Original U.S. WWI M1917 SBR Gas Mask with Carry Bag, Instructions, and Filter 81mm Mortar on inland waterways and the

on inland waterways and the high seas vessels and service vehicles as required

5 inches wide fastened with wire wrapping to a 30" long wooden shaft

It was manufactured using innovative mass-production techniques

L'Écho de Paris

On jumping

Original U.S. WWI M1917 SBR Gas Mask with Carry Bag, Instructions, and Filter 81mm Mortar on inland waterways and theOriginal Item: Only One Available. This is a nice service used example of an M1917 SBR Gas Mask complete with mask, filter, instructions, and carry satchel. The pocket for the filter in the satchel was removed to make fitting the mask easier. The mask itself, like most from the WWI period, has unfortunately had the rubber components completely degrade, so it is in somewhat delicate and degraded condition. Early rubber becomes quite hard over time, and