Where the French Franc and Assignat Rouble were at par 1:1, this estimation appears approximate to the 1824/5 Paris Price for refined Platinum. (The Silver Rouble was 4x more valuable, too high.)
1824-33: 1 Troy Ounce platina (ingots) = 33.80 руб (Paper)
1824-33: 1 Troy Ounce Platinum refining COST = 2.20 руб (Paper)
1824-33: 1 Troy Ounce platina (ingots) = £ 1.62
1824-33: 1 Troy Ounce platina (ingots) = USD$ 7.89
1824:
1824-1833: 460 Puds (242,236 English Troy Ounces) of 'Pure Platina' estimated to be worth Rs. 8,186,620. (Fr 8,177,615 ; £ 323,902 ; Rthlr 2,323,362 ;USD$ 1,632,667)
Citation: Annalen der Pharmacie, Volumes 13-14; Justus Liebig
Citation: Annalen der Pharmacie, Volumes 13-14; Justus Liebig
1824-33: 1 Troy Ounce Platinum refining COST = 2.206 руб (Paper)
"The expected expense to refine a livre of forged platinum is close to 29 rubles, but this sum still always been saved."
Citation: Zur Chemie des Platins in wissenschaftlicher und technischer Beziehung; Johann Wolfgang Döbereiner (1836) p.8
Citation: Handbuch der allgemeinen Staatskunde von Europa: Die ..., Vol. 1, Issue 1; Friedrich Wilhelm Schubert p.220
1841 German calculation
1855 estimation:
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