1850: 1 Troy Ounce Platinum (Ingot? Wholsale) = £ 1.60 (USD$ 7.79)
1850: 1 Troy Oz. Platinum (Pure, Retail) = £ 2.55 (USD$ 12.52) May 1851: 1 Troy Oz. Platinum (Semi-Mfg, Ret.) = £ 2. (USD$ 9.75)
Citation: Encyclopædia metropolitana; or, System of universal knowledge (1851) p.145
1851: 1 Troy Oz. Platinum (Semi-Mfg, Ret.) = £ 2.
(USD$ 9.75)
Citation: A Manual of Electro-Metallurgy: including Applications of the Art, James Napier (1851) p.
c.1851/2: Griffin's Platinum Capsule and Spatula, same prices as 1866.
From Griffin's Catalogue, 1877, a 1.5 dia. capsule with handle and spout weighs 125 Grains Troy ; in 1851, the cruder manufacture of a 1.5 dia. capsule (likely, hammered Foil) was ~ 66 Grains. These retail prices are extraordinarily high, but the advertisement was for greedy Gold-hunters and not prudent industrialists.
1851: 1 Troy Oz. Platinum (Mfg, Ret.) ~ £ 3.25 (USD$ 15.84)
In 1851, a 8" Sextant cost £ 10., -52.4% from the 1822 price; the Silver version gotten even cheaper, -57.7%.
1851: 1 Troy Oz. Platinum (Mfg, Ret.) ~ £ 7.20
1851: 1 Troy Oz. Platinum (Ingot? Whols.) ~ £ 1.60
1851: 1 Troy Oz. Standard Gold (Ingot? Whols.) ~ £ 3.
Citation: The Engineer and Machinist, No 27, 8/1851
In 1851, Quennessen exhibited a Platinum still of 118.294 litres, valued ~£ 800. If the approximate amount of Pt by weight per Litre = 4.8225 Troy Ounces, then the amount of Litres per Troy Ounce =0.2074 Litres (1858/9 Paris-manufactured still)
Consistent with the high US price, this boiler probably weighed 18 kgs (579 ozt) therefore:
1851: 1 Troy Ounce Platinum (mfg, still) = £ 1.43 (USD$ 7.00)
Platinum tipped pens were
Such news, though exaggerating the prevalence of Pt, may have depressed prices somewhat:
1851: 1 Lb. Colombian Balsam (Bulk) = £ 0.1750
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