Manufactured in limited numbers during the First World War, the Model 6 was Walther's first move into the full-size military pistol market. In overall design the Model 6 shows a very strong mechanical resemblance to Walther's vest pocket guns, while also meriting comparison to the Fabrique Nationale product of the time as well as later developments by Star with full-power straight blowback semi-automatic military pistols. Blade front and notch rear sights, with the left side of the slide marked "Selbstlade-Pistole Cal.9m/m. Walther's-Patent." over the Walther banner, and the early one-line address "Carl Walther, Waffenfabrik, Zella St. Bl." on the right. Zella-St. Blasii was one of the communities merged together to form Zella-Mehlis in 1919, which would remain Walther's headquarters until the post-WWII Soviet occupation. Equipped with an external extractor and a set of checkered grips with "CW" monograms.

Excellent, with 95% of the original blue finish, showing a few areas of brown patina, bright wear along the edges and under the safety lever, and minor handling marks. The extractor retains 60% of its bright original niter blue finish, with a gray patina on the remainder. the grips are very fine, with a slight amount of warping and some minor chips and age cracks. Mechanically excellent.