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 #833 produced at the FujiGen Gakki factory in Hirooka, Nagano, Japan
Bought by Paul Abrams (USA) from the estate of (probably original owner) George Fullerton (USA)
Auctioned on eBay by Paul Abrams (USA) (twice)