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 The top of the phone

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

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

Early 20th century Dutch KNIL caps such as these

The kit itself appears to be complete though there may be a few items missing

including at least 7

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 The top of the phoneOriginal 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