Quarantine Coloring Book
The German Auer Vollmaske 744 was made of rubberized cloth with round glass eyepieces. This example was made by Auer in the 1950's.
Vollmaske = "Full Face Mask"
Similar masks in my collection: German Vollmaske 747, German Degea Ledermaske, Swedish Typ 9
Auer 2730 filter side view