This is the No.7 mk1 bayonet, the penultimate socket bayonet fitted to the Lee-Enfield no.4 rifle. The simple No.4 spike transformed into this elaborate knife bayonet with rotating handle, and then finished as a cross between the two, the No.9, a knife bayonet without handle which served only one purpose.  In good condition with very good point and factory sharpened edge. Stamped No7.MK.1/L on one ricasso, and a circle on the other, like a Poole logo of P in a circle but no P. Broadarrow and inspection stamped on the rotating pommel. Very good undented and complete scabbard, correct steel throat and most of blacked finish, fitted into period webbing frog. A very original example of this sought-after bayonet.