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U.S. Navy Diaphragm Mk V Gas Mask

The U.S. Navy Diaphragm Mk V Gas Mask bears no resemblance to the previous U.S. Navy Diaphragm masks.  It featured a single plastic panoramic lens and dual cheek filters.  This example was made by Acushnet in 1959.

 

Similar masks in my collection:  U.S. NC-1

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