USA, 1928

1928: 1 Troy Ounce platina (Colombian ore) = USD$ 67.41
1928: 1 Troy Oz. PGMs (Colombian ore) = USD$ 71.37
 
1928: 1 Troy Oz. Platinum (Russian ingot) = USD$ 74.99
1928: 1 Troy Oz. Platinum (German Sheet) = USD$ 80.09 
1928: 1 Troy Oz. Iridium (mkt) = USD$ 117.96 
1928: 1 Troy Oz. Osmium (mkt) = USD$ 65.51
1928: 1 Troy Oz. Palladium (mkt) = USD$ 60.60
1928: 1 Troy Oz. Rhodium(mkt) = USD$ 53.13
 


Citation: Foreign Commerce and Navigation of the USA 1928. Bureau of the Census (1929) p.279

Colombia, 1928

In 1928, Colombia produced the recorded maximum 61,985 ozt (1,928 kgs) of platina.  The USA imported 52,120 ozt (1,621 kgs) of Colombian platina, 84% of the total yield.

1928: 1 Troy Ounce platina (Colombian ore) = USD$ 67.41
1928: 1 Troy Oz. PGMs (Colombian ore) = USD$ 71.37