On Platina.: Russia, 1896

1896: 1 Troy Oz. platina (Ural Contract: 83% ore) = руб 10.63 (USD$ 5.47)
1896: 1 Troy Oz. Pt (Contract @ .999) = руб 12.81 (USD$ 6.59)

Citation: The Colliery Engineer, Vol. 30 (Feb. 1910) p.400

c.1896? where the Ural Spot (Ore, at purity) was $ 258.07/kg

c.1896?: 1 Ozt. platina (Ural : 83% ore) = USD$ 6.66 (12.9467 руб)
c.1896?: 1 Ozt. Pt (Ural : Ore, .999) = USD$ 8.03 (15.60 руб)

Ciation: Iron Age, Vol. 61 p. 1/20/1898 p.16

circa Oct. 1896? Fr. 1,300/Kg. = ~ руб Kr. 484.51; £ 51.54 (руб Kr. 480. - 486.25)
1896: 1 Troy Oz. platina (SPb: Mkt) = 15.07 руб (Fr 40.435; £ 1.60; USD$ 5.92

Probably, "руб Kr. 8,000/Poud":
1896: 1 Troy Oz. platina (SPb: 83%, Mkt) = 15.19 руб (USD$ 7.82)
1896: 1 Troy Oz. Pt (SPb: .999, Mkt) = 18.30 руб (USD$ 9.42)

Citation: Revue scientifique, Vol. 6 No. 24 p.766 (12/1896) p.766

1896: 1 Troy Oz. platina (Ural Contract: 83% ore) = 13.29 руб (USD$ 6.84)
1896: 1 Troy Oz. Pt (Contract @ .999) = 16.01 руб (USD$ 8.24)
1896: Russian Refiner's Cost @205 руб/Poud = 0.3893 руб (USD$ 0.20)
1896: 1 Troy Oz. Platinum (SPb: Ingot, Poud-Rate) = 16.403 руб (USD$ 8.44)

Citation: The Mineral Industry, Vol. 7 (1899) p.570

By 1896, the NY Platinum price was about double the St. Petersburg Price.

1895/6: 1 Troy Oz. Platinum (SPb, Spot) = 17.10 - 21. руб (USD$ 8.80 - 10.80)

1896: 1 Troy Oz. Platinum (Russian Ingot @ NYC) = USD$ 12.00

1896: 1 Troy Ounce Platinum (Paris: .999 Mkt) = Fr 56. (USD$ 10.95)

1896: 1 Troy Oz. Platinum (NYC: semi-mfg, whols.) = USD$ 15.55 - 23.33

1895/6: Greatest likelihood (forex, date, etc.)

circa December 1896? Fr. 1,474/Kg. = 549.43 руб

1896: 1 Troy Oz. platina (SPb: Mkt) = 17.09 руб (USD$ 8.79)
1896: 1 Troy Oz. Pt (SPb: Mkt) = 20.59 руб (USD$ 10.60)

Citation: La Russie industrielle: étude sur l'Éxposition de Nijni-Novgorod; Maurice Verstraete, p.293