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Alcatraz Escape — Part 17
Page 18
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This is the middle of the periscope broken apart, which
shows the detail of construction since the length of the
periscope was not available in the length of the art board.
Note overlapping arrangement to provide additional strength
at the joint. Small nails were used to assemble. The
black edging material is book binding tape.
(Photo by sa QD 6/14/62)
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1197
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