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Unknown Romanian, possibly industrial, mask. It is the only one ever found and what makes it special is the valve asembly, it is quite similar to the polish (old) MP6. : gasmasks
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Yes, I really did wear my M40 Promask to a local awards ceremony (didn't win, but worth it!) : gasmasks
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U.S. Army Surplus M40 Gas Mask M40A1 Field Protective Gas Mask M-40 | Gas mask, M40 gas mask, Gas mask for sale
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