Needs clarification of possibility of digitizing.
Producer Centrnauchfilm (CNF)
Director: Shkarina V., Feljdman Z., Shifman V., Chubakova G.
Script writers: Bojko T., Shifman V., Kovaljskij Yu.
Operators: Feljdman Z., Sosenkov M., Suprun V.
Annotation3. "Luch-universal" 4. "Violin by Denis Yarovoi" On the work of D. Yarovoi, who developed a new method for tuning musical instruments.