That's a japanese (90's ?) version (the one on the left). It fits perfectly the Seymour Duncan pickups rings. I haven't tried but that's "what somebody told me". The Jackson logo is painted on the cover.
http://img131.imageshack.us/img131/7107/dscn4772xl0.jpg[/IMG
[IMG]http://img131.imageshack.us/img131/9199/dscn4773dj2.jpg[/IMG[/quote]
I still haven't installed that pickup (J50B)in any guitar but I guess I'll give it a try. What's it like?
[quote="<-Warheart->, post: 7873509"]Mine doesn't have pole pieces sticking out the bottom but it's USA made. I obviously don't know the difference, the backs have lots of variation, I've never cared enough to memorize them all.[/quote]
Word up, I'll just assume mine is USA then.