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.
Bought by original owner Brian W. (USA) from Prosound Music Center, Colorado Springs (USA); date is approximate
Heartfield-related instrument #829 produced at the FujiGen Gakki factory in Hirooka, Nagano, Japan
Bought by Israel B. (USA) from Brian W. (USA); date is approximate
Bought by Alan Lighton (USA) possible NOS from Israel B. (USA)
Last known owner Alan Lighton (USA)