◆ SpookStack

o wl, PD-36 (Rev. 12-13-56) . . ‘Ca FBI ‘Date: te a ee ee (Type in plain text or code) (Priority or Method of Mailing) | * Set 7 = relates to replica of ventilator grills made by convicts to keep guards from discovering holes they had dug in wali leading from cellblock into utility corridor. Set -8 - shows pictures of two pad $, one recovered in the prison which belonged to inmate who did not escape and the ey) Francisco Bay. Set 9 - shows full-length views of prisoners' raincoats similar to 7 es make 1life naftea and "Maa West" Jackets, other recovered off the snore of Angel Island in San al Pictures also show a life raft which was left at the prison and not used as being impractical. Set 10~ shows miscellaneous tools recovered by FBI which had been in possession of escaping inmates. Photographs also show periscope used by inmates to watch for guards. Set 11+ consists of photographs of three different magazine articles recovered by FBI from prisoners’ cells. These articles all relate to the making of life jackets and rafts. All of the movable items represented in the pictures are in the possession of the San Francisco Division of the FBI and me ee a are being held as evidence in connection with the the escape. ee . nves tigation of | tel ! those cut up TS Maks aire Parts ana Mas Wes acke ts. Approved: Sent _._ UM Per Special Agent in Charge ry oe Ly