Gas Mask King
Norwegian LF-62
The Norwegian LF-62 was made of gray PVC with a large clear panoramic lens. This example was made by Helly Hansen around 1962.
Similar masks in my collection: Norwegian IMA
Rubber stamp
Model stamp on forehead "LF-62"
Rubber stamps
Manufacturer, size, and date stamps on cheek "2" "HELLY-HANSEN" "MOSS" "PAT. ANM."
Stamp
Stamp on exhale valve cover "M-25320"