Hi TTC,
Here's the details from the instrument file:
MSBI-4 Series bass
top and back: Peruvian Walnut
body: Mahogany
neck: Maple and Purpleheart
scale: 32 medium
fingerboard: Ebony
inlays: Mother of pearl
peghead veneers: Vermilion
originally made for: Rothchild Musical Instruments
birthday: May 8, 1978
It was returned to the factory in August of 1978 to have cracks in the fingerboard repaired. There is no record if this is a Series I or Series II bass, but that usually happens on Series I basses.