Manufactured in 1907. The slide has the two-line, two-block patent dates/Hartford address markings with a circled Rampant Colt behind the serrations on the left side and the two-line caliber marking ahead of the ejection port on the right side. Trigger guard has the factory triangle proof and the letter "T" on the left side. Checkered grips with diamond pattern around the screws and an unmarked blue magazine. Colt manufactured only 6,300 Model 1905 pistols from 1905 to 1911.