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 #009 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Bought by Rickard Engström (Sweden) from a shop called Musikanten (Sweden); he changed the volume and tone control knobs
Latest known owner Rickard Engström (Sweden)