Hi Henk,
Here's the details I found in the file for your bass:
top: Walnut
accent: Maple laminate
body: Mahogany
neck: 3-piece Maple
scale: 32" medium
fingerboard: Ebony
inlays: Pearloid (plastic) ovals
pickups: AXY, neck pickup moved 1/2" closer to bridge
controls: volume, pickup selector, filter, Q-switch, mono output
originally made for: Wils Musikimport, The Netherlands
birthday: May 2, 1991