Reunion of seven volumes from the collection La France travaille, Éditions des Horizons de France, Paris, circa 1937-1939, including the titles: Le Rail, L'Automobile-L'Avion, Marins et Bâteliers, Gens de Mer, Les Métiers du Fer, Aux Sources de l'Énergie, Mineurs, each lavishly illustrated with black and white photographs showing French trades and industrial infrastructures (wear)