<PAGE>
NUVEEN
NUVEEN NATIONAL
INSURED UNIT TRUST 326 884
- --------------------------------------------------------------------------------
<TABLE>
<S> <C>
RATED: "AAA" NUVEEN TAX-FREE UNIT TRUSTS:
ESTIMATED CURRENT RETURN: For the tax-sensitive, conservative investor.
5.21 - 5.42% - Tax-Free
ESTIMATED LONG-TERM RETURN: - Dependable Income
5.26 - 5.53% - Diversified Portfolios
DATE OF DEPOSIT: August 16, 1996 - Top-Rated Municipal Bonds
</TABLE>
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 FDIC OR
ANY OTHER FEDERAL AGENCY AND INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE
LOSS OF PRINCIPAL.
- --------------------------------------------------------------------------------
QUICK FACTS ABOUT THIS UNIT TRUST
<TABLE>
<S> <C>
Tax Status Income is exempt from federal income tax but may
be subject to state and local tax. Capital gains
are taxable.
Total Principal $10,000,000 in 100,000 units
Average Life 27.2 years
Call Protection Earliest ordinary optional call is 2004
Minimum $5,000 or 50 units, whichever is lower
Investment
Offering Price $99.96 to $97.00 depending on the purchase amount
Cusip 6710A5 196 monthly payment plan
Numbers 6710A5 204 quarterly payment plan
6710A5 212 semi-annual payment plan
Insurance Individual bonds (not units) are fully insured by
MBIA Insurance Corporation, which guarantees
timely payment of interest and principal.
Registration Registered in all states
</TABLE>
<TABLE>
<S> <C>
Payment Investors may choose to receive monthly, quarterly
Plans or semi-annual interest payments.
Bond Calls Most municipal bonds are subject to optional bond
calls. Bonds are usually called at a premium price
and generally not below par value.
Sales Charge The sales charge is a one-time expense included in
the Public Offering Price.
Letter Investors may use a Letter of Intent to get
of Intent reduced sales charges on purchases made over a
(LOI) 13-month period (and to take advantage of dollar
cost averaging). Minimum LOI investment $50,000.
Redemptions Units can be redeemed on any business day at no
charge. Units are redeemed at their current market
value.
Reinvestment Interest income and returned principal can be
reinvested with no sales charge into Nuveen tax-
free mutual or money market funds. For more
information obtain a prospectus.
</TABLE>
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PORTFOLIO INCOME DIVERSIFICATION
<TABLE>
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Illinois 20.9 % Iowa 9.9 % Michigan 21.4 %
New York 5.3 Pennsylvania 10.1 Rhode Island 10.4
Virginia 10.9 Wyoming 11.1
</TABLE>
<TABLE>
<S> <C>
MATURITY DATES (Descrtiption of Chart)
2019-21 25.0%
2022-24 30.2%
2025+ 44.8%
</TABLE>
<PAGE>
<TABLE>
<S> <C>
The earliest ordinary optional call date is 2004
YIELD COMPARISON AS OF 08/15/96*
(Descrition of Yield Comparison Chart)
Nuveen UIT
Pre-Tax 8.14%
Tax Equivalent Yield 5.21%
Treasury Bonds
Pre-Tax 7.16%
Tax Equivalent Yield 6.80%
Corporate Bonds
Yield 7.84%
</TABLE>
*COMPARES TRUST WITH 30-YEAR TREASURY BONDS AND LEHMAN BROTHERS INVESTMENT
GRADE LONG CORPORATE BOND INDEX. ASSUMES 36.0% FEDERAL AND 5.0% STATE INCOME
TAX RATES. TREASURY BONDS ARE SUBJECT TO FEDERAL BUT NOT STATE INCOME TAXES;
CORPORATE BONDS ARE GENERALLY SUBJECT TO BOTH. TREASURY BONDS, UNLIKE
MUNICIPAL BONDS, ARE GUARANTEED BY THE U.S. GOVERNMENT. THE LEHMAN BROTHERS
INVESTMENT GRADE LONG CORPORATE BOND INDEX IS CALCULATED AS OF 7/31/96.
CALL 1.800.257.8787 FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION
INCLUDING CHARGES AND EXPENSES.
READ THE PROSPECTUS CAREFULLY BEFORE INVESTING.
<PAGE>
- --------------------------------------------------------------------------------
BONDS THIS NATIONAL INSURED UNIT TRUST CONTAINS
<TABLE>
<CAPTION>
RATINGS
PRINCIPAL EARLIEST CALL ----------
AMOUNT BOND ISSUE DATE AND PRICE S&P MOODY'S
<C> <S> <C> <C><C>
----------------------------------------------------------------------------------------------------------------
$ 1,000,000 The County of Cook, Illinois, General Obligation Capital Improvement Bonds, AAA Aaa
Series 1996, 5.875% Due 11/15/22. 2006 at 101
915,000 Illinois Health Facilities Authority, Revenue Bonds, Series 1994A AAA Aaa
(Northwestern Memorial Hospital), 6.00% Due 8/15/24. 2004 at 102
500,000 Metropolitan Pier and Exposition Authority (Illinois), McCormick Place AAA Aaa
Expansion Project Bonds, Series 1992A, 0.00% Due 6/15/19. (Original issue
discount bonds delivered on or about January 5, 1993 at a price of 17.281%
of principal amount.) No Optional
Call
1,000,000 Iowa Finance Authority, Private College Refunding Revenue Bonds (Drake AAA Aaa
University Project), Series 1996, 5.40% Due 12/1/21. 2005 at 102
1,100,000 Alpena Public Schools, Counties of Alpena and Presque Isle, State of AAA Aaa
Michigan, 1996 School Building and Site Bonds, 5.625% Due 5/1/22. (General
Obligation Bonds.) 2007 at 100
985,000 City of Detroit, Michigan, Water Supply System Revenue Second Lien Bonds, AAA Aaa
Series 1995-A, 5.50% Due 7/1/25. 2005 at 101
500,000 New York City (New York), Municipal Water Finance Authority, Water and AAA Aaa
Sewer System Revenue Bonds, Fiscal 1996 Series B, 5.75% Due 6/15/26.
(Original issue discount bonds delivered on or about May 16, 1996 at a
price of 93.892% of principal amount.) 2006 at 101
1,000,000 Delaware County Authority (Commonwealth of Pennsylvania), Hospital Revenue AAA Aaa
Bonds, Series of 1995 (Delaware County Memorial Hospital), 5.50% Due
8/15/19. (Original issue discount bonds delivered on or about July 27, 1995
at a price of 94.645% of principal amount.) 2005 at 102
1,000,000 Rhode Island Health and Educational Building Corporation, Higher Education AAA Aaa
Facility Revenue Bonds, Rhode Island School of Design Issue, Series 1996,
5.625% Due 6/1/26. (Original issue discount bonds will be delivered on or
about August 20, 1996 at a price of 93.763% of principal amount.)(When
issued.) 2006 at 102
1,000,000 City of Norfolk, Virginia, Water Revenue Bonds, Series 1995, 5.90% Due AAA Aaa
11/1/25. 2005 at 102
1,000,000 Sweetwater County, Wyoming, Pollution Control Revenue Refunding Bonds AAA Aaa
(Idaho Power Company Project), Series 1996A, 6.05% Due 7/15/26. (When
issued.) 2006 at 102
----------------------------------------------------------------------------------------------------------------
$10,000,000 TOTAL 11 BONDS FROM 8 STATES
</TABLE>
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HOW TO DETERMINE YOUR INCOME AND YIELD
HOW TO CALCULATE YOUR RETURN
<TABLE>
<S> <C>
The estimated current return is the net income the sales charge, and returns are as of 08/15/96.
divided by the offering price. Estimated long-term As of this date, Units are offered at the public
return is a measure of the return to the investor offering price plus accrued interest to the
expected to be earned over the estimated life of settlement date of $.07. Returns and prices will
the Unit Trust. The public offering prices, which fluctuate.
include
</TABLE>
<TABLE>
<CAPTION>
Public Estimated Return (CURRENT/Long Term)
Breakpoints Offering Sales -------------------------------------------------
Units / Dollars Price Charge Monthly Plan Quarterly Plan Semi-Annual Plan
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
50 / $5,000 $ 99.96 4.90 % 5.21% 5.26% 5.24% 5.29% 5.26% 5.31 %
500 / $50,000 99.80 4.75 5.21 5.26 5.25 5.30 5.27 5.32
1,000 / $100,000 99.54 4.50 5.23 5.28 5.26 5.32 5.28 5.34
2,500 / $250,000 99.28 4.25 5.24 5.30 5.27 5.34 5.29 5.36
5,000 / $500,000 98.51 3.50 5.28 5.36 5.32 5.40 5.33 5.42
10,000 / $1,000,000 98.00 3.00 5.31 5.40 5.34 5.44 5.36 5.46
25,000 / $2,500,000 97.50 2.50 5.34 5.43 5.37 5.47 5.39 5.49
50,000 / $5,000,000 97.00 2.00 5.37 5.47 5.40 5.51 5.42 5.53
</TABLE>
HOW TO DETERMINE YOUR
TAXABLE EQUIVALENT YIELD
The table shows the approximate yield an investor must get from a taxable
investment to match the estimated current return from this Unit Trust.
<TABLE>
<CAPTION>
Taxable Equivalent Yield (by
UNIT TRUST tax bracket)
RETURN 28.0% 31.0% 36.0% 39.6%
<C> <S> <C> <C> <C> <C>
5.21 % 7.24% 7.55% 8.14% 8.63%
5.21 7.24 7.55 8.14 8.63
5.23 7.26 7.58 8.17 8.66
5.24 7.28 7.59 8.19 8.68
5.28 7.33 7.65 8.25 8.74
5.31 7.38 7.70 8.30 8.79
5.34 7.42 7.74 8.34 8.84
5.37 7.46 7.78 8.39 8.89
</TABLE>
JOHN NUVEEN & CO. INCORPORATED
333 WEST WACKER DRIVE, CHICAGO, IL 60606
HOW TO CALCULATE YOUR INCOME
The table shows expected interest payments for monthly, quarterly and
semi-annual plans. Payments will remain relatively constant as long as the Unit
Trust's size, composition and expenses remain the same. The first record date is
10/01/96.
<TABLE>
<CAPTION>
Annual
First Payment Payment Income
Payment Plan Date (per unit) (per unit)
<S> <C> <C> <C> <C>
Initial partial
payment (all
plans) 10/15/96 $ .6502
Monthly plan 11/15/96 .4335 $ 5.2043
Quarterly plan 11/15/96 .4362
2/15/97 1.3086 5.2363
Semi-annual plan 11/15/96 .4377
5/15/97 2.6262 5.2553
EXAMPLE OF HOW TO CALCULATE YOUR ESTIMATED INCOME:
$10,000 DIVIDED BY 100.03 = 99.970
investment offering price # of units
(as of and accrued purchased
08/15/96) interest
99.970 X $5.2043 = $520.27
# of units annual income annual income
purchased per unit
(monthly plan)
</TABLE>
<PAGE>
NUVEEN
NUVEEN NEW YORK
INSURED UNIT TRUST 256 884
- --------------------------------------------------------------------------------
<TABLE>
<S> <C>
RATED: "AAA" NUVEEN TAX-FREE UNIT TRUSTS:
ESTIMATED CURRENT RETURN: For the tax-sensitive, conservative investor.
5.12 - 5.33% - Double Tax-Free
ESTIMATED LONG-TERM RETURN: - Dependable Income
5.13 - 5.41% - Diversified Portfolios
DATE OF DEPOSIT: August 16, 1996 - Top-Rated Municipal Bonds
</TABLE>
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 FDIC OR
ANY OTHER FEDERAL AGENCY AND INVOLVE INVESTMENT RISK, INCLUDING THE POSSIBLE
LOSS OF PRINCIPAL.
- --------------------------------------------------------------------------------
QUICK FACTS ABOUT THIS UNIT TRUST
<TABLE>
<S> <C>
Tax Status Income is exempt from federal and state income
taxes. Capital gains are taxable.
Total Principal $3,500,000 in 35,000 units
Average Life 24.7 years
Call Protection Earliest ordinary optional call is 2006
Minimum $5,000 or 50 units, whichever is lower
Investment
Offering Price $102.12 to $99.10 depending on the purchase amount
Cusip 67102K 192 monthly payment plan
Numbers 67102K 200 quarterly payment plan
67102K 218 semi-annual payment plan
Insurance Individual bonds (not units) are fully insured by
MBIA Insurance Corporation, which guarantees
timely payment of interest and principal.
Registration Registered in New York
</TABLE>
<TABLE>
<S> <C>
Payment Investors may choose to receive monthly, quarterly
Plans or semi-annual interest payments.
Bond Calls Most municipal bonds are subject to optional bond
calls. Bonds are usually called at a premium price
and generally not below par value.
Sales Charge The sales charge is a one-time expense included in
the Public Offering Price.
Letter Investors may use a Letter of Intent to get
of Intent reduced sales charges on purchases made over a
(LOI) 13-month period (and to take advantage of dollar
cost averaging). Minimum LOI investment $50,000.
Redemptions Units can be redeemed on any business day at no
charge. Units are redeemed at their current market
value.
Reinvestment Interest income and returned principal can be
reinvested with no sales charge into Nuveen tax-
free mutual or money market funds. For more
information obtain a prospectus.
</TABLE>
- --------------------------------------------------------------------------------
<TABLE>
<S> <C>
MATURITY DATES (Description of Chart)
2014-17 28.6%
2018-21 28.5%
2022-25 28.6%
2026+ 14.3%
The earliest ordinary optional call date is 2006
YIELD COMPARISON AS OF 08/15/96*
(Description of Yield Comparison Chart)
Nuveen UIT
Pre-Tax 8.61%
Tax Equivalent Yield 5.12%
Treasury Bonds
Pre-Tax 7.32%
Tax Equivalent Yield 6.80%
Corporate Bonds
Yield 7.84%
</TABLE>
<PAGE>
*COMPARES TRUST WITH 30-YEAR TREASURY BONDS AND LEHMAN BROTHERS INVESTMENT
GRADE LONG CORPORATE BOND INDEX. ASSUMES 40.5% FEDERAL AND STATE INCOME TAX
RATE AND A 7.125% STATE INCOME TAX RATE. TREASURY BONDS ARE SUBJECT TO FEDERAL
BUT NOT STATE INCOME TAXES; CORPORATE BONDS ARE GENERALLY SUBJECT TO BOTH.
TREASURY BONDS, UNLIKE MUNICIPAL BONDS, ARE GUARANTEED BY THE U.S. GOVERNMENT.
THE LEHMAN BROTHERS INVESTMENT GRADE LONG CORPORATE BOND INDEX IS CALCULATED
AS OF 7/31/96.
CALL 1.800.257.8787 FOR A PROSPECTUS CONTAINING MORE COMPLETE INFORMATION
INCLUDING CHARGES AND EXPENSES.
READ THE PROSPECTUS CAREFULLY BEFORE INVESTING.
<PAGE>
- --------------------------------------------------------------------------------
BONDS THIS NEW YORK INSURED UNIT TRUST CONTAINS
<TABLE>
<CAPTION>
RATINGS
PRINCIPAL EARLIEST CALL ----------
AMOUNT BOND ISSUE DATE AND PRICE S&P MOODY'S
<C> <S> <C> <C><C>
----------------------------------------------------------------------------------------------------------------
$ 500,000 State of New York, General Obligation Bonds, Environmental Quality 1986 2006 at 101 AAA Aaa
Bonds, 5.00% Due 1/15/14.
500,000 Dormitory Authority of the State of New York, Mental Health Services 2006 at 102 AAA Aaa
Facilities Improvement Revenue Bonds, Series 1996B, 5.125% Due 8/15/21.
(Original issue discount bonds delivered on or about March 27, 1996 at a
price of 93.599% of principal amount.)(General Obligation Bonds.)
500,000 New York State Energy Research and Development Authority, Gas Facilities 2006 at 102 AAA Aaa
Revenue Bonds, 1996 Series (The Brooklyn Union Gas Company Project), 5.50%
Due 1/1/21.
500,000 New York State Urban Development Corporation, Revenue Bonds (Sports 2006 at 102 AAA Aaa
Facility Assistance Program), 1996 Series A, 5.50% Due 4/1/16.
500,000 The City of New York (New York), General Obligation Bonds, Fiscal 1996 2006 at 101 AAA Aaa
Series J, 6.00% Due 2/15/24. 1/2
500,000 New York City (New York), Municipal Water Finance Authority, Water and 2006 at 101 AAA Aaa
Sewer System Revenue Bonds, Fiscal 1996 Series B, 5.75% Due 6/15/26.
(Original issue discount bonds delivered on or about May 16, 1996 at a
price of 93.892% of principal amount.)
500,000 Commonwealth of Puerto Rico, Public Improvement Bonds of 1996 (General 2006 at 101 AAA Aaa
Obligation Bonds.), 5.40% Due 7/1/25. 1/2
----------------------------------------------------------------------------------------------------------------
$ 3,500,000 TOTAL 7 BONDS
</TABLE>
- --------------------------------------------------------------------------------
HOW TO DETERMINE YOUR INCOME AND YIELD
HOW TO CALCULATE YOUR RETURN
<TABLE>
<S> <C>
The estimated current return is the net income the sales charge, and returns are as of 08/15/96.
divided by the offering price. Estimated long-term As of this date, Units are offered at the public
return is a measure of the return to the investor offering price plus accrued interest to the
expected to be earned over the estimated life of settlement date of $.07. Returns and prices will
the Unit Trust. The public offering prices, which fluctuate.
include
</TABLE>
<TABLE>
<CAPTION>
Public Estimated Return (CURRENT/Long Term)
Breakpoints Offering Sales -------------------------------------------------
Units / Dollars Price Charge Monthly Plan Quarterly Plan Semi-Annual Plan
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
50 / $5,000 $ 102.12 4.90 % 5.12% 5.13% 5.15% 5.17% 5.17% 5.19 %
500 / $50,000 101.96 4.75 5.13 5.14 5.16 5.18 5.18 5.20
1,000 / $100,000 101.70 4.50 5.14 5.16 5.17 5.20 5.19 5.22
2,500 / $250,000 101.43 4.25 5.15 5.18 5.18 5.22 5.20 5.24
5,000 / $500,000 100.64 3.50 5.19 5.24 5.22 5.28 5.24 5.30
10,000 / $1,000,000 100.12 3.00 5.22 5.28 5.25 5.32 5.27 5.34
25,000 / $2,500,000 99.61 2.50 5.25 5.31 5.28 5.35 5.30 5.37
50,000 / $5,000,000 99.10 2.00 5.27 5.35 5.31 5.39 5.33 5.41
</TABLE>
HOW TO DETERMINE YOUR
TAXABLE EQUIVALENT YIELD
The table shows the approximate yield an investor must get from a taxable
investment to match the estimated current return from this Unit Trust.
<TABLE>
<CAPTION>
Taxable Equivalent Yield (by tax
UNIT TRUST bracket)
RETURN 33.0% 36.0% 40.5% 44.0%
<C> <S> <C> <C> <C> <C>
5.12 % 7.64% 8.00% 8.61% 9.14 %
5.13 7.66 8.02 8.62 9.16
5.14 7.67 8.03 8.64 9.18
5.15 7.69 8.05 8.66 9.20
5.19 7.75 8.11 8.72 9.27
5.22 7.79 8.16 8.77 9.32
5.25 7.84 8.20 8.82 9.38
5.27 7.87 8.23 8.86 9.41
</TABLE>
JOHN NUVEEN & CO. INCORPORATED
333 WEST WACKER DRIVE, CHICAGO, IL 60606
HOW TO CALCULATE YOUR INCOME
The table shows expected interest payments for monthly, quarterly and
semi-annual plans. Payments will remain relatively constant as long as the Unit
Trust's size, composition and expenses remain the same. The first record date is
10/01/96.
<TABLE>
<CAPTION>
Annual
First Payment Payment Income
Payment Plan Date (per unit) (per unit)
<S> <C> <C> <C> <C>
Initial partial
payment (all
plans) 10/15/96 $ .6529
Monthly plan 11/15/96 .4353 $ 5.2264
Quarterly plan 11/15/96 .4380
2/15/97 1.3140 5.2584
Semi-annual plan 11/15/96 .4395
5/15/97 2.6370 5.2774
EXAMPLE OF HOW TO CALCULATE YOUR ESTIMATED INCOME:
$10,000 DIVIDED BY 102.19 = 97.856
investment offering price # of units
(as of and accrued purchased
08/15/96) interest
97.856 X $5.2264 = $511.43
# of units annual income annual income
purchased per unit
(monthly plan)
</TABLE>
