That case is worth about 2X what a normal case is worth...you might want to flip it. Maybe more, there are JPs out there missing cases and the owners really, really want the right one.
I don't know where the guitar was originally purchased. The switch might have happened then (it's a 2009 guitar and a 2009 case) or it might have happened later? Maybe someone owned multiple historics and wasn't paying attention when they sold one later. (That doesn't sound likely).
Anyway... For the moment I'm having too much fun just playing the hell out of this guitar (I love it) to worry about the case. I'll sort that out later.
However, it clearly isn't tobacco burst. So either the seller of that particular R8 swapped cases with another R8, or there are at least 2 guitars (coincidentally both '09 R8s), that got JP cases.
Wasn't the JP run a few years earlier than '09? I can't imagine guitar center ruined 2 JPs by losing their cases. Possible someone at Gibson or just used excess JP cases to replace damaged originals?
Interesting that this has happened before it seems. Personally, I wouldn't pay a premium for a faux autograph on a case, but to each their own.
It's pretty rare that a case like that is separated from its guitar... I passed on a Pearly Gates a while back because it didn't have the original case (according to the owner it was stolen during a brief stay in San Francisco). I was eyeballing another one at the same time with the original case for the same price that looked and played pretty much the same... so it was a no brainer.
It could've been a Guitar Center (or store) mixup... but my guess is that it was stolen.