French metallurgists Jules Henri Debray and Henri…

1873 CE

French metallurgists Jules Henri Debray and Henri Étienne Deville examine alloys of platinum and iridium for the Russian government in 1873 to determine their suitability for coinage.

Locations
Paris Ile-de-France France View →

People
Henri Étienne Sainte-Claire Deville View → Jules Henri Debray View →

Groups
Russians (East Slavs) View → France (French republic); the Third Republic View →

Commodities
Strategic metals View → Money View →

Subjects
Chemistry View → Numismatics View →

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