UK, 1860

1860: 1 Troy Oz. Platinum (Intrinsic: US Coin) ~ £ 1.556 (USD$ 7.66)
1860: 1 Troy Oz. Platinum (Wire: Trade) ~ £ 2.47 (USD$ 12.)


1860: 1 Troy Ounce Platinum (Mkt: Intrinsic) = £ 1.35 (USD$ 6.55)
1860: 1 Troy Oz. Platinum (Semi-Mfg: Retail) = £ 1.60 (USD$ 7.76) 
1860/1: 1 Troy Oz. Platinum (Wire: Retail) = £ 1.50 (USD$ 7.28) 

October 1860: Wholesale, bulk Pt price referencing contemporary US counterfeits.

Citation : Mechanics Magazine; John I Knight, Henry Lacey (1860) p.363



April 1860: Retail Pt price

Citation : The Chemical news, Vol. 1-2 (1860) p.216



1860/1: 1 Troy Ounce Platinum (wholesale, wire) = £ 1.50 (USD$ 7.28)

1860- 1863: Military School expenditure

Citation : Accounts and papers of the House of Commons, Vol. 35, 4/2-29/7/1864, p.134



1860?: 1 Troy Oz. Platinum (hypothetical retail?) = £ 1.845 (USD$ 8.95) 
   
An English arithmetic from 1861.