UK, 1910

Germany 1910

1910: 1 Troy Ounce of platina = £ 6.97 (USD$ 33.86)
1910: 1 Troy Ounce of Platinum = USD$ 33.70
1910: 1 Troy Oz. Chlor-Platinate Solution = £ 1.3719 (USD$ 6.66)

If 1 Troy Oz of Platinum solution has not more than 94 grains of pure Platinum, where 1 lb. avd. Solution has less than ~2.87 ozt pure Pt. 

Citation: Platers' Guide: With which is Combined Brass World, Vol. 7 (Dec. 1910)


1910: 1 Troy Ounce of Iridium (Source, bulk) = £ 9.95 (USD$ 48.37)
1910: 1 Troy Ounce of Rhodium (whols.) = £ 18.66 (USD$ 90.70)

Citation: Treatise on general and industrial inorganic chemistry; Ettore Molinari (1920) p.850

UK, 1799 - 1802: Silver Bullion Price

Early 1802:

Citation: Modern Geography: A Description of the Empires, Kingdoms, States ..., Vol. 1  John Pinkerton, Benjamin Smith Barton


Citation: A history of epidemics in Britain ... Charles Creighton (1894)








October, 1799:

Citation: THE PARLIAMENTARY REGISTER; OR, HISTORY OF THE PROCEEDINGS AND DEBATES OF The House of Lords & Commons, 1803, p.52








1811:


1799-1801, English Wheat Price doubled

UK, 1910 -1924: Osmium in Tasmania

1910- 1924: Iridosmine (Osmium-Iridium) in Tasmania, Australia

Assay, c.1913:

1912:
 


June 1910: 1 Troy Oz. Osmiridium (Tasmania) = £ 4.417

March-June, 1910:



See also: Official Year Book of the Commonwealth of Australia, Issue 27; Issue 1934 p.451

1910: 1 Troy Oz. Osmiridium (Tasmania) = £ 4.33

1911: 1 Troy Oz. Osmiridium (Tasmania) = £ 4.384
1911: 1 Troy Oz. Osmiridium (High, Mkt) = £ 7.50

1912: 1 Troy Oz. Osmiridium (Mkt) = £ 7.371

1913: 1 Troy Oz. Osmiridium (Mkt) = £ 9.53
1914: 1 Troy Oz. Osmiridium (Tasmania) = £ 5.675
1914: 1 Troy Oz. Osmiridium (Mkt) = £ 9.89
1915: 1 Troy Oz. Osmiridium (Tasmania) = £ 6.40

1916: 1 Troy Oz. Osmiridium (Tasmania) = £ 8.55
1917: 1 Troy Oz. Osmiridium (Tasmania) = £ 11.
1917: 1 Troy Oz. Osmiridium (Mkt) = £ 14.75
1917: 1 Troy Oz. Osmiridium (Mkt) = £ 18.50
1917: 1 Troy Oz. Osmiridium (Best Quality) = £ 22.50

1918: 1 Troy Oz. Osmiridium (Tasmania) = £ 7.90
1918: 1 Troy Oz. Osmiridium (Local High) = £ 14. - 15.
1918: 1 Troy Oz. Osmiridium (Mkt or avg?) = £ 27.90
1918: 1 Troy Oz. Osmiridium (Local High) = £ 37.25

1918: 1 Troy Oz. Osmiridium (Mkt) = £ 40.
1919: 1 Troy Oz. Osmiridium (Local High) = £ 33.

UK (Australia), 1920: Tasmanian Osmiridium

February, 1920: 1 Troy Oz. Osmiridium (Tasmania) ~ £ 40. (USD$ )
March, 1920: 1 Troy Oz. Osmiridium (Tasmania) = £ 42.50 (USD$ 155.55)
December, 1920: 1 Troy Oz. Osmiridium (Tasmania) ~ £ 35. (USD$ )
Dec. Low, 1920: 1 Troy Oz. Osmiridium (Tasmania) ~ £ 30. (USD$ )
 
  March, 1920: Osmiridium Price Price in Tasmania, Australia?









1918-1919: A 'significant' export of Osmiridium from Papua (reported in Pacific Ports Manual, 7th Ed. 1921) was presumably declared in avoirdupois ounces (hence, 5.5 lbs. avd or 80.66 Troy Ounces.) A packet of 2.5 lbs. avd is 36.46 Troy Ounces, whereby a single opportune discovery (in the rainy season, April 1919?) represented nearly half the entire Papuan export for that year.



c.January 1920: 1 Troy Oz. Osmiridium (London) ~ £ 32.91 (USD$ 156.66)



Anecdotal, by August 1921:


1920: USGS market prices suggest January 1920 price for the Osmiridium quotation; US imports of osmiridium were nearly four times higher in 1920.

Russia, 1917

DSQ



April, 1917: 1 Troy Ounce

3/1917: 1 Troy Ounce platina (Ural, source, 83%) ~ USD$ 110.00 
3/1917: 1 Troy Oz. Platinum (Ural, intrinsic) = USD$ 132.53


Background and summary of Russian Platina Price events, circa 1917:



Purity of Russian platina, 1917:
 

UK, 1918

May 1918: 1 Troy Ounce Platinum (pure ingot, London mkt) = £ 20. (USD$ )

Citation: Annual report of the Director of the Mint (Fiscal Year 1918); United States Bureau of the Mint (1918) p.159



1918: Estimated global platina produced


1918: 1 Troy Ounce Silver = £ 0.214 (USD$ 1.02)

Monthly Silver in London & New York:


The value of the British Pound against the US Dollar started deteriorating in November, 1918.

Citation: Economic World, Vol. 21 (Sept. 1921) ; Arthur Richmond Marsh p.19



January - April 1920




February 1920:


December 1921:

UK, 1916: Platinum & Palladium

-1916: 1 Troy Ounce Platinum (UK Govt: Buy) = £ 10. (USD$ 47.6 - 49.3)

-1916: 1 Troy Ounce Platinum (UK Govt: Sell) = £ 11. (USD$ 52.36 - 54.23)

Citation: Mineral resources of the United States, 1917 (1921) Part 1 p.17

November, 1916: 1 Troy Ounce Platinum (UK Govt) = £ 10.50 (USD$ 50.)December, 1916: 1 Troy Ounce Platinum (UK Govt) = £ 14.50 (USD$ 69.2)

Citation: The Journal of Industrial and Engineering Chemistry, Vol. 10 American Chemical Society


1916: 1 Troy Ounce Platinum = £ 10. - 14.50

Citation: The Platinum Metals ; Arthur Douglas Lumb (1921) p.16



Wartime price controls in effect.


c.1914: 1 Troy Ounce Palladium = £ 6.22 (USD$ 30.66)

1916: 1 Troy Ounce Palladium = £ 24.88 (USD$ 118.68)
1917: 1 Troy Ounce Palladium = £ 26.44 (USD$ 125.83)