This is an original WW2 era production New Zealand/Australian Commando Knuckle Knife. These WW2 fighting knives are scarce and fairly desirable. The knife blade is worn with dark patina throughout and surface oxidation. There's no deep rust or pitting however, and the edge is not very sharp. There appears to be a faint maker stamp on one side of the blade base, "AKE REGD". The blade is magnetic, but the handle is aluminum and non-magnetic.