Colt Woodsman Prewar 22lr 10 round magazine blued Triple K
Introduced as “automatic pistol target model” in 1915. The “Woodsman” designation was added in 1927. The original models to serial #83790 are not considered safe with high velocity ammunition. It was available in Model S, Sport Model, and later as S-MT, a flat barreled target pistol with adjustable sights and oversized grips, generally called the 1938 model. Manufacturing was almost stopped during WW II, the design was discontinued in 1945.
The image you are seeing is of the gun, not the magazine you are purchasing
Please see separate listing for Postwar version of this magazine 394M