To answer a question received by e-mail which may be of general interest.
There were only ever three sets of Luger machinery and tooling. They were at DWM in Berlin-Charlottenberg and later Berlin-Wittenau; at the German (Prussian) State Rifle Factory at Erfurt (then in Saxony, now in the reformed state of Thuringia); and at the Swiss arsenal at Bern. There are reports of Lugers marked Spandau and Amberg. The latter are almost certainly fake; the former most likely also fall into that category but may be reworks. Vickers in England never made Luger pistols; they finished (or refinished) German parts in the post-WWI period to fill a Netherlands contract when Germany was banned from arms production.
After WWI, the Erfurt machinery and tooling went to to Simpson & Co. in Suhl; the Simpsons were Jews and the Nazis took over the plant. Whether by sale or simple takeover, the Luger machinery was moved to the Krieghof factory where it was used to make pistols after 1935, primarily for the Luftwaffe. At some point in WWII, the Luger machinery, as such, vanished.
After several corporate name changes, in 1930 DWM ceased to exist and the Luger machinery and tooling, along with some technical personnel, were moved to the Mauser factory at Oberndorf am Neckar. That factory ceased Luger production in 1942 and the machinery was either retooled for P.38 production or scrapped.
About 1960, Sam Cummings of Interarmco (later Interarms) felt the time was ripe for a new Luger. He consulted with Mauser, which then (1967) purchased the machinery and tooling from Bern. The first production was of a clone of the Swiss pistol, which had been modified from the original German design. After indications that the German style would be a better seller, Mauser modified the tooling to produce that version and production began in 1971. The pistol was a moderately good seller, but never met sales projections and all production of what was then called the "Mauser-Parabellum"* ceased a few years later.
*In the 1920's Stoeger, U.S. importer of the German-made Parabellum pistol, trademarked the name "Luger" in the United States. That not only prevents any other maker from using that name in the U.S. but also allowed Stoeger to legitimately call an inexpensive .22 pistol the "Luger" even though it bears only superficial resemblance to the original German pistol.
Jim