Who made a single shot lever action 22 rifle and what year were they made?
* Who? Stevens, Savage, Meriden, Quackenbush, Winchester, Ithaca, Warnant Freres, et al. * When? Starting about 1880 until today. If you really want a serious answer, you are going to have to give at least a little information.
Start with the markings on the gun. Is it a Winchester,Marlin,Remington,etc? What cartridge does the rifle fire? (.22,.243,30-06,30-30,8mm Mauser?) Is it single shot or magazine fed? Is it bolt action, lever action, semi-auto? When you can answer these questions, you can get an idea of when and where it was made.