Leather Brodie style helmet
I have just bought a Brodie style battle bowler with a sewn leather outer shell. Please see three photos attached. I have seen lots of helmets but never one like this before. I assume it was made for use where non-magnetic equipment was necessary, such as for mine clearance, bomb disposal, compass work etc. The top screw is brass as are the rivets attaching the chin strap. The two small pieces of sheet metal attaching the strap are however magnetic steel. The strap is elasticated with what appears to be two non-magnetic coil springs each side within the fabric. The helmet has not had a lot of use. Externally it is clean, internally it has the dirt of the ages even after a wipe with a damp cloth.
Alternatively, as the liner of this helmet is very small, perhaps it was for cadet use?
Any information as to use or manufacturer would be much appreciated. I don't see any markings other than the wearers initials H.W. in black ink on the strap.