Swiss SM 64
The Swiss Bata SM 64 was a helmet type mask made of black rubber. It featured two round glass eyepieces, an elongated snout, and a cheek-mounted exhale valve. It was for use by rescue workers, and sometimes issued in pairs with a "Y" hose leading to either a single filter, or Pressluftatmer PA-2000 unit. The first example was made by Bata in 1964, and the second examples were made by Bata in 1965.
Maske = "Mask"
Pressluftatmer = "Compressed Air Breathing Apparatus"
Similar masks in my collection: German VM 37, Latvian VEF 39, Dutch Veritex, Swiss B-Maske, Finnish M39
Stamps on metal eye rings "U-6551 3"
Stamp on exhale valve cover "B-1 L"
Rubber date stamp and Swiss cross stamps in white ink "02-64"
Manufacturer stamp on metal clamp "HORGEN"
Filter top view "LUWA"
Filter side view
Sealed filter container top view "Swiss filter ABC Schutzfilter 74"
Sealed filter container side view
Stamps on exhale valve cover and cheek "B-1 B" "10-65"
Date stamp under chin "02 64"
Manufacturer stamp on filter connector "INCA 6115 2"
Date stamp on hose "L 07-66"
Stamp on hose clamp "26-30"
Manufacturer and date stamps on filter top view "LUWA" "19--72 Z"
Bag for "Beatmungsausrustung zu PA-2000" "Eqpt de respiration pour PA-2000"
Metal box with instructions, cloth, and anti-fogging liquid, closed
Metal box with instructions, cloth, and anti-fogging liquid, open