MSA All-Vision Gas Mask

The MSA All-Vision Gas Mask was made for a variety of applications, including law enforcement and industrial use.  This version featured a flutter valve and short hose, equipped with an MSA Canister for Acid Gases.  This example was made by Mine Safety Appliances in 1943.

Rubber stamp
Rubber stamp

Date stamp on flutter valve "10-43"

Head harness
Head harness

Leather head harness

Filter
Filter

Filter sticker top view "Caution Remove seal on bottom of canister before using"

Filter
Filter

Filter bottom view

Filter
Filter

Filter label front view "M-S-A CANISTER FOR ACIDE GASES TYPE GMB"

Filter
Filter

Filter stamp back view "GMB"