Erika Pfannl pistol, six-shot, 4.25 mm caliber Ebonite grip panels with a checkered pattern and a number. Frame stamped and marked “NP.” Barrel stamped “110.21.” Barrel length: 5.8 cm Overall length: 12.2 cm B.E. Blued finish. Pistol invented in 1912 by François Pfannl, a gunsmith in Krems (Austria), and manufactured until 1926. Classified as Category D.