I have the same knife that I acquired from my wife’s grandfather’s estate. He passed in 1977. He hadn’t been hunting since the mid-1960’s, so mine is at least 55 years-old. Mine has a home-made sheath with a sharpening stone glued to it. I called Marbles years ago to get a factory sheath but got nowhere with them.
I still use this knife for skinning. It holds an edge fairly well, but takes a bit of work to resharpen.