UK, 1823

Paris Price in Sterling, 1823:


In 1823, Dr. Wollaston recorded Rhodium receipts of £ 10.


c.January, 1822: 1 Troy Oz. Platinum (Paris: Refined, retail) = £ 0.7138
June, 1822?: 1 Troy Oz. Platinum (Paris: Refined, retail) = £ 0.9373
August, 1822: 1 Troy Oz. Platinum (refined) = £ 1.2612
January-December, 1823: 1 Troy Oz. Platinum (refined) = £ 1.28 - £ 1.5039

Compare prices in the 1817 Accum Catalogue; in London, retail platina prices appear to have been stable 1808-21.  The Price of Platinum in Paris rose quickly in the Summer, 1822. 

Citation: An elementary introduction to the knowledge of mineralogy; William Philipps (1823)

  Given the period of his experimentation, Maceroni's price note probably situates to early 1822, well before the Russian platina discovery was confirmed (1824) and shortly after the  Colombian export ban went into effect (1821/2), still unknown to Europeans ; he mentions neither.  His cited Platinum price is too low for 1825/6; Paris Platinum prices were rising in the years before 1825, falling thereafter.  Maceroni's  qualification "even at the present price" suggests the recent price was considered exceedingly high.  

Also, any inference that refined ingots originated in Colombia is mistaken. Any ingot were likely ~85% pure, shaped residue of Gold processing.  Although its author was an expert, this particular historical table isn't sourced. It may show market platina prices in Great Britain or may otherwise present an erroneous forex estimation (Banco Roubles.)




Dubious price (unreferenced)

Estimation only:

c.1823/4 : 1 Troy Ounce Platinum (refined ingot) ~ £ 1.0 (USD$ 4.83)

c.1822: 1 Troy Oz. Platinum (proposed Colombian coin rate) ~ USD$ 4.

c.1826: 1 Troy Oz. Platinum (proposed coin & export rate) ~ USD$ 6.

c.1824 : 1 Troy Oz. platina (London Price, retail?) = £ 1.05 (USD$ 5.07)

Citation: The Naval and military magazine, Vol. 1 (1827), p.360

Citation: Memoirs of the life and adventures of Colonel Maceroni, Vol. 2, Francis Maceroni(1833) p.vii

 

 
Where the 1824 Vienna Exchange was £ 1. = Fl. C.M. 13.33, the equivalent 1 Ozt price for ingot in Paris was: 

 c.1819?: 1 Troy Oz. Platinum (Paris ingot) ~ £0.5498 
c. Early-1823: 1 Troy Oz. Platinum (Paris ingot) ~ £0.63