It's a replica of the original 808 with a layered graphic over the top panel with all the details.
I was wondering if anyone had got details of an original 808 case so I could do something similar (or I'll try and get hold of him.)
Here are a few of his photos:





I'm guessing he's a member of the forum, I hope you don't mind if I share them on here!
I believe the side panels had been taken off a Roland CSQ-600 to get the original look.
Tim