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A U.S. Navy Mark V-Mod-1 diving helmet marked Diving Equipment and Salvage Co, Inc. Milwaukee; image credit on full record. |
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Detail of nameplate on the Mark V-Mod-1 diving helmet; image credit on full record. |
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Valve detail on the Mark V-Mod-1 diving helmet; image credit on full record. |
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Backside of the Mark V-Mod-1 diving helmet; image credit on full record. |