Model 62 Winchester
I have one too, very much like the one that you just bought. My mother purchased it for my father in the late 1930's at the Sears store which was then located at 63 rd and Market Street, in West Philadelphia. She paid $25.00 for it at the time. Thats the gun that I first learned to shoot with. It still works great. My grandkids use it now. Mine also has the rounded forarm. A lot of the 22 short models were used in the shooting galeries in the NJ boardwalks. You used to get 10 shots for 25 cents.