Pre-war manufactured M/38 gas mask bag.
M/38 gas mask was originally intended to be used by rear echelon troops, but ended up being the second most common gas mask type among frontline troops. It was a lot more portable than the most common M/30 gas mask.
This bag was manufactured by Friitalan Nahkatehdas. There is a manufacturer stamp and a gas mask number stamp under the main flap.
The main closing strap button hole is torn and there is some wear on one of the side compartments. Everything is still in good and usable condition.