I know very little about Camcos, but regarding the comments about it being made in the USA simply because "it says so"...
When I got into Kramer guitars years ago, I discovered that the only truly America-made Kramers were made back in the 70's. Their entire line of instruments changed in the 80's and were popularized by Eddie Van Halen.
The necks from both the American line, and the Japanese line (The Focus series) were manufactured side-by-side, and the company that made then was the now-famous ESP company. It's possible that many of the bodies were made in Japan as well.
The difference was that the American line was assembled in the Kramer plant in Neptune, NJ.
I know that's a guitar company, but this reminded me of that. I just figured I'd throw it out there...food for thought.
So, it's entirely possible that parts were manufactured overseas, but assembled here in the states on those late Camcos. Either way, that's a very nice-looking little set of drums you've got there! :)