The company furnished optical instruments to the Paris Observatory, the Faculté des Sciences de Paris, the Bureau des Longitudes, the Camille Flammarion Observatory in Juvisy, the Société Astronomique de France, French government ministries, several observatories in France and in other countries, meteorological stations, bridge and road engineers, railroads, and mines. It won a gold medal at the Exposition Universelle in Paris in 1900.