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 #669 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Bought used by Jon Erling ěstreng (Norway) from a music store in Oslo (Norway); at that time it had a sticker on the headstock from Ljosland Musikk (Notodden, Norway)
Latest known user Jon Erling ěstreng (Norway)