French M 1874 Gras bayonet, Matching and Navy marked by St-Etienne 1875. (ABCN1491-3)(K0)(JN0)

M 1874 Gras rifle. Serial number: F 82140 Matching! on crossguard. Superb T- back blade with French maker's name Mre. d" Armes de St. Etienne 7bre 1875 (= Made at the St Etienne arsenal in July 1875) crisp on blade spine. Excellent brass pommel and a bright polished crossguard with a forward swept quillon and a muzzle ring. MRD: 17.1 mm. Blued external spring is somewhat pitted. Crossquard with a matching serial number and a faint Navy anchor mark. Right quillon shows some light peppering only. 3 French inspection markings on the left qullion. Very good wooden grips riveted to the blade tang. Left grip with a few small indentations. 
Very good blued matching scabbard with matching tiny Navy anchor marking. Some peppering spots only, but no dents.

Early dated, scarce matching and Navy marked Grass bayonet