French A.R.S. - G.E.P.
The French Masque A.R.S. - G.E.P. used a cloth facepiece similar to the A.N.P. T-31 and TC-38. It was used for civil defense. This example was made in 1939.
A.R.S. = l'Appareil Respiratoire Spécial = Special Respirator Device"
G.E.P. = Gaz Et Protection = "Gas And Protection"
Size stamp on cheek "T.O."
Manufacturer and model stamp inside mask "A.R.S. - GEP"
Lot and date stamp inside mask "1820 6122-8 10-1939"