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 #166 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Salvaged from a city dumpster (!) by Darrel Mize (USA); date is approximate
Latest known owner Darrel Mize (USA)