Hi Scott,
Here's the details that I found in the file.
MSBI-4 Series I Bass
top: Peruvian Walnut
accent: none
body: Mahogany
neck: Maple, Purpleheart, and Beech
scale: 32 medium
fingerboard: Ebony
inlays: mother of pearl
peghead veneers: Avodire
originally made for: Rothchild (our distributor at the time)
birthday: March 7, 1978 (a pisces)
There's no other information available.