1890?: 1 Troy Ounce Iridium ~ Fr 373.20 (USD$ 72.46)
1893/4: 1 Troy Oz. Platinum ~ Fr 90. (USD$ 17.50)
1895: 1 Troy Oz. Iridium = USD$ 15.
Citation: Proceedings: General index to volumes one to fifty of the Proceedings ; American Pharmaceutical Association (1894) p.1041
Citation: Revue des questions scientifiques, Vol. 33-34, Société scientifique de Bruxelles, Union catholique des scientifiques français (1893)p.691
Citation: Boletin de Minas, Industria y Construcciones (1892) Peru.
2/24/1892:
Most likely a typo, the price of Osmium was Fr 15,000./kg, not 1,500. Had the price dropped ~90% (well-below Platinum) in two years, such a crash would have been noteworthy and occasioned suggestions that Osmium was 'much less costly' (w/explanations why.)
1893/4: 1 Troy Oz. Platinum ~ Fr 90. (USD$ 17.50)
1895: 1 Troy Oz. Iridium = USD$ 15.
Citation: Proceedings: General index to volumes one to fifty of the Proceedings ; American Pharmaceutical Association (1894) p.1041
Citation: Revue des questions scientifiques, Vol. 33-34, Société scientifique de Bruxelles, Union catholique des scientifiques français (1893)p.691
Citation: Boletin de Minas, Industria y Construcciones (1892) Peru.
2/24/1892:
Most likely a typo, the price of Osmium was Fr 15,000./kg, not 1,500. Had the price dropped ~90% (well-below Platinum) in two years, such a crash would have been noteworthy and occasioned suggestions that Osmium was 'much less costly' (w/explanations why.)
1892: 1 Ozt. Osmium (pure, lowest price) = Fr 466.60 (USD$ 90.60)
Citation: Chemical news and journal of industrial science, Vol. 67 ; Sir William Crookes (1893), p.173
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