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7-4 (Bev. 11-20-74) . oo} REPORT fq “ey . uo Of Lut F an LADO ATORY a FEBER"L BUREA GF ENVESTIC! TYLOR WASHIt eGTCK, 2. C. 20525 Ta, ADIC, Los Angeles (9-5949) From: Director, Federal Bureau of Investigation Re: UNSUB; FRANK SINATRA - VICTIM; EXTORTION 00: Los Angeles Reference Airtel 9/21/76 November 3, 1976 FRI FILE NO. . D-760928009 IK LAR. NO, YOUR NO. The material described below has been searched in the follawirg file without effecting an a identification: Anonymous Copies have The submitted material is a MATERIAL SUBMITTED: ol Envelope postmarked "CHTCAGO, IL Letter File been added ta this file for fulure refcreuce. temporarily retained. 606 PM 20 AUG 1976" bearing the typewritten address "Ceasar's Palalce Strip on tire Las Vegas, Nev. Q2 Accompanying typewritten note beginning "Judge Markoviz and Korshak ..." Page 1 (over) -22 Yo em i Dat a