A friend at work brought me a knife he garbage picked along with some fishing equipment. It looks the same as a british commando knife. On one side of the guard it is marked Sheffield England, the other side has 1983 and what looks like a broad arrow stamp.Has the scabbard and is pretty nice except for the handle is a little loose. Any ideas? Does this have any value? He asked me to sell it as the economy is hurting him like the rest of us.