U.S. Army M25A1 Chemical-Biological Tank Mask
The U.S. Army M25A1 Chemical-Biological Tank Mask was an upgrade of the earlier U.S. Army M14 Tank Mask and U.S. Army ABC-M24 Aircraft Mask. Like the M14, the M25 series used a female microphone attachment. This example was made by Acushnet in 1986.
Similar masks in my collection: U.S. Army ABC-M24
Size stamp on forehead "US M"
Manufacturer and date stamps on cheek "86 ACU 2E 11" "M6 C2"
Manufacturer and date stamp on exhale valve cover "86 GENTEX ACU 2E-11" "M1-C1"
Manufacturer and date stamp on nose cup "86 ACU 2E11"
Size stamp and microphone stamps inside nose cup "M" "MICROPHONE DYNAMIC M-116/U" "ROANWELL CORP. BLA900-83-C 9667" "FRONT" "U.S."
Filter model and lot stamps top view "US M10A1" "LOT NO NSD87C001-014B" "FILTER INSERT INSTALLED"
Filter bottom view
Filter and sling side view "SLING, CARRYING CANISTER, M9"
Microphone cable plug "ROANWELL" "M641/8-1"
Microphone cable plug "ROANWELL" "M641/8-1"