BEAR, STEARNS & CO. INC.
250 Park Avenue
New York, New York 10167
(212) 272-2000
May 26, 1994
VIA EDGAR
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549
Re: Insured Municipal Securities Trust, New York Navigator
Insured Series 10
File No. 33-44912
Gentlemen:
As Sponsors of the above-referenced Trust, we are writing this
letter to certify that:
(1) the form of Prospectus that would have been filed under Rule
497(b) of the Securities Act of 1933, does not differ from that contained
in the most recent Post-Effective Amendment to the Registration Statement
on Form S-6 (the "Registration Statement"), and
(2) the text of the most recent Registration Statement was filed
electronically with the Securities and Exchange Commission on April 21,
1994 and became effective April 29, 1994 pursuant to Rule 485(b).
Insured Municipal Securities Trust, New York
Navigator Insured Series 10
BEAR, STEARNS & CO. INC.
GRUNTAL & CO. INCORPORATED
By:
Peter J. DeMarco
as agent for the Sponsors
