999,999  2.50           98.47          5.45             5.49             5.51
50,000 and over    5,000,000 and over   2.00           97.97          5.48             5.52             5.53
</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 %   $    100.96          5.38%            5.41%            5.43%
500-999                 50,000-99,999   4.75          100.80          5.39             5.42             5.44
1,000-2,499           100,000-249,999   4.50          100.53          5.41             5.43             5.45
2,500-4,999           250,000-499,999   4.25          100.27          5.42             5.45             5.47
5,000-9,999           500,000-999,999   3.50           99.49          5.46             5.49             5.51
10,000-24,999     1,000,000- 2,499,999  3.00           98.98          5.49             5.52             5.54
25,000-49,999     2,500,000- 4,999,999  2.50           98.47          5.52             5.55             5.57
50,000 and over    5,000,000 and over   2.00           97.97          5.55             5.58             5.60
</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
Florida Insured Trust                             1995                             1996                 per Year +
<S>                                     <C>            <C>            <C>            <C>            <C>
- ----------------------------------------------------------------------------------------------------  --------------
Record Date*..........................        8/1           11/1            2/1            5/1
Distribution Date.....................       8/15          11/15           2/15           5/15
- --------------------------------------------------------------------------------------------------------------------
Monthly Distribution Plan.............  $   .3580(1)                                                  $  5.3714
                                                          --------  $.4476 every month  --------
Quarterly Distribution Plan...........  $   .3580(1)   $  1.3500(2)   $  1.3500      $  1.3500        $  5.4034
Semi-Annual Distribution Plan.........  $   .3580(1)   $  1.3554(3)                  $  2.7108        $  5.4224
- --------------------------------------------------------------------------------------------------------------------
<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) Regular 3-month distribution.
(3) The second distribution under the semi-annual distribution plan represents a 3-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 $.07 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 $.01492 per unit per day.
Consequently, on the first Record Date (08/01/95), accrued interest will total
$0.3580 per unit for the 24-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 08/01/95 is $.3580 per unit.
After the first Record Date daily rates of accrual are:
              Monthly - $0.01492              Quarterly - $0.01500
                             Semi-Annual - $0.01506
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.
 
- --------------------------------------------------------------------------------
 
                                                          810
<PAGE>
- -------------------------------------------------------
 
AVERAGE PORTFOLIO LIFE   The average maturity of portfolio bonds is 28.3 years.
The first bond is scheduled to mature in June, 2017, with the last bond maturity
being October, 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.
 
- -------------------------------------------------------
 
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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