USA, 1891: Metals Compared, w/ Platinoid Metal Prices

1891: 1 Troy Ounce Platinum (Scrap, trade exchange) = $ 14.00

October, 1891:


According to The Mineral Industry (1895), p.677/8:

1891: 1 Troy Ounce Platinum (Mfg.) = $ 12.25
1891: 1 Troy Oz. Platinum (Semi-Mfg & Ore,Ret.) = $ 13.73

1891: 1 Troy Oz. Platinum (Scrap, Export) = $ 9.20

1891: 1 Troy Oz. platina (Spot: 70% Ore) = $ 5.50
1891: 1 Troy Oz. Pt (Spot: .999 Fine) = $ 7.86   
 
c.1891:



Late 1891: 1 Troy Oz. Platinum (Semi-Mfg) = $ 11.52


Citation: Medical Record, Vol. 41 (6/11/1892) p.676


c. 1891??
Citation: Encyclopédie chimique... Edmond Frémy (1892) p.262/3




1891:

1891: 1 Troy Oz. Iridium  = $ 7. 
1891: 1 Troy Oz. Osmium = $  65.
1891: 1 Troy Oz. Platinum= $ 9. 
1891: 1 Troy Oz. Palladium = $  35.
1891: 1 Troy Oz. Rhodium  = $ 155.50
1891: 1 Troy Oz. Ruthenium = $  171.

c.1891: