See Aileen Dawson, French Porcelain, A Catalogue of the British Museum Collection, London, 1994, pp. 203-204, cat. no. 169 for another example of this model with a variant incised mark on the reverse. Jean-Charles Leguillier whose incised mark appears on the reverse of the present plaquette was active at Sèvres as a repairer (repareur mouleur d'ovale) 1812-1848.