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U.S. Army M3 Diaphragm Gas Mask
The U.S. Army M3 Diaphragm Gas Mask was produced in gray (green) rubber, first with black metal parts and later with blue/green metal parts. This example was made by General Tire & Rubber in 1941.
Similar masks in my collection: U.S. Army M3A1 Diaphragm, U.S. NORBA Type A-3, U.S. ND Mk IV
Manufacturer, date, and lot stamps on chin "LOT C1 6-41 GENERAL E42 R92" "M10" "C5"
Manufacturer and date stamps on flutter valve "CRCo 1-41" "76"
Stamp on speech diaphragm "N"
Stamp on head strap
Filter stamps top view "US" "LOT-C711-9 CWS J&J A" "51 55"
Filter bottom view
Filter side view
Bag for "US ARMY SERVICE GAS MASK" "MASK, GAS RECONDITIONED FOR TRAINING"
Stamp inside carrier "MIN-P-100-1 L.R.G.C C-891"
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