US Navy MK 5 Diaphragm gasmask

Описание: United States Navy Mark 5 or V Diaphragm mask.
This was the idea of a lightweight mask for the US Navy developed in 1957, with a panoramic lens and a voice diaphragm, the filters are held on via rubber flaps, as this model is damaged due to age and rubber degradation you can see how the filters attached.

A fun bit of trivia is this is the gas mask on the cover of Metro 2033 when it was released as a video game before the redux releases etc.