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Origin and history

The arms factory of Saint-Étienne (MAS) finds its origins in the medieval cutlery crafts of the city, famous since the Middle Ages for its 80 mills producing weapons of war and hunting. In 1665, a royal arms store was established in Paris, supplied by Saint-Étienne. The Royal Manufacture of Arms was officially founded in 1765 under Louis XV, led by Jean Joseph Carrier de Montieu, before being involved in arms trafficking and supporting American insurgents. At the time of the Revolution, production exploded, in Saint-Étienne the nickname "Armeville", and the factory spreads into disused churches such as the Ursulines convent.

In 1838, the Jovin brothers handed over the factory to the state, whose annual production reached 15,000 to 30,000 weapons. Faced with the lack of capacity under the Second Empire, a new modern factory was built between 1864 and 1870 on 12 hectares near Carnot Square. Designed in a neo-classical and rationalist style (red bricks, white stones), it includes steam machines, specialized workshops and accommodation for managers. In 1894, the factory employed 10,000 workers and produced 1,600 rifles a day, becoming a state establishment under the supervision of the Ministry of War.

The 20th century marked the decline of MAS, which was the rhythm of wars and crises. In 1963, production diversified (blazed, anti-tank weapons, NBC protections), but the number fell from 11,000 in 1940 to 2,200 in 1981. Resumed by GIAT Industries in 1989, the factory closed definitively in 2001. The site is then reconverted: Cité du design, accomodations, optical research centre, and art schools. Since 2006, several elements (clock building, large double H factory, gardens) have been classified as historical monuments.

The architecture of the factory, inspired by the Royal Saline of Arc-et-Senans, embodies the industrial power of the Second Empire. Organized around a symmetrical court of honor, it combines eclectic style (Louis XIII, Napoleon III) and technical innovations (iron, cast iron). The gardens, keeping their original essences, and the administrative buildings (such as the hotel of directors, partially destroyed) testify of this time. The reconversion of the site today preserves this heritage, while adapting to contemporary uses (culture, education, habitat).

Among the weapons produced, the Chamelot-Delvigne Model 1873 revolver remains emblematic. The factory also collaborated with figures such as Beaumarchais, via the Nantes shipowner Jean Peltier Dudoyer, to support American insurgents. Its history reflects the political upheavals (Rvolution, world wars) and technological changes (machine tools, standardization) that have marked the French industry.

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