German Degea Vollmaske 747

The German Degea D.R.P. Vollmaske 747 was made of rubberized cloth with round glass eyepieces.  This example was made by Degea in the 1930's.

Vollmaske  = "Full Face Mask"

Similar masks in my collection:  German Vollmaske 744, German Degea Ledermaske, Swedish Typ 9