Hi everyone, this is my first post on the forums. My uncle gave me this commando knife this morning, he said he was given it when he was 12 (he is now 74yrs old) by a soldier at the end of the war. Can any one give me any details on it such as model or mark, if such things exist? The only markings I can see are an arrow above the letter "I" on the cross guard and a very small raised number 3 near the end of the handle.