Manufactured c. 1921-1928 and features a very desirable trapper/baby carbine length 16 1/4 inch barrel (legal length, so no need for ATF exemption!). Winchester called these "Special Short Carbines" back then. These were never a cataloged option and were discontinued in 1933 leaving only a limited number available. While they were in production, they were reportedly popular with law enforcement agencies like Winchester's standard length carbines in the early 20th century, and some are known to have been sent to South America making surviving examples rare and valuable collectible firearms. It features a modified pinned blade front sight, an adjustable folding rear carbine sight, saddle ring on the left, and smooth carbine stock and forearm. The left side of the barrel has the model, trademark, and caliber markings. Winchester factory oval proof is stamped on the frame and barrel at the breech. The upper tang has the three-line model/trademark marking.