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 #629 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Auctioned on eBay by eBay user seger_hall (Japan)
Auctioned on eBay by eBay user kiyomizu.music-store (Japan)
Auctioned on eBay by eBay user deepkashi (Japan)
Auctioned on eBay by eBay user sunatona (Japan)