Ok so regarding the wood/finish this is what I have found:
"BB is the finish code for Brazilian Brown, a semi-opaque swirl of dark brown over the clear finished mahogany body. This finish was only offered in a single year, 1982, and it was not one of the most popular offerings, making this quite rare."
So I'm pretty certain it is a mahogany body. As for the finish, I have had the neck off to check the pocket and yes, those incredibly elaborate swirls are not actual grain/figuring - they are part of the finish that was presumably done by hand.