See Brigitte Ducrot, Porcelaines et Terres de Sèvres, Musée du Château de Compiègne, Paris, 1993, p.330, fig. 284 for a similar cup and saucer currently in the château de Compiègne and formerly in the inventory of the château de Malmaison, M.M.P.O. 1133 and entered in the Livrées au Mobilier de la Couronne for the Empress on the 14th of February 1858.
Twelve chocolate cups Calice with the portrait of the Empress are entered in the Sevres register on 18 October 1858, and in the magasin de vente on 31 December 1858.
The image on the present example was inspired by a photographic portrait taken by la Maison Braun et Cie. and is a companion to one of the Prince by Mayer et Pierson which were conserved by the Emperor.