They are a functional work of Art. I have the survival and skinner. I use the skinner all the time. I bought it loose at a gun show and found a sheath I love at a knife show. Not original, but I bought the knife as an EDC when working on my property. It just has the right feel in my hands.
Trying to buy others of the S&W Survival series and American Series in the late 70's- 80's.
If you kno of ones, even loose without sheath, let me know.