USA, 1886-8: Platinum Before the Death Spike

c.1885/6: 1 Troy Ounce Platinum (ore) = USD$ 6.

1887: 1 Troy Ounce Platinum (ore) = USD$ 7.50

1888: 1 Troy Ounce Platinum (ore) = USD$ 6.80

c1885/6: (much lower than the 1896 Price)

1887/8:

Citation: Mineral resources of the United States, Vol. 5 , US Bureau of Mines, Geological Survey (1888)