SIBYL DUNLOP 1889-1968 Attrib.
Arts & Crafts Pendant 
Silver, amethyst, chalcedony, citrine, cornelian, sapphire,
emerald & pearl
Pendant length: 10 cm (4.1 in) Width: 8.6 cm (3.4 in)
Chain length: 59 cm (23 in)
British. Circa 1925
Fitted case
Literature: cf. Jewelry & Metalwork in the Arts & Crafts Tradition,
Elyse Zorn Karlin, 1993, page 54