10/1883: 1 Troy Ounce Platinum (UK: Mfg, Retail) ~ £ 1.5381 ("Fr. 38.88")
1883: 1 Troy Oz. Pt (London, bulk) ~ £ 1.55 (USD$ 7.52)
Citation: The Electrical Engineer, Vol. 15, No. 254, 3/15/1893 p.268
1883: 1 Troy Oz. Platinum (Semi-Mfg, Ret.) = £ 1.80 (USD$ 8.73)
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