German(Hanover) M1854 socket bayonet(ABCN831-1)(K261)(JN0)

Hanoverian M 1854 percussion muzzle loading rifle. serial number 91 on shank. Excellent bright finished triangular blade, the bottom sides fullered. Top of the blade unit marked III, F 162, R in three rows. Socket with mortise slot and collar. MRD 23 mm. Collar is marked 0. 
Very rare socket bayonet in an excellent condition. Total lenght  >I 508 mm. No scabbard.