Where British traders in St. Petersburg paid Banco Rouble rates for platina, the highest rate was obviously from the Mint; black-market platina was sold cheaper. (Unknown.)
I Kilogram off-market Russian platina cost ~ £ 15.52, 1 kg Mint platina cost £ 30., 1 kg Mint Sponge cost £ 40., 1 kg Mint Platinum cost £ 50.
July, 1827:
7/27: 1 Troy Ounce platina (SPb: 71.37% pure) ~ £ 0.667
11/27: 1 Troy Ounce platina (SPb) = £ 0.9342
11/27: 1 Troy Oz. Pt (SPb: refining 'cost') ~ £ 0.3114 - 0.4827
11/1827: 1 Troy Oz. Pt (SPb, sponge) = £ 1.2456
11/1827: 1 Troy Oz. Pt (SPb: semi-mfg) = £ 1.5570
Citation: Philosophical transactions of the Royal Society of London, Vol. 120 Royal Society (Great Britain)
In Fall 1827, European Platinum prices were reduced.
Count Cancrin's reference to ingot may not refer to pure refined metal, but the 1826/7 Paris price ratio for ore/ingot corresponds closely. From an unknown source comes a London price, equivalent to the Paris Price cited by him for in August, 1827.
c.Oct.1827: 1 Troy Oz. Platinum (imported ingot, London) = £ 1.00 (USD$ 4.94)
I Kilogram off-market Russian platina cost ~ £ 15.52, 1 kg Mint platina cost £ 30., 1 kg Mint Sponge cost £ 40., 1 kg Mint Platinum cost £ 50.
July, 1827:
7/27: 1 Troy Ounce platina (SPb: 71.37% pure) ~ £ 0.667
11/27: 1 Troy Ounce platina (SPb) = £ 0.9342
11/27: 1 Troy Oz. Pt (SPb: refining 'cost') ~ £ 0.3114 - 0.4827
11/1827: 1 Troy Oz. Pt (SPb, sponge) = £ 1.2456
11/1827: 1 Troy Oz. Pt (SPb: semi-mfg) = £ 1.5570
Citation: Philosophical transactions of the Royal Society of London, Vol. 120 Royal Society (Great Britain)
In Fall 1827, European Platinum prices were reduced.
Count Cancrin's reference to ingot may not refer to pure refined metal, but the 1826/7 Paris price ratio for ore/ingot corresponds closely. From an unknown source comes a London price, equivalent to the Paris Price cited by him for in August, 1827.
c.Oct.1827: 1 Troy Oz. Platinum (imported ingot, London) = £ 1.00 (USD$ 4.94)
This contradicts, however insignificant profit, trade prices. After just received news from London, an ounce of platinum can be sold in bars Troy to twenty shillings, which account for about 24 rubles paper. Thereafter, the platinum would come to 3 Roubles and 29 Kopecks (Paper Roubles) per Solotnik. The Solotnik of silver is worth 23.703 cpm paper, the proportion of platinum to silver would be so in this case as 3,73:1. It follows that the ratio of 3 .25: 1 is too low.
London-St. Petersbourg commercial intelligence was typically ~35 days. News of an extraordinary event traveled the distance in 20 days. Czar Alexander died 1 December 1825 in Taganrog on the Azov; the courier reached St. Petersbourg 9 December (reported 10 December) and the Czar's death was announced in London on 1 January 1826.
London-St. Petersbourg commercial intelligence was typically ~35 days. News of an extraordinary event traveled the distance in 20 days. Czar Alexander died 1 December 1825 in Taganrog on the Azov; the courier reached St. Petersbourg 9 December (reported 10 December) and the Czar's death was announced in London on 1 January 1826.
Citation: Im Ural und Altai: Briefwechsel zwischen Alexander von Humboldt und Graf .. A. von Humboldt, Egor F. Kankrin (1869) p.26
Quiring's error is likely Cochrane's COLOMBIAN and Russian source prices!
c.1827: 1 Troy Oz. platina (Lond.:Choco, 85%, whols.) = £ 0.3101 (USD$ 1.53)
c.1827: 1 Troy Oz. platina (Lond.:Choco, 85%, whols.) = £ 0.3101 (USD$ 1.53)
c.1827: 1 Troy Oz. platina (Lond.: Ural, 75%, whols.) = £ 0.2281 (USD$ 1.13)
Citation: Die metallischen rohstoffe, ihre lagerungsverhältniss und ihre wirtschaftliche bedeutung..., Vol. 16 (1962)
Heinrich Quiring?
"In London kostete ein kg columbianisches Rohplatin 1826 bis 1827 200 Schilling. Es wurde höher bewertet als das .."Denn 1826/27 notierte in London russisches Rohplatin 146,65 s; columbianisches Rohplatin 199,4 s, Reinplatin 429,7 s je kg. Paris nahm eine Zwischenstellung ein (Rohplatin 200 Frcs, Reinplatin 690 Frcs je kg)..."
1827: 1 Troy Oz. platina (Lond.:Colombian import) = £ 0.31 (USD$ 1.53)
Platina imports (UK) for 1827: £ 5. for every £ 100. value, totalling £ 512. If Colombian government platina (886.68 Troy Ounces) exported in 1827 constituted all British imports, then:
1827: 1 Troy Oz. platina (Lond.:Colombian import) ~ £ 0.5744 (USD$ 2.84)
It seems far more likely that other Colombian export plus Russian platina arrived on the London market, however.
It seems far more likely that other Colombian export plus Russian platina arrived on the London market, however.
1827:
1827: 1 Troy Ounce Platinum (refined, semi-mfg) = Fr 27.96
(=£1.06; without duties, insurance, import, profit, etc.)
1827: 1 Troy Ounce Platinum (estimated coined) = USD$ 7.15
c.1829: 1 Troy Ounce Platinum (estimated to Silver) = USD$ 5.17 - 6.47
c.1829:
Citation: A manual of chemistry: containing the principal facts of the ..., Vol. 2. William Thomas Brande (1830) p.215
Citation: Knowledge for the people: or, the plain why and because. John Timbs (1832) p.198
1830: An annual English register of recent notable events reported Russian 'news' from 1827 ... three years later!
December 1828:
Citation: Philosophical magazine: a journal of theoretical, experimental ... Vol. 4, No. 24 Dec. 1828 p.457
Citation: Arcana of science and art: or, An annual register of useful inventions ; John Timbs (1830) p. 67
Citation: The Encyclopedia Americana: a library of universal knowledge (1919) p.230
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