UK 1848-1851: Approx. Ingot Price & Crucible Cost

Despite deflation (-16%) in UK retail prices between 1838 - 1852, the average price of Platinum manufactures rose ~ +25%.

With California & Australia gold-prospecting, additional demand for assay equipment may have supported these products; retail Platinum manufacture prices from NYC vendors were likewise stable.

c.1847?: 1 Troy Ounce Platinum (mfg, retail) = £ 1.60 - 1.90 (USD$ 7.79 - 9.25)
c.1848: 1 Troy Oz. Platinum (refined, mkt) = £0.93310 (USD$ 4.5241)

Citation: First outlines of inorganic chemistry (1850), p.243


c. June, 1852:


A crucible of the same dimensions 1.75" x 1.63" (1.5 oz. vol.) w/lid weighed 750 Troy Grains, or
1851: 1 Troy Oz.Platinum (manufactured, retail) = £ 1.56 (USD$ 7.66)

Citation: A manual of metallurgy, or practical treatise on the chemistry of the metals ;John Arthur Phillips (1852), p.613.

Reportedly as a result of oversupply from Cartegena, in 1850 the Price of Platina fell dramatically, and the Russian ingot price dropped accordingly.

1849: 1 Troy Oz. platina (@ St. Peterburg, semi-ref., whols.) = £ 1.11

c.1847/8?
When three Silver Roubles were £ 0.45, the 3-Rouble was nominally worth £0.44167 but intrinsically worth  £0.30, discounted by 33%.  At ~10 g. pure Pt,

c.1848: 1 Troy Oz. Platinum (refined, mkt) = £0.93310  (USD$ 4.5241)


Citation: The Banker's common-place book ;  Isaac Smith Homans (1849) p. 185