World of Luger Proof Marks by Sam Costanzo

World of Luger Proof Marks by Sam Costanzo number 382 of 500 copies signed by the author. It is a comprehensive reference book detailing variations of, proof marks, inspectors stamps, and arsenal logos on P08 Luger pistols. It acts as a guide to identifying military, commercial and international proofs, covering manufacturer stamps like DWM and Erfurt.