German glasses 1938 ???

[marcelmignon]

Good morning. Could you give me your opinion. I do not know what is it?
Dated 1938 and German. Thank you for your help.

http://images.empreintesduweb.com/1393140175.jpg.html

http://images.empreintesduweb.com/1393140205.jpg.html

http://images.empreintesduweb.com/1393140228.jpg.html

http://images.empreintesduweb.com/1393140259.jpg.html

http://images.empreintesduweb.com/1393140284.jpg.html

[MP44_tom]

Hello

They are glasses which belong to the german horse gas mask !

Tom
www.mp44.nl

[MP44_tom]

Here a picture of them in use



Tom
www.mp44.nl