Tuck's Flying Helmet

Andy, during 1940, Bob Tuck wore either a station taylor modified B-type helmet or it was a private purchase helmet.
I reckon it was a station modded helmet. It looks like his helmet had the receiver retainers just sewn directly to a normal B-helmet, minus the zip housings. Possibly he didn't use ear doughnuts either.
Tuck also didn't use the standard fitting for his D-type oxygen mask. He used what looks like a MKIII goggle strap sewn to the mask.
Cheers
Neil