Good condition original antique Needham metallic cartridge conversion US Model 1861 Springfield Rifle Musket. Mechanically functions fine. Bore has been reamed out to .64 caliber smooth bore, original chambered to .58 caliber centerfire and rifled. Lock is marked “U.S. / BRIDESBURG” with the American eagle and dated 1864. Metal has mostly brown and gray patina. Smooth bore is fair with some pitting. Stock has original finish and shows some wear and handling marks. Complete with correct original ramrod. A hard to find Needham conversion for your collection.