Antique Marks Antique Ceramics Antique Glass Antiques Shop Antique Terms Latest Updates Sevres Porcelain Your Guide to Antique Pottery and Porcelain . Marks Sevres Porcelain The company history , its products , its double L mark and the main . periods Sevres porcelain history starts in 1738 when the Marquis Orry de Fulvy , brother of the Minister of Finance , obtained from the French king Louis XV a licence to manufacture porcelain in the Saxon manner At that time the brothers Dubois , who were arcanists that fled from Chantilly , had already experimented to produce porcelain at the Chateau de Vincennes . Together with Gravant , they succeeded in producing a type of soft paste frit-porcelain around 1745. The Sevres Porcelain Factory was originally founded in 1738 at Chateau de Vincennes ,