Hi Adrian,
Here's the details from the instrument file:
top: Flame Maple
accent: Purpleheart pinstripe
body: Mahogany
neck: 3-piece Maple
scale: 34 long
fingerboard: Ebony
pickups: Alembic MXY
controls: volume, pan, bass, treble
output: mono
birthday: April 3, 1997
originally made for: Kenman Company
I'm pretty sure it didn't leave here with the dark spots on it, so I'm going to take a guess about them. The original finish is a very thin polyurethane, with almost an oil-look. I think at some point between April 2, 1997 and the day you purchased it, that some creative person tried to stain the bass.
Is the texture or feel at the dark spots any different from the rest of the bass?