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 #038 produced at the FujiGen Gakki factory in Matsumoto, Nagano, Japan
Refinished blue with black stripes; date is approximate
Auctioned on eBay by eBay user cwh5150 (USA)