Below you will find an overview of the known dated events in this instrument's history. If you have any to add, please feel free to contact me.
Heartfield-related instrument #229 produced at the FujiGen Gakki factory in Hirooka, Nagano, Japan
Bought by David Holbrook (USA) from the Bass Guitar Museum site; made fretless and done several other modifications including pickups, knobs, hipshot A bridge and adding Aquilar OBP-3 preamp
Auctioned on eBay by David Holbrook (USA) (twice); at that time it was refinished in satin mandarin orange transparent with gold hardware, red copper Q tuner pickups