Colombia, 1919

Assuming the 30% NYC Spot - 10%, averaging previous and current months' Spot,

January, 1919: 1 Troy Ounce platina (~80% Ore, Chocó Bid) ~ USD$ 21.04

Febrary, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 20.53

March, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 19.96

April, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 19.91

May, 1919: 1 Troy Oz. platina (~80% Ore,Chocó Bid) ~ USD$ 20.25

June, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 20.84

July, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 21.17

August, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 21.35

September, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 23.63

October, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 26.09

November, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 26.90

December, 1919: 1 Troy Oz. platina (~80% Ore, Chocó Bid) ~ USD$ 28.81

Citation: Colombia: a commercial and industrial handbook. United States Dept. of Commerce, Purl Lord Bell (1921) p.109

 

1919: 1 Troy Oz. platina (~80% Ore, US Custom) = USD$ 88.4286

1919: 1 Troy Oz. Pt (~80% Ore, .999) ~ USD$ 110.5357

1919: 1 Troy Oz. Platinum (Average NY Spot) ~ USD$ 114.60