Only around 15,000 of these revolvers were manufactured in 1847-1850 compared to over 325,000 of the Model 1849 Pockets. This one was manufactured in 1850 and has the combination of the stagecoach cylinder scene, oval cylinder stops, and squareback trigger guard usually found in the 10400-12100, but this revolver is obviously even later than that and falls in the range with transitional 1848 Baby Dragoon/1849 Pocket revolvers with the attached loading lever and stagecoach cylinder with the rectangle stops of the '49 Pocket and the square back trigger guard of the Baby Dragoon. It also has a German silver front sight post, "-ADDRESS SAML COLT/NEW YORK CITY-" on top of the barrel, small "COLTS/PATENT" marking on the left side of the frame, a "K" on the bottom of the frame, "T" on the back of the barrel lug, and matching serial numbers on the barrel, wedge, cylinder pin, cylinder, frame, grip straps, and handwritten in pencil in the back strap mortise of the grip.