1905: 1 Troy Oz. platina (Ural Spot, 82%) = £ 4.3875 (USD$ 21.364)
1905: 1 Troy Oz. platina (Ural Spot, at purity) = £ 5.3506 (USD$ 26.05)
June 1905: 1 Troy Ounce Platinum (bulk, mkt) = USD$ 20.50 (£ 4.21)
Citation: The Mineral Industry, Vol. 17, 1909 p.314
October 1905:
Where
Pistrucci's 1838 Coronation Medal in Gold was valued at £ 4.99/Ozt when
London Spot Gold was £ 4.244, the numismatic premium on an 1838
Pistrucci Medal was 17.52%.
It appears the same premium on an 1838 Pistrucci Platinum Medal was ~38.8%.
October 1905: 1 Troy Oz. Platinum (Mkt) ~ £ 7.983 ()It appears the same premium on an 1838 Pistrucci Platinum Medal was ~38.8%.
October 1905: 1 Troy Oz. Platinum (Medal, Numismatic) ~ £ 11.
October 1905: Est. 33.9 g Platinum Medal (Numismatic) = £ 12.
1838 UK Coronation Proof:
Generic:
1905: Australian production
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