Need help id'ing gas mask

[M1911a1g17]

Hello all. First post on here. I need help identifying this gas mask i picked up today. Has some markings. G-141-2-79 on band. Inside has a square with a 2. Also a square with a 26. And s-23/79. On the front breather it says CM4. If anyone has any info, it would be greatly appreciated! Thank you!

 

[Brewer]

"The Czechoslovakian CM-4 was designed primarily for civilian use. Due to its sturdy construction and ease of use, the CM-4 platform found use outside of its original intended role of civilian defence - it was also used by police, civil workers and in industry. Many collectors often consider the CM-4 to be one of the most capable and well-designed masks from the so-called Combloc. Two other iterations of the CM-4 exist: CM-4K and CM-4M, these particular models are explained and explored further down the article."

CM-4

The Czechoslovakian CM-4 was designed primarily for civilian use. Due to its sturdy construction and ease of use, the CM-4 platform found use outside of its original intended role of civilian defence - it was also used by police, civil workers and in industry. Many collectors often consider the...

gasmaskandrespirator.fandom.com

 

[M1911a1g17]

Wow thank you! I really appreciate it! Thank you.

 

[greencobra]

if you had a computer you could have gotten the info yourself.

 

[M1911a1g17]

Ok