16.75" unfullered blade (face of shank to tip), 20.75" in overall length. 3.875" socket mortised for a top stud with a 1.95" muzzle to stud distance and a .93" muzzle diameter. Face of blade marked with a single punch dot hardness test, rear edge of socket with engraved mating or rack number 6. A clear diagonal weld line is visible on the face of the blade, 11"-12" from the tip where the steel portion of the blade was hammer welded to the rear portion and socket. A solid example of a 19th century India Pattern British socket bayonet.