The Model 1905 pistol was a direct predecessor to the Model 1911 with a total production of approximately 6,100 from 1905 to 1911. This pistol was manufactured in 1907. The right side of the slide is marked "AUTOMATIC COLT/CALIBRE 45 RIMLESS SMOKELESS" in front of the ejection port. The left side of the slide is marked in two blocks: "PATENTED/APR. 20. 1897. SEPT. 9. 1902. DEC. 19. 1905" and "COLT'S PATENT FIRE ARMS MFG. CO./HARTFORD CONN. U.S.A." (double stamped) with the circled Rampant Colt behind the serrations. The serial number is located on the left side of the frame above the trigger guard bow. The upper left trigger guard bow bears the Colt "VP" triangle proof and the lower is marked with a "6". Early rounded hammer found on this model with half-cock notch and casehardened finish. The remainder of the gun is finished in the a high-polish blue, except for the trigger, extractor, grip screws and magazine release, which are niter blue. The grips are checkered walnut with the diamond pattern around the screws and the correct unmarked magazine is blue with high polished blue on the baseplate.

Excellent, retains 95% plus bright original high polish blue finish, 97% original case colors on the hammer, and 75% plus original nitre blue on the small parts with the balance thinned to a smooth grey patina, primarily on the grip straps, and crisp markings (some factory double stamped, see above). The grips are also excellent with a few scattered minor dings and scratches, and crisp checkering overall. Mechanically excellent.