Short description: In Russian. Feldman, Grigory. Air propeller as a special case of supporting surface. Moscow: type. Kh. Barkhudaryants, 1910. Vozdushnyy vint, kak chastnyy sluchay podderzhivayushchey poverkhnosti. In Russian /Air propeller as a special case of supporting surface. 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. SKU3774477