Colt Burgess, .44-40 cal. lever action rifle.  Serial #1800, mfg. 1884.  Fair condition.  25 ½” barrel has worn rifling.  Barrel, receiver and lever have no remaining finish with lots of surface corrosion and faint address markings.  Forearm has a cracked sliver in front, secured by tape.  Butt stock has 20% old finish with four old repair plugs.  Lever action works fine.  Rarely seen!  Antique, can ship to your door.