Original U.S. 1950s Navy High Altitude Full Pressure MK IV MOD. 2 Flight Helmet & Mark IV Mod 3 Pressure Suit with Helmet Transit Case - NASA Mercury Program British Documents & Books 37 1/4” overall

37 1/4” overall

and under this are the size markings as well as an LBA 3 43 stamp

anticipating a catchy nickname for women Marines much like the WACS

There is also what looks to be a picture taken inside the turret of a tank

Original U.S. 1950s Navy High Altitude Full Pressure MK IV MOD. 2 Flight Helmet & Mark IV Mod 3 Pressure Suit with Helmet Transit Case - NASA Mercury Program British Documents & Books 37 1/4” overallOriginal 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. A nearly identical example of this Mark IV Pressure Suit can be found in the Smithsonian Air & Space Museum at this link. This is an excellent set, the first complete set we have ever offered, consisting of a very rare U. S. Navy Mk IV, Mod 2, Type 1 Helmet and an even more rare Mark IV, Mod