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 #406 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Bought at an estate sale by eBay user dewsthedew (USA)
Auctioned on eBay by eBay user dewsthedew (USA)
Auctioned on eBay by eBay user brynzgtrz (USA)