Original U.S. Vietnam War USAF Flight Helmet Oxygen Mask by Sierra Engineering Co. Martini-Henry Accessories 5SERIAL NO

5SERIAL NO

The word agate is "achat" in German

Perfect for display or for a home project

It was very common for a soldier to specialize in specific items

The receiver area still has some of the original case hardening on the internals

Original U.S. Vietnam War USAF Flight Helmet Oxygen Mask by Sierra Engineering Co. Martini-Henry Accessories 5SERIAL NOOriginal Item. Only One Available. Heres a great piece often missing from Vietnam War flight helmets, the oxygen mask. This mask is in fantastic unissued condition and would pair beautifully with a helmet. The mask retains its original tube without any serious damage. There is a makers tag on the end piece reading: 92114 ASSY 232 94A SIERRA ENG. CO. The rubber mouthpiece is also marked: OXYGEN, MBU 5 P SIZE REGULAR NARROW FSN 1660 794 0855 This is a