Thanks fellas. I picked this up at an estate sale and after I bought it the seller told me he thought the owner had carried it in Vietnam. I talked to a family member of original owner (he is now deceased) and was told he was an E6/SSG with the 101st Abn Div and carried the knife in Vietnam in 1966. She remembered him stating he bought the knife in country for $20 and brought it home after his tour so unsure of it's origin prior to that. I have no photos of him with the knife but the story is good enough for me as it's going in the keeper pile - wish it could talk. There's a few other photos of it in the "This Old Randall" thread.
It's a cool old knife and I got a good deal on it but it was over $20...