Plique-a-jour enamel & diamond "en tremblant" dragonfly brooch atrributed to Eugene Feuillatre.
Pair of Art Nouveau Gold, Silver, Plique-a-Jour Enamel and Diamond Earrings
Fouquet brooch, 1905
Art Nouveau. Demantoid Garnet, Diamond, Plique-à -Jour Enamel, Silver-Topped Gold Brooch
Enamel, Diamond, Gold and Silver Brooch by René Lalique c.1895