Hi Christian-Eric,
Here's what I found in the instrument file about your bass:
serial number: 89 5227
model name: Series II
model number: LBII-4
top: Indian Rosewood
accent: Maple laminates
body: Mahogany
back: Indian Rosewood
neck: 7-piece Maple and Purpleheart
scale: 34" long
fingerboard: Ebony
inlays: mother of pearl
side markers: red LEDs
pickups: 2-SC1 and HX
controls: Series II
originally made for: Kenman Company, Switzerland
birthday: not recorded, but likely late January 1989
