The design looks very much like a S&W boot knife I had back in the 1980's. They were made by Frost Cutlery for S&W if I recall correctly. I believe all current production S&W knives are made by Schrade/Taylor. Your particular knife probably has a 440a stainless steel blade and appears to be a model 6083 or 6084 depending on the blade shape and was part of the Smith & Wesson American Series/Sportsman Knife.You can try a google image search to find an exact match.