to a small glass furnace already working at Tourlaville, near Cherbourg in Normandy, and the premises in Faubourg Saint-Antoine were devoted to glass-grinding and polishing the crude product. Though the Compagnie du Noyer was reduced at times to importing Venetian glass and finishing it in France, by September 1672 the royal French manufacturer was on a sufficiently sound footing for the importation of glass to be forbidden to any of Louis' subjects, under any conditions. In 1678, the company produced the glass for the Hall of Mirrors at the Palace of Versailles. In 1683, the company's financial arrangement with the State was renewed for another two decades. However, in 1688 the rival Compagnie Thévart was created, also financed in part by the state. Compagnie Thévart used a new pouring process that allowed it to make plate glass mirrors measuring at least , much bigger than the which the Compagnie du Noyer could create. The two companies were in competition for seven years, until 1695, when the economy slowed down and their technical and commercial rivalry became counterproductive. Under an order from the French government, the two companies were forced to merge, creating the Compagnie Plastier. A mirror factory in the village of Saint-Gobain in Picardie gave its name to the present company. In 1702, Compagnie Plastier declared bankruptcy. A group of Franco-Swiss Protestant bankers rescued the collapsing company, changing the name to Compagnie Dagincourt. At the same time, the company was provided royal patents which allowed it to maintain a legal monopoly in the glass-manufacturing industry up until the French Revolution (1789), despite fierce, sometimes violent, protests from free enterprise partisans. 1789–1910: Industrial Revolution In 1789, as a consequence of the French Revolution, the state financial and competitive privileges accorded to Compagnie Dagincourt were abolished. The company now had to depend on the participation and capital of private investors, although it continued to remain partly under the control of the French state. In the 1820s, Saint-Gobain continued to function as it had under the Ancien Régime, manufacturing high-quality mirrors and glass for the luxury market. However, in 1824, a new glass manufacturer was established in Commentry, France, and in 1837, several Belgian glass manufacturers were also founded. While Saint-Gobain continued to dominate the luxury high-quality mirror and glass markets, its newly created competitors focused their attention on making medium and low-quality products. The manufacture of products of such quality made