UK, 1884: Dental Platinum Scrap, etc.

1884: 1 Troy Oz. Platinum (SPb: Ural export, 82%) = £ 0.8719 (USD$ 4.2327)
1884: 1 Troy Oz. Pt (SPb: 82% Ore @ .999) = £ 1.0633 (USD$ 5.1618)
Early 1884: 1 Troy Oz. Platinum (Scrap, Bought) = £ 1.00 (USD$ 4.86) 
Mid-1884: 1 Troy Oz. Platinum (Scrap, Bought) = £ 1.10 (USD$ 5.34)
c.1884/5 (hypothetical?) : 1 Troy Oz. Platinum (85% ingot) = £1.58 (USD$ 7.68)
1884: 1 Troy Oz. platina (London: ore at .999) ~ £ 1.64 (USD$ 7.94)
1884: 1 Troy Oz. Platinum (corrected Bullman: J-M trade) = £1.53 (USD$ 7.40)
1884: 1 Troy Oz. Platinum (semi-mfg, whols./ret.) = £1.80 (USD$ 8.73)

Citation: Advert in The blowpipe in chemistry, mineralogy and geology: containing all known ... By William Alexander Ross (1884) p.187


Late February 1884:
Citation: English Mechanic and World of Science..., Vol.39 (3/21/84) p. vi


Early-Mid 1884:

Citation: THE DENTAL RECORD: A MONTHLY JOURNAL OF DENTAL SCIENCE, ART AND LITERATURE. THOMAS GADDES (1884) p. xiii


A Platinum crucible that cost 35s. (1 ozt = £ 1.75) c. 1880 was sold 2nd-hand for 25s.

July 1884: 1 Troy Oz. Platinum (2nd Class: Mfg) = £1.25 (USD$ 6.07)

Citation: English Mechanic and World of Science..., Vol.39 (7/25/84) p. 476


1884: 1 Troy Oz. platina (London: ore at .999) ~ £ 1.64 (USD$ 7.94)

Citation: The Electrical Engineer, Vol. 15, No. 254, 3/15/1893 p.268

Pt & Pd Alloys

Unknown "Pound"; if 1 Funt = 0.9114 English Troy Pound, then £ 14. = USD$ 68., or $61.94 per English Troy Pound. 

1884: 1 Troy Oz. Platinum (SPb: Ural export, 82%) = £ 0.8719 (USD$ 4.2327)
1884: 1 Troy Oz. Platinum (Russian, intrinsic) = £ 1.0633 (USD$ 5.1618)