Swiss SM 67

The Swiss Huber+Suhner SM 67 was made of black rubber, with two round glass eyepieces, and an exhale valve below the filter inlet.  This example was made by Huber+Suhner in 1973.

 

Similar masks in my collection:  Swiss SM74

Rubber stamps
Rubber stamps

Stamps on cheek "0" "01-73 L" "1"

Stamp
Stamp

Stamp on metal eye ring "U-6551-IIB 2"

Filter
Filter

Filter top view "TECHNIC AIR"

Filter
Filter

Filter bottom view

Filter
Filter

Filter side view

Carrier
Carrier

Bag front view