c. 1815?: 1 Troy Ounce platina @ Paris = Fr 4.- 5. (USD$ 0.71 - 0.88)
Citation: Nouveau dictionnaire d'histoire naturelle, appliquée aux arts, à ..., Vol. 26 By Jacques Eustache de Sève (1818) p.583
1815: 1 Troy Oz. Platinum (sponge) = Fr 15.24 (£ 0.7126)
1815: 1 Troy Oz. Platinum (sheet) = Fr 18.29 (£ 0.8552)
The source price of platina plunged as the Spanish Crown's authority in Cartagena & Choco waned, c. 1815-19:
Citation: Mémoires du général Morillo, comte de Carthagène, marquis de la Puerta ... Pablo Morillo (conde de Cartagena), José Domingo Díaz, (1826)
Generic, dubious & republished! c.1789 and unknown other high years
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