A moulded alluminium front piece holds the filter or the breathing hose and an annular exhale valve.
The head harness is made of six points rubber straps
| UNIDENTIFIED 4 WW II Commercial Market mask | |
|
Made of soft moulded rubber facepiece holding Triplex
glass eyepieces.
A moulded alluminium front piece holds the filter or the breathing hose and an annular exhale valve. The head harness is made of six points rubber straps |
| UNIDENTIFIED 4 WW II Commercial Market mask | |
 |
Made
of soft moulded rubber facepiece holding Triplex glass eyepieces
A moulded alluminium front piece holds the filter or the breathing hose and an annular exhale valve The head harness is made of six points rubber straps |