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Reverse
Mark

ROD EDWARDS 1921-c.1982
Modernist Brooch / Pendant
Tourmaline
H: 5 cm (1.97 in)  W: 6 cm (2.36 in) 
Marks: '18ct' & 'Rod Edwards'
British, c.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
Ref: 1859