Need help! American or British Lid?
I hate using cell phone pics, but it’s all I have. A friend spotted this at an upcoming estate auction. I’m not up on my "dough boy" style helmets, so is this American or British? I have not seen that liner before. I’d like to go for it, but what’s one like this go for on the market? Any help would be greatly appreciated! Thank you, as always! 
