French Vernon A.N.P. 39

The French Vernon A.N.P. 39 was a licensed copy of the Czech FM-3d. They were used for civil defense. This example has celluloid lenses and was made by Vernon in 1940.
A.N.P. = Appareil Normal de Protection = "Regular Protection Device"
Similar masks in my collection: Czech FM-1a, Czech FM-3d, Dutch FM-3d, Bulgarian Type 3