France, 1824: First Report of Russian Platina (?)

circa September, 1823?: 1 Troy Oz. Platinum (refined) = Fr 24.38 (USD$ 4.71)

Paper read in Paris, Late August 1825.  The Platinum tube in the experiments may have been purchased some time earlier.

c.1824/5: 1 Troy Oz. Platinum (Paris Mfg) = Fr. 31.1035

Citation: Annales des sciences d'observation. Jacques-Frederic Saigey et Francois 
 





From context, Professor Julia de Fontenelle refers to platina prices and not refined sheet Platinum nor retail Platinum-ware.He was 44 years old when this first edition was published; it is unclear when (in history?) he had known platina to be sold for Fr. 30 per once. That allusion (to periods of shortage or price disruption) signifies a Price High: unknown date (c. 1798? 1802?)

circa February, 1824: 1 Troy Oz. platina (ore) = Fr 20. (USD$ )

c. February, 1824:

Citation: Manuel de chimie médicale, Jean-Sébastien-Eugène Julia de Fontenelle (1824) p.189

Humboldt's voyage to the Russian lands occurred in 1829, but he presumed at least the possibility of Russian platina finds as early as 1821.

circa November, 1825:

Citation: Annales de chimie et de physique; Joseph Louis Gay-Lussac, François Arago (1825)

1824 Catalogue, comparing same items items at assumed same weight. Platinum items were 33% - 50% cheaper in 1845.  It would appear Pixii marked up Paris-manufactured Platinum at least 30%, in 1824.

July/Aug. 1824: 1 Ozt Platinum (Producer Mfg, Whols./Ret.) = Fr 47.78 (USD$ 9.10)  

1824: 1 Ozt. Platinum (Semi-Mfg., Whols./Ret.) = Fr. 62.20 (USD$ 11.84)  

Citation: Catalogue d'instruments de physique, chimie, optique, mathématiques de Pixii (1824)


 

1845: 1 Troy Oz. Platinum (Paris: Semi-Mfg., Retail) = Fr. 46.65 (USD$ 9.) 
 
Citation: Catalogue et prix des instruments d'optique de physique, de mathématiques... H. Bossange (1845)
 




June 1894: