This is a very nice all original Ithaca M49 Lever Action Single Shot Rifle chambered in .22 short, long, and long rifle.  Mechanically this rifle works great and is an awesome shooter.  These are neat rifles in that they are lever action, but are single shot with the lever lowering the breech block to eject and reload rounds.  They have been known to be accurate little rifles and have become interesting collectibles over the past decades.