Well, at least part of the mystery is solved. I did have the serial number correct, it IS 93 K7829. It is clearly marked inside the cavity. However, that still leaves the wood mystery. This bass is deffinitely NOT a Mahogany body, its Maple and, there is no blemish of any kind, in the wood or otherwise, on the back of the body or, anywhere else for that matter. Any help clearing up this mystery would be greatly appreaciated. Played it last night for the firt time with my gang of players, great fun and it sounds very cool. I found myself tripping over the (High C) 5th string a few times, it'll take a little getting used to. I think I'll also need to do some fine tuning on the set up, with the help of the prior owner. Overall though, a Great Bass, I love it. Thx, Videroo