You've got an early Spoiler bass there. Here's what I found in researching this bass:
body: solid Koa
neck: 3-piece Maple
scale: 32" Medium
fingerboard: Ebony
inlays: Pearloid (plastic) ovals
pickups: AXY4
controls: volume, filter, Q-switch, pickup selector switch, mono output
originally made for: Guitar Center, Santa Ana, CA
birthday: March 22, 1983
The original owner was in California
It was repaired in 2005 when it lived in Virginia. We reattached some loose wires, replaced the volume pot and output jack, then tidied all the wires with panduit ties. Don't know if it has the same case it did then, but it was described as "Odd shape, burgundy" at the time.