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‘G FD-302 (Rev. 1-25-80) _ FEDERAL BUREAU OF INVESTIGA, ! 6/22/62 Date 47 2. RR 2:2 Force, Alcatraz Penitentiary on June 12, 1962, located a homemade periscope approximately three and one-half feet long in of cell block B which he furnished to SA nm June 12, 1962, = z we 6/12/62 Alcatraz Island, California SF 76-2887 On ot File # by Date dictated Thin document contains neither recommendations nor conclugions of the FBI. It 4s the property of the FBI and Is loaned to your agency; it and its contents are not to be distributed wilifmde your agency. ot A 2 e