And another mystery helmet that somehow ended up in my collection?

[BrianD]

No clue what it is, or even where I got it? Smooth exterior finish, larger than a British Brody helmet......can someone help me ID this one too please?

[BrianD]

Just a couple more.....no visible marking on the inside of the helmet at all.

[earlymb]

Could be a civilian miner's helmet?

[Wake1941]

I believe these were also sold to US civil defense forces