Imperial German Cartridge Casings Markings There are no-doubt more markings to be found on Imperial German cartridge casings. This list is of the markings that I am aware of.

Marking Manufacturer AEG Algemeine Elektricität Gesellschaft Berlin AWDr Artillerie Werkstatt Dresden AWS Artillerie Werkstatt Spandau DWM Deutsche Waffen und Munitionsfabrik FN Fritz Neumeyer GG Gelsenkirchner Gusstahl Werke GGW Gelsenkirchner Gusstahl Werke GF Sp Geschoss Fabrik Spandau HL Haniel Luege Düsseldorf KARLSRUHE PATRONENFABRIK Patronenfabrik Karlsruhe KP Krupp Essen POLTE MAGDEBURG Polte Magdeburg PFK Patronenfabrik Fredericton Kanada RhMF Rheinische Munitionsfabrik Düsseldorf SH Siemens-Halske

Marking Meaning 67% Percentage of copper Ex. Exzerzier (drill) Hb27 Control/inspection mark of Patronenfabrik Friedrich Neumeyer Karth Kartusche (cartridge casing) Sp252 Control/inspection mark for Patronenfabrik Polte Magdeburg Sp255 Control/inspection mark for Patronenfabrik Karlsruhe Sp289 Control/inspection mark for Patronenfabrik Polte Magdeburg Sp406 Control/inspection mark for Patronenfabrik Polte Magdeburg St Stark (strong) means that the casing was strengthened. Casings until 1905 had thinner walls V Verpackungsmunition: a weighted drill casing Vp. Verpackungsmunition: a weighted drill casing Flaming Bombs Found on all cartridge casings made by Patronenfabrik Karlsruhe for Army and Navy Crown Inspection marks prior to introduction of the Sp inspection stamps. Crowned M Kaiserliche Marine (Imperial Navy) arsenal's acceptance stamp