The retailer Maignan is recorded as having a shop at 177 rue Saint-Honoré (Henri Nocq, Le poinçon de Paris, Paris, 1926-1931, vol. I, p. 340). Another gold presentation box chased with the cipher of Louis Philippe, King of the French, in a fitted retailer's case stamped for case stamped for: Maignan / Joaillier de la Reine / 57 Rue Nve. Vivienne, the rim engraved Maignan, Joaillier de la Reine a Paris, sold Sotheby's London, The Gunter Sachs Collection, lot 208.