“Introduced in 1910, the Model 3 was Walther’s first 7.65mm pocket pistol, and one of the first to be accepted by the European arms market. Though well made, the introduction of the Model 4 pistol rendered the Model 3 obsolete shortly after introduction, limiting overall production. Blade front and slide groove rear sights, “crown/N” proofs on the slide and barrel, the one-line caliber and patent markings on the left side of the slide, deeply cut slide serrations, external extractor, and checkered “CW” monogram grips.”