fnb, I believe the Rem 3200 and Peerless were made in this country, as well as the Ruger Red Labels of course. Could the oddball you ran across be a Morrone, by any chance? Fewer than 500 made, from what I can find, and I can't recall ever having seen one.

I think there's another in the works: a new Ithaca OU which will be made in this country; same outfit that's making the Model 37's currently. And there's also that Parker OU. Don't know whether those are still being made.