I am taking the liberty of posting Don's response posted on Still's forum. Hope he doesn't mind.
Ron
Ron's pistol has been a significant data point in my research on Berlin Schupo unit marks that will be published in a two-part article beginning in the August Auto Mag. My ID of the marks based on that research is:
S.B.W.I.1.35 - Weapon # 35 of Hundertschaft/Berietschaft 1 of the Charlottenburg (W.I.) Abteilung/Inspektion in Berlin. The reason for the dual names is that the names of these commands were changed in 1922-23 at the insistence of the Allies so they would not sound so "military." The first name is that used in the April 1922 marking order and the second is the "new" name in use during most of the Weimar era.
S.B.7035. - Sometime between 1922 and 1932, the marking format for all Prussian Schupo units was simplified, especially for Berlin. In Berlin, each Inspektion was apparently allotted a block of weapon numbers within the overall range from 1 to at least 17000 and they assigned these new numbers in the same order as the old weapon numbers. Because of this correlation, I was able to determine from Ron's info that the block of new numbers assigned to Bereitschaft 1 in the Charlottenburg Inspektion probably began with 7001.
I'm on vacation and won't be monitoring the forums regularly for a while.
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Regards,
Don
donmaus1@aol.com