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en.wikipedia.org/wiki/Luger_pistol

The Pistole Parabellum 1908—or Parabellum-Pistole (Pistol Parabellum)—is a toggle-locked .... The Bolivian Army adopted the DWM Luger in 9×19mm Parabellum as the main officer's sidearm in 1908; a few hundred were ... The serial number 2 Luger .45 passed the tests, and survived to be traded among collectors.

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For details on your specific serial number you may contact our Service ... Note: The Letter of Authenticity lists the serial number, ship date, model and caliber.