Original U.S. WWII IS Navy DESCO Jack Browne Full Face First Model Diving Mask With Breather Bag Martini-Henry Parts thus preventing the next cartridge

thus preventing the next cartridge from entering the carrier and jamming the action: an important feature

and is mostly worn away

These larger medical canteens

This example is in good service used condition

Original U.S. WWII IS Navy DESCO Jack Browne Full Face First Model Diving Mask With Breather Bag Martini-Henry Parts thus preventing the next cartridgeOriginal Items: Only One Set Available. This is the mask that started it all. The Navy needed a lightweight utility mask for jobs where heavy gear wasn't necessary or practical. DESCO developed the Browne Mask to meet this need. The unique feature of the USN Mask was 3 way valve attached to the breather bag. The bag was intended to reduce air demand and ease breathing. It didn't function as well as hoped and eventually fell out of use. The "Jack