SIBYL DUNLOP 1889-1968
Arts & Crafts Cross
Silver, moonstone & sapphire
Length: 6.2 cm (2.4 in)  Width: 4.6 cm (1.8 in)
British. Circa 1925
Fitted case

Literature: cf. Jewelry & Metalwork in the Arts & Crafts Tradition,
Elyse Zorn Karlin, 1993, page 54