US WW2 Experimental T19E1 Tank Crew Helmet Liner

In a nice used condition a US WW2 Experimental T19E1 Tank Crew Helmet Liner.A very nice 'high pressure' helmet liner, designed to be used with the T19E1 tankers helmet, which was never actually put into production.These liners are quite rare, and this one is an exceptional example. Many were used for training post war, which subjected the liners to quite a bit of wear and tear. There were no replacement parts, so they could not be repaired.This example is in very good condition, and has sadly the original leather chin straps missing.The interior is further fully intact and shows light wear. The adjustment system is somewhat unique, using sliders that go over a metal fitting with a tab that locks into the leather of the liner.The shell for these helmets was a modified M1 design, with the lower front removed, so that goggles and earphones could be used.A very hard to find exxperimental tank crew liner!