Dutch FM-3d

The Dutch FM-3d was the exported version of the Czech Fatra FM-3d. It was used for civil defense. The filter was made by G.L. Loos & Company in Amsterdam in 1939.

Similar masks in my collection: Czech FM-1a, Czech FM-3d, French Vernon, Bulgarian Type 3

Date stamp on filter connector
"9
39"

Stamps inside mask
"2"
"64"
"1939"

Stamp inside mask
"(?)"

Stamps inside mask
"1939"

Stamp inside mask
"(?)"

Stamps inside mask
"DW"
"182"
"ZAKONEM CHRANENO"

Exhale valve

Stamp inside exhale valve cover
"245
1"

Filter stamp top view
"NF"