France 1833: Platinum in Counterfeit Gold

c.1832/3: 1 Troy Ounce Platinum (Paris: Mkt) = Fr. 22. (USD$ )

Citation: Handbuch der contor-wissenschaft, Leopold Carl Bleibtreu (1835), p.17

c.1835?: 1 Troy Oz. Platinum (Retail?) = Fr. 31. (USD$ 5.80)

Citation: Médecine légale, théorique et pratique: avec le texte..., Vol. 2, Al. Devergie, J.-B.-F Dehaussy de Robécourt (1836) p.895.

1835:
 
Citation: Dictionnaire des alterations et falsifications des substances ..., Vol. 2, Alphonse Chevallier (1852) p.62
  

Ore price collapse, importation by years: 1832,1833,1834,1835,1836

Citation: Encyclopédie du commerçant. Dictionnaire du commerce et des marchandises ... Guillaumin (1841) p.1791

1830s: Russian platina was of lower quality than Colombian, and more expensive to refine.
 

 Importation:

1833: French platina import (80% ore) = 85.78 Kgs. = 2,758 Ozt
1833: French Pt import (.999) = 68.62 Kgs. = 2,206.4 Ozt.