c. 1880: 1 Troy Ounce Pt (SPb mkt) = 4.7470 руб
1881: 1 Troy Oz Pt (SPb mkt) = 5.8863 руб (£ 0.6139)
Where 1 Poud @ 3,100 руб = USD$ 2,039.80, the weight of Russian ore (1881 import) would be 5.76 Pouds (94.3576 Kgs; 3,033.67 Ozt.)
1881: 1 Troy Ounce platina (SPb: 83%, Mkt/Poud) = 5.8863 руб (USD$ 3.8261)
1881: 1 Troy Oz. Pt (SPb: .999, Mkt/Poud) = 7.092 руб (USD$ )
1881: 1 Troy Ounce platina (SPb: 83%, Mkt/Kg) = 6.7693 руб (USD$ )
1881: 1 Troy Oz. Pt (SPb: .999, Mkt/Kg) = 8.1557 руб (USD$ )
Citation: Archives des sciences physiques et naturelles, Vol. 15 1903
1881: Pt Yield = 182.256 Poud = 7,290.25 Funt = 95,984.3 Ozt.= 2,985.45 Kgs
1881: Au Yield = Poud = Funt = Ozt. = Kgs
1890. Same data.
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