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 #551 produced at the FujiGen Gakki factory in Hirooka, Nagano, Japan
Bought from the original owner (USA) by someone else (USA); date is approximate
Bought by Michael Long, California (USA) from someone else, California (USA)
Latest known owner Michael L. Long (USA)