Here I have a Mk4 British Military Police Turtle Helmet. The helmet has the liner system which makes this a MK5 but the shell is a Mk4 as they never made any after 1953. I believe this shell to be a 1945 Mk4, the markings don’t show a the year only BMB and a few steel numbers. The rivet holding the liner bolt is flat headed that you see on the 1945 Mk4 versus the hollow rivet you see on the 1950s versions. Also the paint inside the helmet looks like the brown OD type you see used during WW2. The helmets liner system has the year 1979 so this old girl has seen well over 30 plus years of service with the British army. Would love your opinion on this one guys.
Thanks for looking guys cool militaria

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