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Italian Maschera Antigas I.A.C. M.31
The Italian Maschera Antigas I.A.C. M.31 was made of smooth dark brown rubber. This example features a speech diaphragm/exhale valve incorporated into the hose, and was made by Industria Articoli Caoutchouc around 1933.
Maschera Antigas = "Gas Mask"
Industria Articoli Caoutchouc = "Rubber Articles Industry"
Similar masks in my collection: Belgian M1931, Belgian M1934, Italian S.A.B. M33, Spanish M33
Rubber stamp
Manufacturer and model stamp on cheek "M.33 II (I.A.C. logo)"
Rubber stamp
Stamp on cheek "226651"
Stamps
Stamps on ends of hose
Filter
Filter stamps top view
Filter
Filter date stamp bottom view "7-1936"
Filter
Filter stamp side view "T. 35"
Carrier
Bag front view "14"
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