Hello all! I work at an antique mall in North Carolina, where we get a huge variety of stuff in, including this gasmask. It is in *really* nice condition. I searched around a bit, but did not find the same thing already posted. Any help with ID, history, approximate pricing, etc., would be awesome.

The bottom is stamped with a hexagonal shape, and 1937.
Inside where the extra filter (???) goes has a stamped 34.
The actual filter, also stamped 1937, has a really nicely intact label. Don’t know what it says, but it is rather well preserved.
Tube has some minor rust spots, and the canvas strap is in good condition.
The mask itself has some flaking of the rubber lining, but the elastic is still stretchy, and in whole, really nice.

Thank you for your help!
Indy

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