John, I forgot to also ask if your Prussian Schupo/FJK is a private purchase piece (Extra Waffe)? I couldn't get a sense of length from the photo. Does it have any acceptance marks on the spine or scabbard fittings? I would suppose not if it is a private purchase piece.
"This hobby is a continuing education" Looking for Walther Model 8 #727649 and Walther PP #975557