VOPO mystery

[jeffs]

Dear Experts:

Could you please help me with this barrel mystery? I have a 1912 DWM luger that was subsequently drafted into Weimar era police service (the telltale signs of formerly having a Schiwy safety), captured by the Russians (the ubiquitous “black dip”), and then refurbished for/by the VOPO’s (new byf toggle train and sear bar of unknown origin, all renumbered to match the 1912 original number, a VOPO shield, and two VOPO mags numbered to the pistol). The mystery is the barrel, which bears a superimposed TP and an eagle, but was NOT dipped in black. My understanding is that the TP indicates after the mid-1930’s, when the abbreviation/name for the Technische Polizei und Verkehrs Schule was changed to just Technische Polizei Schule. How would the VOPO’s have gotten their hands on a new 1930’s barrel? Didn’t they use their own new barrels, marked Crown/N ? Who manufactured the barrel? A picture of the marking on the barrel is attached.


Thanks,
Jeff