August 19, 2014

UK, 1908


January, 1907: 1 Troy Oz. Platinum (Mkt) = £ 7. (USD$ )


Jan 1908:


Apr 1908:


Nov 1908:


Summer 1908: 1 Troy Ounce Platinum (Mkt) = £ 4.25

Citation: The Chemical world, Vol. 1 (Oct. 1912) p. 354



Philip Harris and Co., Ltd Catalogue with Grove's Battery





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