More recent Sheratons have a serial number that identifies the factory and year of manufacture. Some of the Epis put the SNs on stickers which got pulled off and lost; there have been a number of factories, in at least two countries, that have turned out S2s and there's a fair amount of variation.
The Sheraton was a Kalamazoo MIA guitar until about 1970; when production shifted overseas (initially Japan, later Korea) it became the Sheraton II. The more recent Sheraton II Elites are Japanese. Important differences are (depending on the year) a stop or trapeze tailpiece, and mini or full-size humbuckers. The quality of the fingerboard inlay is very good: real mother of pearl and abalone, while USA Gibson Les Pauls use plastic!
I have a Samick-made '95 which is a very nice instrument: attractive without being too ornate, and a good player. I put Seymour Duncans and decent pots in it right after I got it, and it's a nice little axe.
If you know the SN, post the first four or so characters of it and we may be able to figure it out.