In case anyone still is curious about this bass, here's what the file says:
77-829 LSB Fretless
top and back: Walnut
core: Maple Walnut Purpleheart
neck: Maple, Walnut, Beech, Purpleheart
scale: 34 long
fingerboard: Ebony, unlined fretless
peghead veneers: Walnut
birthday: September 20, 1977
originally made for: Lee Dorman?
That's all I've got on the file card, right down to the question mark about Lee Dorman of Iron Butterfly. He was on our user list in the mid seventies, but I don't know if it was for this bass or not. There are
pictures in the Showcase.