There are sellers who buff out corrosion and wear on older Case knives. I got one of those, luckily I did not pay too much. If I had been able to inspect, I would have noticed the uneven buffing of the plastic on the handle, and the rounding of letters in the tang stamp. Some of these characters are actually quite skilled. I do know for US M1 rifles, stamps duplicating WW2 era acceptance marks have been made, and used to create like new, all matching rifles. I do remember seeing absolutely mint Colt and Smith and Wesson pistol boxes on ebay. For rare pistols made in the 1930's. The boxes were selling for hundreds of dollars. It was obvious to me, that these were newly made. Probably in China. Might be a market for like new, vintage Case knives, made in China. Or stamps made to duplicate vintage tang markings.
The bottom line is, the more valuble something is, the more likely it is being counterfeited. Or, if appearing new is important to the value, then items are being refurbished, or manufactured new, but with the appearance of vintage manufacturer.
I am going to claim, that modern Case knives are every bit as good, if not better, as vintage. And most of the vintage Case knives were CV, and those rust. So unless you want a Case knife that coincides with your birthday, or an
Apocalyptic event date, just go out and buy a nice new Case knife, and it will serve you well. I survived both
Y2K end of the world event and the
Azetec Apocalypse. Not that I collect those years, but, maybe I should, to remind myself how grateful I was to escape these horrible events alive.
Give your Cat a vintage Case made the year it was born. I am sure it would appreciate the gift.