U.S. WWII Navy H-4 type Flight Helmet French 403-M3 Bone Dome Hand Select:No In 1934 tests began on

In 1934 tests began on an improved Stahlhelm

Simpson were a press steel manufacturing plant in the hills above Adelaide capital city of the state of South Australia

The back of the holster has metal hook attachments for use with a P-37 web belt

Now seldom encountered on the market

so this is a scarce item

U.S. WWII Navy H-4 type Flight Helmet French 403-M3 Bone Dome Hand Select:No In 1934 tests began onOriginal Item: These are not U. S. issue, however, they are nearly identical to late 1940 early 1950s production U. S. Navy & Marine H 4 flight helmets by Gentex. These helmets are 1950 60s era French made Type 403M3 flight helmets also by Gentex their subsidiary; SOCAPEX. The 403 M3 was designed directly from the American H 4 flight helmet (shared technology agreement) and is often seen mounted with a boom microphone, which is missing from our