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 #524 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Bought by Alexey Drozhzhin (Russia) from Anton Moskvin (Russia)
Latest known owner Alexey Drozhzhin (Russia)