Fire/Police M34 DD square dip and I believe the stamp "P.D." is for maker Paul Diener. This helmet is outside of my focus (Heer/Luftwaffe) but I bought it back in 1989 when I was pretty much still a kid and easily distracted by anything TR that looked "cool". The condition of the helmet caught my eye. All of the leather in excellent shape and still nice and supple to this day. It does have a fairly sloppy national decal but the Polizei decal is pretty strong. I don’t believe it was ever issued/used although the comb shows a few dings probably from careless handling.

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