gasmask? can identification

[k-dog]

Hello, may I kindly ask for help with identification of following container? I guess it's gasmask can, but not sure with who and when was is used.
Thanks in advance!

[Gran Sasso]

If I recall correctly, its tschechoslowakian Luftschutz.

[Uncle Goose]

Indeed Czechoslovakian, time period is from just before WW2 till the late 1950's, usually a pre-war version has the FM3b gas mask sitting in there while the post-war has the CO-1 mask in it. Producers of the gas masks are either Fatra, Kudrnac or Chema. The pre-war canisters of Fatra have the company logo embossed inside the lid of the box.

This is the CO1 gas mask that sits in a post war canister. (photograph from my personal collection)

[k-dog]

Thank you very much for your help and expanding my knowledge