INSURED MUN SEC TR SE 33 NY NAV INS SE 17 NJ INS SE 13 MUN, 497J, 1996-05-23

INSURED MUN SEC TR SE 33 NY NAV INS SE 17 NJ INS SE 13 MUN
497J, 1996-05-23

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REICH & TANG DISTRIBUTORS L.P.
600 Fifth Avenue
New York, New York 10020
(212) 830-5200





                                   May 23, 1996


VIA EDGAR

Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549

                  Re:   Insured Municipal Securities Trust, Series 33
                        File No. 33-58167

Gentlemen:

            As Sponsor 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 25, 1996 and
became effective April 30, 1996 pursuant to Rule 485(b).

                                    Insured Municipal Securities Trust,
                                    Series 33


                                    REICH & TANG DISTRIBUTORS L.P.


                                       By:/s/ Peter J. DeMarco
                                          --------------------
                                          Peter J. DeMarco
                                          Authorized Signatory


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