US M Gas Mask Respirator w/ Carry Bag, Militaria Training Use Marked US M

vintage US Military M17 Gas Mask. Mask Identification & DescriptionModel: M17 (standard field protective mask) Manufacturer: MSA (Mine Safety Appliances) Date: The "69" indicates it was manufactured in 1969, a standard year for masks issued during the Vietnam War. Markings:69 MSA 2E8: A manufacturer lot and date code. M6 C1: refers to specific component codes, like the exhale valve or mold identifier. Filter System: unique internal cheek filters Communication: mechanical speaking diaphragm at the front to facilitate voice communication. This mask was the standard-issue protective mask for the U.S. Army from approximately 1959 until the early 1990s. It is widely considered a staple of Vietnam-era militaria.