Hi Chris,
I found the details about your bass. There is only the 3x5 index card with some scant record of the construction, and we haven't seen it here since. Anyway, here's what I know:
top and back: California Walnut
core: Birch
neck: Walnut and Maple, 30.75 short scale
fingerboard: Ebony with Abalone inlays
peghead veneers: Walnut
originally made for: LD Heater, OR
birthday: not recorded
There is one previous registered owner in CA from 1991.
There's no other information to share. But I've added the photos from this page to the file.