I am a novice collector who just picks up bits and bobs when I see them but there are a few pieces with which I need a few questions answering.
First is a 1954 (unsure whether this is the correct date) US helmet.
The mark that I think is a date stamp (?) showing crossed swords with 54 opposite
Unsure what this one is
stamp reading 33
Next a typical British brodie helmet (correct me if I'm wrong)
Unsure about the marking that reads KBI (possible maker mark) and a date of 1931. It also reads above J.S.S in similar writing and a 31 underlined and scrached into metal