This is an original 1942 WW2 US Army M1A2 Diaphragm Gas Mask in Kidney Bag with a flexible design. It is a collectible militaria item from the United States, specifically from the WW II (1939-45) period. This gas mask was designed to protect soldiers from chemical attacks during the war and is an original piece, not a reproduction. The mask is in good condition and comes with its original kidney bag, which is also in good shape. This item is perfect for collectors of militaria, especially those interested in items from the WW II period.