The official Colombian platina export was 290.6 Kgs; 58% went to the USA.
1907: 1 Troy Ounce Pt (Colombian ore, Spot, Est. 80%) = USD$ 18.80
1907: 1 Troy Oz. Pt (Colombian ore, intrinsic) = USD$ 23.50
Citation: The Jewelers' Circular, Vol. 81, Issue 2 p.89 (9/3/1920)
Platinum was estimated to be 9.84% of the Cartagena Gold export, there were perhaps ~907.4 Kgs (29,175 Ozt) Platinum exported from Colombia in 1907.
citation: Étude sur les mines d'or et d'argent de la Colombie. Vicente Restrepo (1908) p33
Until around 1907 nearly all Colombian platina was exported without duty.