German WW2 Gasmask and Can

This is an ORIGINAL WW2 Gasmask and canister
Closing clip in canister is marked: frn 44
The canister has the D on the bottom for "Dicht" (Watertight)
Clip strap is good.
Belt hook strap present
Mask is marked 1938
Filter is marked FE37 and ink stamp 1940.
Waffenamt on filter is very nice and marked WaA 320 with the eagle and swastika
Mask has faint WaA stamp on inside
Solid lenses marked 1938 and inner lenses are marked 1936
Mask size 3
Canister has 1 set of "klarscheiben" in lid (Spare inner lenses)