Original 1961 U.S. Navy MK IV MOD 1 High Altitude Full Pressure Flight Helmet with Original Carrying Case- NASA Mercury Program Original Machine Gun Part Sets Unfortunately the striker on the

Unfortunately the striker on the end of the type bar did have the runes removed

The pioneer part of the platoon name meant that we were trained to do small engineer work that could be handled without heavier equipment

This is an model 1926 helmet that definitely looks to have seen a long service history

The top of the phone is marked: TELEPHONE SET "F" MK

WWI AEF US Army/USMC M1909 Leather Belt Holster for the Colt or S&W M1917

Original 1961 U.S. Navy MK IV MOD 1 High Altitude Full Pressure Flight Helmet with Original Carrying Case- NASA Mercury Program Original Machine Gun Part Sets Unfortunately the striker on theOriginal Item: Only One Available. A nearly identical example of this MKIV High Altitude helmet can be found in the Smithsonian Air & Space Museum at this link. This is an excellent example of a very rare U. S. Navy Mk IV, Mod 1, Type 1 Helmet. Undoubtedly one of the absolute hardest examples of U. S. Military Flight Headgear to locate, with very few having been made, and even less surviving to today. These helmets seldom come to market, with most