Approx. 7 years ago I purchased an antique single-shot rifle at auction. It is an early 1900's Stevens "Favorite" chambered for .25 rimfire ammo. The rifle is in good condition except for the butt plate, which is missing a small section. The bore looks real good and it has a flip-up sight. It is a lever action also. I was able to find a full box of .25 ammo at a gun show, but I have never fired the rifle. Does anyone know more about these rifles? When did the .25 cartridge stop being produced? What were the ballistics like? Is this rifle worth keeping? The only number I can find is behind the trigger underneath the cocking lever. ( T 647) I also have a .22 single shot bolt action Winchester Model 68. It looks to be in excellent condition. It has a military-style leather sling. The rear sight is an ajustable peep sight, and the front sight is hooded. I have not been able to find a serial number. Does anyone know more about this rifle?