"Short description: In Russian. Yaroslavsky, Lev Isaakovich. Multiple frequency telegraph. Kharkiv; Kyiv: State Scientific and Technical Publishing House of Ukraine, 1935. Mnogokratnoe chastotnoe telegrafirovanie. In Russian /Repeated frequency telegraph . The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU5318804"