Short description: In Russian. Kulakov, Vissarion Ivanovich. Research of optical rangefinders. Moscow Leningrad: ONTI. Chief Editor of Geological Exploration and Geodetic Survey, 1937 (Leningrad: type named after Yevg. Sokolova). Issledovanie opticheskikh dal'nomerov. In Russian /Research on optical range finders . 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. SKU5167756