Factory mark in blue enclosing the date-letter S for 1771 under the painter’s mark B.n. for Nicolas Bulidon (active at Sèvres 1763-92).

From the service ordered by Madame du Barry in 1770.  The design attributed to Augustin de Saint-Aubin survives in the Bibliothèque de l’Institut, Paris.  This is the first service bearing the owner’s monogram made at Sèvres, and also the first to feature neoclassical vases.  It was delivered to Madame du Barry on 29 August 1771, and was probably used for the inaugural reception which she gave for Louis XV at the Pavillon de Louveciennes in September of that year.  The service is next mentioned in her posthumous inventory in 1794, and pieces are now in various museum collections all over the world.