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 #124 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Bought by Nicolai Vlasov (Russia) from someone else in Moscow (Russia)
Latest known owner Nicolai Vlasov (Russia)