Enfield Pattern, Regimentally Marked to V GC 1, 1859 dated, Tower, 2 Band .577 Calibre Percussion Rifle. Sn - 21676 Enfield Pattern, Regimentally Marked to V GC 1, 1859 dated, Tower, 2 Band .577 Calibre Percussion Rifle. Sn - 21676 Muzzleloader .577 Rifles