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Alcatraz Escape — Part 8

106 pages · May 08, 2026 · Document date: Jun 25, 1962 · Broad topic: Prisons & Escapes · Topic: Alcatraz Escape · 105 pages OCR'd
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Mee 4 “_ 7/13/62 res: “ile rat \recaemss — it a opts 7 i aad 4 o: The life preservers (your sunbers. one » rane » the . oe pertially completed pontoon ( munber §), the fabris. o with the personal items (your sumber 6) identifiable with the Anglia brothers. * -and the raincoat (your sumber 1) are all cempesed of the sane re material, namely, rubber-coated cotton fabric... The submitted life al preservers :vere-inflated until firm. . It was mécesigry te first seal ... three small punctures in the life proserver Jogated in San Fraacisco Bay (your.numsber 4). Weights were placed om these°life peeservers. fhe specinen from om top of "B" cell (your asunder 3) appeared to be | completelyiairtight remataing firm for several-hourg. The life... * preserver Jocated at Fort Cromhite Beach and the one located in San Fraacisco Bay lost acst of tua air in about anzpour. Hovever, ~.._ ' the rate of deflation was slow aad aad preasure, could a i doubt be ‘ maintained by south. — Bs ; a All of the gumitted sav blades ta. your, sieas At, 16 and “20 appear to be homemade. It appears that pieces | (ptee) “from your number 16 ald your sumber 17 could represent aa alsfrom which the | homenade sats were made. Some of these steel te are 11/16" wide and approximately .015" thick. Other fr ts are 1/2" wide and approxibately ,021" thick. In dimensions and appesraiice the 11/13" : steel strips: are similar te netal from a-large spring. Steel vending strap material for use ia prepar hexes Jar ahipnce is usually . wsofter than-the instant strip metal bet 1£. Iecks etrivingly * stntlar.” onerse pak vs" wide amnion terial ce not: Knows: eS ar 31
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