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NUVEEN TAX-EXEMPT UNIT TRUSTS
SUPPLEMENT TO THE PROSPECTUS
Commencing September 1, 1995, The Chase Manhattan Bank (National Association)
will become successor to United States Trust Company of New York as Trustee of
the Nuveen Tax-Exempt Unit Trusts. This change will have no material effect
upon Unitholders of the Nuveen Tax-Exempt Unit Trusts. In addition, the
address and phone number for the Trustee listed in the Prospectus will remain
the same.
Also commencing September 1, 1995, the calculation of Estimated Long Term
Return as set forth in the Prospectus for each Nuveen Tax-Exempt Unit Trust
will be modified in accordance with accepted unit investment trust industry
practice as follows:
"In the calculation of Estimated Long Term Return, the average yield for the
Trust's portfolio is derived by weighting each Bond's yield by the market value
of the Bond and by the amount of time remaining to the date to which the Bond
is priced. The weighted average yield is then adjusted to reflect estimated
expenses, is compounded, and is reduced by a factor which represents the
amortization of the sales charge over the expected average life of the Trust.
August 31, 1995
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Nuveen Tax-Exempt Unit Trust, National Series 123
RULE 497(d)
SEC FILE NO. 2-63478
September 5, 1995
This is the first page of the Prospectus Supplement dated August 31, 1995 of
the Prospectus for the above named series.
