SEARS MUNICIPAL TRUST LONG TERM PORTFOLIO SERIES 115, 497J, 1994-12-23

SEARS MUNICIPAL TRUST LONG TERM PORTFOLIO SERIES 115
497J, 1994-12-23

Previous: IDS SPECIAL TAX EXEMPT SERIES TRUST, 485APOS, 1994-12-23

Next: DEFINED ASSET FUNDS MUNICIPAL INVT TR FD INSURED SERIES 182, 497, 1994-12-23



                                             Rule 497(j)
                                             Reg. No. 33-42313
                                             Reg. No. 33-28866
                                             Reg. No. 33-18674
                                   

Pursuant to Rule 497 (j) promulgated under the Securities Act of
1933, the Registrant, Dean Witter Select Municipal Trust, Insured
California Series 50, Insured Pennsylvania Series 6 and Long Term
Portfolio Series 115, hereby certifies as follows:

1)   the form of prospectus that would have been filed under
     paragraph (b) of Rule 497 does not differ from that
     contained in the most recent amendment to the registration
     statement, and

2)   the text of the said amendment to the registration statement
     has been filed electronically.


                         DEAN WITTER SELECT MUNICIPAL TRUST,
                         INSURED CALIFORNIA SERIES 50
                         INSURED PENNSYLVANIA SERIES 6
                         LONG TERM PORTFOLIO SERIES 115
                              
                         By:  Dean Witter Reynolds Inc.
                              (Depositor)


                              Michael D. Browne
                              Michael D. Browne
                              Authorized Signatory