KOLLAR, FRANCOIS(1904-1979 )9 volumes. La France travaille. Éditions Horizons de France, Paris, 1932-1934. in-4 (32,5 x 25 xm) . Original editions. Photographs by François Kollar, printed in heliogravure. Incomplete collection. Some defects. Publisher's binding with photographic illustration on the cover 1: Miners, by Pierre Hamp2 : The iron trades, by Pierre Hamp6 : The automobile, the plane, by Hervé Lauwick7 : At the sources of energy, by Lucien Fabre8 : Newspapers, libraries, laboratories, by André Thérive, Henry Joly, Jean Rostand, Lucien Fabre . 11: Building, by Léandre Vaillat12 : Sewing and fashion, by Pierre Gerber14 : Market and supply of the cities, Foresters and lumberjacks,... by André Warnod15 : The peasant life, wine growers, by Charles Silvestre.