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 #144 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Bought by the original owner; date is approximate
Bought by eBay user goodnews7121 (USA) from the original owner, and auctioned on eBay; at the time it was described as a "closet queen", in really good shape, with all the case candy (and, indeed a hard case)
Auctioned on eBay by eBay user velo-sport; still complete with case candy
Auctioned on eBay by eBay user gar_pane (USA); still complete with case candy