In the ten years (1835-46) following Johnson's Brazilian palladium-gold refining, the price of Palladium had fallen -44%.
Even more extraordinary, in the previous twenty five years (1821-46) Palladium's price had fallen -76%.
1846: 1 Troy Ounce Platinum (refined) = Fr 38.88 (USD$ 7.49)
1821/2: 1 Troy Oz Palladium (mfg. @ Paris) = Fr 591.85 - 610.85 (USD$114.50 - 118.13)
Citation: Revue scientifique et industrielle, Volume 27, 1846, p.132
Even more extraordinary, in the previous twenty five years (1821-46) Palladium's price had fallen -76%.
1846: 1 Troy Ounce Platinum (refined) = Fr 38.88 (USD$ 7.49)
c. 1833: 1 Troy Oz. Palladium (refined, unmfg) ~ Fr 249 (USD$ 48.)
1845: 1 Troy Oz. Palladium (semi-refined, unmfg) = Fr 199.04 (USD$ 38.34)
1846: 1 Troy Ounce Palladium (refined) = Fr 139.95 (USD$ 26.69) Citation: Revue scientifique et industrielle, Volume 27, 1846, p.132
Citation: Sciences mathématiques, physiques et naturelles, Volume 14 (1846) p.67
The Palladium Low in Sterling probably occurred prior to Johnston's decision to furnished the metal to the Geographical Society for the Wollaston Medal. (1846.)
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