Hi Garth,
You're absolutely right - this IS a Mahogany top and back.
top: Mahogany
back: Mahogany
body: Mahogany
neck: Maple and Purpleheart
scale: 34" long
fingerboard: Ebony
peghead veneers: Mahogany
originally made for: Studio 42
birthday: October 10, 1979
We had this bass in the shop in 1980 and refinished it for the original owner in Pennsylvania. It got a new owner in Pennsylvania in 1998 and that's the last we heard from it until you stumbled across it. The bass is really quite stunning!