USA, 1910

1910: 1 Troy Ounce Platinum (NYC: Avg Ingot) = USD$ 32.70
1910: 1 Troy Ounce Platinum (St.Pb ingot) = USD$ 26.96

1910: Russian Ingot at St. Petersburg and New York, for comparison.



See George F. Kunz' "Platinum" for detailed review of New York Monthly Prices, 1910 - 1921

Citation: The Mineral Industry, Vol. 29 p.547



9/1910: 1 Troy Oz Platinum (NYC: Avg Ingot) = USD$ 33.63

 1910: NY Monthly Mkt Prices for Refined Ingot



 
1910: 1 Troy Oz Palladium (German Mkt) = ℳ 119.75 (USD$ 28.50)
1910: 1 Troy Oz Rhodium (German Mkt) = ℳ 497.66 (USD$ 118.44) 
1910: 1 Troy Oz Iridium (German Mkt) = ℳ 152.41 (USD$ 36.27) 
1910: 1 Troy Oz Osmium (German Mkt) = ℳ 118.19 (USD$ 28.13)
1910: 1 Troy Oz Ruthenium (German Mkt) = ℳ 245.72 (USD$ 58.48)

1910: 1 Troy Ounce Palladium (NYC: Import) = USD$ 32.75
1910: 1 Troy Ounce Rhodium (NYC: Import) = USD$ 60.50
1910: 1 Troy Ounce Iridium (NYC: Import) = USD$ 46.33
1910: 1 Troy Ounce Osmium (NYC: Import) = USD$ 33.70

1910: 1 Troy Ounce Rhodium (NYC: Retail) = USD$ 155.52

Osmium & other PGMs:

As late at 1910, most Platinumware was not pure, and pure Platinum articles were 30% more expensive in the USA.