All About Pocket Knives

Bought at an antique shop the other day. Was missing the thumb stud. Added one from another knife. Only marking other than BUCK is the blade steel type 7Cr17MoV.
Curious as to whether it is USA or China made and the model. No big investment(5 bux).

I suspect it's a fake.

I can't find any evidence that Buck ever made such a knife, but I found this listing on a website for a business located in China.