I just purchased Walther PP 754,355 (1930) with features indicative of early PP's including a 2-piece covered firing pin, flat heavy hammer without a groove, fat safety lever, short slide/"long" barrel, and X (cruciform)-grips. Perfectly electro-penciled into the right front flat surface of the slide is: P.V.E.2 [6mm high]. The "2" is slightly less deep and very slightly uneven with the bottom line of the letters suggesting this numbering was done separately from the P.V.E. Don Maus in History Writ in Steel identifies P.V. markings as unknown police markings including one found on an earlier Dreyse 1907 with a P.V.E.No.84. He suggests the P.V. stands for Polizei Verwaltung which seems a reasonable assumption and the "E" for an administrative district. The "2" is certainly an inventory number. Although Erfurt in Saxony (Thuringia) is a possible explanation for the "E" so is Elberfeld, a town with a Police Headquarters of some size that was incorporated with Barmen, and finally Wuppertal in 1930. In fact, P.V.E. is identified in Michael Kellogg's book on The Russian Roots of Nazism as "Polizei Verwaltung Elberfeld", and Elberfeld in 1929 had stationed there senior police officers who later ascended to General rank in the Army. We tend to forget that the first 3 years of PP production occurred in Weimar Germany. Thus the Imperial/Weimar-like police marking style, while highly unusual on a PP during the Reich, is not inconsistent with the period. Maus in fact identifies another Walther PP in the same serial range (752,358) with a similar "P.V.Gö.Nr.63" on the front gripstrap. Any further information on these markings appreciated.