Convertible miniature pendant that can form a brooch in 750 ‰ gold. Louis XVI-style cartouche-shaped setting with floral and ribbon-knot decoration in two shades of yellow gold 750 ‰. The center adorned with an enameled oval medallion depicting the portrait of Madame DERUELLE, the whole surmounted by a ribboned bow from which blooms a garland of flowers joined at the bottom by a shell. On the back, an inscription engraved on the souvenir holder reads: "Madame DERUELLE: Madame DERUELLE circa 1770. Removable clasp. PB. 24.8 g - D. 8 x 4.5 cm