6 people found
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Herbert Tillander
Finnish goldsmith, jeweller and gemologist
Granville Semmes
Businessperson
Eduard Josef Gübelin
Swiss jeweller, gemologist
John W. Hilton
American painter, botanist and gemologist
Frans Rietveld
Dutch resistance fighter, skipper and gemcutter
James Wooldridge
Amateur mineralogist, micromounter and gemologist
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