France, 1851: Summary of the French Platinum Industry, to 1851

1850: 1 Troy Oz. Platinum (UK: Sheet, Whols.) ~ Fr. 40.20 - 40.90 (£ 1.60)
 
1851: 1 Troy Ounce Platinum (Mfg, Intrinsic?) = Fr 37.324 (USD$ 7.09 - 7.28)

1853: 1 Troy Oz. Platinum (Semi-Mfg, Ret.) = Fr 46.65 (USD $ 9.14)



1856 Deleuil Catalogue: 50 Large Elements cost Fr 275. @ Fr. 5.40, ~USD$ 50.93



Dr. Silliman visited Paris in 1851 and purchased Bunsen's Carbon Batteries at that time; the 10" battery element cost ~$1.10 (~Fr. 5.64 - 5.79, ∴ Fr 5.50)

 

1851: 
  





August 1851: Hachette's Platinumware about 2x Silverware, Retail.

Advertisement: Catalogue des articles de matériel d'école qui se trouvent chez L. HACHETTE et Cie, Rue Pierre Sarrazin, No. 14, à Paris.


1851 French Imports of Platinum: 

1851-55: 1 Troy Ounce Platinum (Tariffed Rate) = Fr. 93.31