ROD EDWARDS born 1921, Sydney, Australia
Modernist brooch 
Gold with a cabochon tourmaline
Marked: ‘18ct’ & ‘Rod Edwards'
Length: 5cm Width: 6cm
English. Circa 1970
Fitted case
Literature: cf. Modern Jewelry 1890-1964,
Graham Hughes, 1963, page 228
The Technique of Jewellery by Rod Edwards, 1977,
page 65, for a similar piece
Collections include: The Royal Museum of Scotland, Edinburgh,
whose collection includes a tourmaline ring
by Rod Edwards, in the same style