UK, 1864

1863: 1 Troy Oz. Platinum (SPb: Russian ingot, whols.) < £ 1.10 ($ 5.36)
1863: 1 Ozt. platina (whols., Colombian ore) < £ 1.10 ($ 5.36)

1864: 1 Ozt. Platinum (Mfg., Whols.) = £ 1.60
1865: 1 Ozt. Platinum (Mfg., Ret.) = £ 2.00

The 4 oz. capsule weighed 900 grains, so £ 1.60 per Troy Ounce (presumably.)

Citation: Twelfth Report of the Science & Art Dept. of the Committee of Council on Education, Vol. 12 1865: p.259




c.1864: 1 Ozt. Platinum (UK, Mfg.) = £ 1.54 - 1.65 


 





Presumably, the tariffed platina price (Russian ingot, Colombian ore) ; actual spot-prices must have been lower.Citation : Ures̓ dictionary of arts, manufactures and mines, Vol. 3 (1867) p.443