<PAGE>
NUVEEN COLORADO NUVEEN
INSURED UNIT TRUST 68 943
- --------------------------------------------------------------------------------
<TABLE>
<S> <C>
RATED: "AAA" NUVEEN TAX-FREE UNIT TRUSTS:
All bonds in this Unit Trust are insured by MBIA For the tax-sensitive, conservative investor.
Insurance Corporation. As a result, the bonds are - Double Tax-Free
rated Aaa by Moody's Investors Service, Inc. - Dependable Income
and/or AAA by Standard & Poor's, the highest - Diversified Portfolios
rating given by each agency. - Top-Rated Municipal Bonds
ESTIMATED CURRENT RETURN: DATE OF DEPOSIT: May 30, 1997
5.01 - 5.22%
ESTIMATED LONG-TERM RETURN:
5.08 - 5.35%
</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 24.9 years
Call Protection Earliest ordinary optional call is 2005
Minimum $5,000 or 50 units, whichever is lower
Investment
Offering Price $101.68 to $98.67 depending on the purchase amount
Cusip 6706E9 556 monthly payment plan
Numbers 6706E9 564 quarterly payment plan
6706E9 572 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 Colorado
</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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<TABLE>
<S> <C>
MATURITY DATES (Description of Chart)
2015-19 42.9%
2020-24 14.3%
2025+ 42.8%
The earliest ordinary optional call date is 2005
YIELD COMPARISON AS OF 05/29/97*
(Description of Yield Comparison Chart)
Nuveen UIT
Yield 5.01%
Tax Equivalent Yield 8.21%
Treasury Bonds
Yield 7.02%
Tax Equivalent Yield 7.39%
Corporate Bonds
Yield 7.87%
</TABLE>
<PAGE>
*COMPARES TRUST AS OF 05/29/97 WITH 30-YEAR TREASURY BONDS AND LEHMAN BROTHERS
INVESTMENT GRADE LONG CORPORATE BOND INDEX AS OF 05/28/97. ASSUMES 39.0%
FEDERAL AND STATE INCOME TAX RATE AND A 5.0% 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.
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 COLORADO 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 Board of Trustees of the University of Northern Colorado, Auxiliary 2007 at 100 AAA Aaa
Facilities System Revenue Improvement Bonds, Series 1997, 5.60% Due 6/1/24.
500,000 Colorado Water Resources and Power Development Authority, Small Water Re- 2007 at 101 AAA Aaa
sources Revenue Bonds, 1997 Series A, 5.60% Due 11/1/17. (When issued.)
500,000 Adams County School District No. 14, Adams County, Colorado, General 2007 at 101 AAA Aaa
Obligation Bonds, Series 1997, 5.50% Due 12/1/16.
500,000 City and County of Denver, Colorado, Airport System Revenue Bonds, Series 2005 at 102 AAA Aaa
1995A, 5.70% Due 11/15/25.
350,000 Fountain Valley Authority (Colorado), Water Treatment Refunding Revenue 2006 at 100 AAA Aaa
Bonds, Series 1996, 5.625% Due 12/1/19.
150,000 City of Thornton, Colorado, General Obligation Water Refunding Capital No Optional AAA Aaa
Appreciation Bonds, Series 1991, 0.00% Due 12/1/15. (Original issue Call
discount bonds delivered on or about March 14, 1991 at a price of 18.927%
of principal amount.)
500,000 Widefield Water and Sanitation District, El Paso County, Colorado, Water 2007 at 102 AAA Aaa
and Sewer Revenue Refunding and Improvement Bonds, Series 1997A, 5.60% Due
12/1/26.
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 FROM COLORADO AND ONE BOND FROM THE TERRITORY OF PUERTO RICO.
</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 05/29/97.
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 $.05. 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 $ 101.68 4.90 % 5.01% 5.08% 5.04% 5.11% 5.06% 5.13 %
500 / $50,000 101.52 4.75 5.02 5.09 5.05 5.12 5.07 5.14
1,000 / $100,000 101.26 4.50 5.03 5.11 5.06 5.14 5.08 5.16
2,500 / $250,000 100.99 4.25 5.04 5.13 5.08 5.16 5.10 5.18
5,000 / $500,000 100.21 3.50 5.08 5.19 5.12 5.22 5.13 5.24
10,000 / $1,000,000 99.69 3.00 5.11 5.23 5.14 5.26 5.16 5.28
25,000 / $2,500,000 99.18 2.50 5.14 5.26 5.17 5.29 5.19 5.31
50,000 / $5,000,000 98.67 2.00 5.16 5.30 5.20 5.33 5.22 5.35
</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 31.5% 34.5% 39.0% 42.5%
<C> <S> <C> <C> <C> <C>
5.01 % 7.31% 7.65% 8.21% 8.71 %
5.02 7.33 7.66 8.23 8.73
5.03 7.34 7.68 8.25 8.75
5.04 7.36 7.69 8.26 8.77
5.08 7.42 7.76 8.33 8.83
5.11 7.46 7.80 8.38 8.89
5.14 7.50 7.85 8.43 8.94
5.16 7.53 7.88 8.46 8.97
</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
07/01/97.
<TABLE>
<CAPTION>
Annual
First Payment Payment Income
Payment Plan Date (per unit) (per unit)
<S> <C> <C> <C> <C>
Initial payment
(all plans) 7/15/97 $ .4364
Monthly plan 8/15/97 .4245 $ 5.0947
Quarterly plan 8/15/97 .4272
11/15/97 1.2816 5.1267
Semi-annual plan 11/15/97 1.7148
5/15/98 2.5722 5.1457
EXAMPLE OF HOW TO CALCULATE YOUR ESTIMATED INCOME:
$10,000 DIVIDED BY 101.73 = 98.299
investment offering price # of units
(as of and accrued purchased
05/29/97) interest
98.299 X $5.0947 = $500.80
# of units annual income annual income
purchased per unit
(monthly plan)
</TABLE>
<PAGE>
NUVEEN NEW YORK NUVEEN
INSURED UNIT TRUST 269 943
- --------------------------------------------------------------------------------
<TABLE>
<S> <C>
RATED: "AAA" NUVEEN TAX-FREE UNIT TRUSTS:
All bonds in this Unit Trust are insured by MBIA For the tax-sensitive, conservative investor.
Insurance Corporation. As a result, the bonds are - Double Tax-Free
rated Aaa by Moody's Investors Service, Inc. - Dependable Income
and/or AAA by Standard & Poor's, the highest - Diversified Portfolios
rating given by each agency. - Top-Rated Municipal Bonds
ESTIMATED CURRENT RETURN: DATE OF DEPOSIT: May 30, 1997
5.15 - 5.36%
ESTIMATED LONG-TERM RETURN:
5.18 - 5.44%
</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 27.3 years
Call Protection Earliest ordinary optional call is 2006
Minimum $5,000 or 50 units, whichever is lower
Investment
Offering Price $101.18 to $98.18 depending on the purchase amount
Cusip 67102K 580 monthly payment plan
Numbers 67102K 598 quarterly payment plan
67102K 606 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)
2017-19 14.3%
2020-22 19.9%
2023-25 0.0%
2026-28 51.5%
2029+ 14.3%
The earliest ordinary optional call date is 2006
YIELD COMPARISON AS OF 05/29/97*
(Description of Yield Comparison Chart)
Nuveen UIT
Yield 5.15%
Tax Equivalent Yield 8.66%
Treasury Bonds
Yield 7.02%
Tax Equivalent Yield 7.54%
Corporate Bonds
Yield 7.87%
</TABLE>
<PAGE>
*COMPARES TRUST AS OF 05/29/97 WITH 30-YEAR TREASURY BONDS AND LEHMAN BROTHERS
INVESTMENT GRADE LONG CORPORATE BOND INDEX AS OF 05/28/97. ASSUMES 40.5%
FEDERAL AND STATE INCOME TAX RATE AND A 6.85% 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.
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 Dormitory Authority of the State of New York, New School for Social 2007 at 102 AAA Aaa
Research, Insured Revenue Bonds, Series 1997, 5.75% Due 7/1/26.
300,000 Dormitory Authority of the State of New York, Pace University, Insured 2007 at 102 AAA Aaa
Revenue Bonds, Series 1997, 5.75% Due 7/1/26.
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 Metropolitan Transportation Authority (New York), Commuter Facilities 2007 at 101 AAA Aaa
Revenue Bonds, Series 1997A, 5.70% Due 7/1/17. 1/2
500,000 Monroe-Woodbury Central School District, Orange County, New York, School 2006 at 102 AAA Aaa
District Bonds, 1997, 5.70% Due 5/15/27. (General Obligation Bonds.)
505,000 The City of New York (New York), General Obligation Bonds, Fiscal 1997 2007 at 101 AAA Aaa
Series I, 6.25% Due 4/15/27.
500,000 New York City (New York), Municipal Water Finance Authority, Water and 2007 at 101 AAA Aaa
Sewer System Revenue Bonds, Fiscal 1997 Series B, 5.75% Due 6/15/29.
195,000 Municipal Assistance Corporation for the City of Troy (New York), General No Optional AAA Aaa
Resolution Bonds, Series 1996B, 0.00% Due 1/15/20. (Original issue discount Call
bonds delivered on or about November 26, 1996 at a price of 27.244% of
principal amount.)
----------------------------------------------------------------------------------------------------------------
$ 3,500,000 TOTAL 8 BONDS FROM NEW YORK.
</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 05/29/97.
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 $.06. 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 $ 101.18 4.90 % 5.15% 5.18% 5.18% 5.21% 5.20% 5.23 %
500 / $50,000 101.02 4.75 5.16 5.18 5.19 5.21 5.21 5.23
1,000 / $100,000 100.75 4.50 5.17 5.21 5.20 5.24 5.22 5.26
2,500 / $250,000 100.49 4.25 5.18 5.22 5.21 5.25 5.23 5.27
5,000 / $500,000 99.71 3.50 5.22 5.28 5.25 5.31 5.27 5.33
10,000 / $1,000,000 99.20 3.00 5.25 5.32 5.28 5.35 5.30 5.37
25,000 / $2,500,000 98.69 2.50 5.28 5.35 5.31 5.38 5.33 5.40
50,000 / $5,000,000 98.18 2.00 5.30 5.39 5.34 5.42 5.36 5.44
</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% 35.5% 40.5% 43.5%
<C> <S> <C> <C> <C> <C>
5.15 % 7.69% 7.98% 8.66% 9.12 %
5.16 7.70 8.00 8.67 9.13
5.17 7.72 8.02 8.69 9.15
5.18 7.73 8.03 8.71 9.17
5.22 7.79 8.09 8.77 9.24
5.25 7.84 8.14 8.82 9.29
5.28 7.88 8.19 8.87 9.35
5.30 7.91 8.22 8.91 9.38
</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
07/01/97.
<TABLE>
<CAPTION>
Annual
First Payment Payment Income
Payment Plan Date (per unit) (per unit)
<S> <C> <C> <C> <C>
Initial payment
(all plans) 7/15/97 $ .4482
Monthly plan 8/15/97 .4338 $ 5.2077
Quarterly plan 8/15/97 .4365
11/15/97 1.3095 5.2397
Semi-annual plan 11/15/97 1.7520
5/15/98 2.6280 5.2587
EXAMPLE OF HOW TO CALCULATE YOUR ESTIMATED INCOME:
$10,000 DIVIDED BY 101.24 = 98.775
investment offering price # of units
(as of and accrued purchased
05/29/97) interest
98.775 X $5.2077 = $514.39
# of units annual income annual income
purchased per unit
(monthly plan)
</TABLE>
