[Anton Tokman]

Hello
“Баянита 43” (Bayanita 43) was produced in the end of 1960s- beginning of 1970s at the Rostov bayan factory (Ростовская баянная фабрика). Based on bayan “Rostov-Don” parts. Factory is abandoned since 1992.

https://forum.harmonica.ru/viewtopic.php?t=137541&p=321513
https://en.wikipedia.org/wiki/Bayan_(accordion)