Apparently, all of mine must be. I have 75 knives that are not Case, thought about letting all 100 go.25 Case , some I bought new. One Case was made in Bradford PA which if my info is correct makes it 100 + or - years old. I think now that I have an old Case knife that is just old. Worth very little. Bradford PA was used in the late tens of 1900 and early 1920s.