UK, 1909: Price-Hike for Australian Ore

1909: 1 Troy Ounce platina (Australian Ore, intrinsic) = £ 2.875 (USD$ 14.00)
1909: 1 Ozt. platina (Australian Ore, intrinsic) = £ 3.75 (USD$ 18.27)
1909: 1 Ozt. Platinum ~ £ 4.3545 (USD$ 21.21)
1909: 1 Troy Ounce of Platinum = USD$ 24.87

Citation: Treatise on general and industrial inorganic chemistry, By Ettore Molinari (1920) p.850




See Official Year Book of the Commonwealth of Australia No. 4 - 1911 ; Commonwealth Bureau of Census and Statistics.

"In September 1909, the price paid locally {Fifield/Parkes, NSW} for the Platinum was increased from £ 2 17s. 6d. to £ 3 15s." 75-90% purity

 

1920s Assay?

Citation: Geological Survey Professional Paper, Vols. 630-631


1909: 1 Troy Oz. Rhodium = £ 20.22 (USD$ 98.45)

Rhodium was 13 shillings per gram in 1909.