UK, 1870s/80s: Jamieson's Record

Presumable ore at the intrinsic rate, Dr. Alexander Jamieson's London price record for wholesale Platinum Sponge (1870-93) may be compared to this other records, (presumably, currency adjusted for fineness to Spot-Price for import crude ingot & Ural ore.)

Citation: The Electrical Engineer, Vol. 15, No. 254, 3/15/1893 p.268

1870: 1 Troy Oz. Pt (London, bulk) ~ £ 0.90 (USD$ 5.03)

1870: 1 Ozt. Platinum (semi-mfg, whols.) = £ 1.60 (USD$ 8.94)

1871: 1 Ozt. Pt (London, bulk) ~ £ 0.925 (USD$ 5.05)

1871: 1 Ozt. Platinum (semi-mfg. & mfg.) ~ £ 1.65 (USD$ 9.0)

1872: 1 Ozt. Pt (London, bulk) ~ £ 0.95 (USD$ 5.18)

1873: 1 Ozt. Pt (London, bulk) ~ £ 0.975 (USD$ 5.33)

1873: 1 Ozt. Platinum (semi-mfg, whols.) = £ 1.60 (USD$ 8.88)

1873: 1 Ozt. Platinum (dubious Low: mfg.) = £ 1.40 (USD$ 7.77)

1873: 1 Ozt. Platinum (Bid: Scrap) = £ 0.60 (USD$ 3.33)

1874: 1 Ozt. Pt (London, bulk) ~ £ 1.0 (USD$ 5.42)

1874: 1 Ozt. platina (Ural price) = £ 0.95 (USD$ 5.15)

1874: 1 Ozt. Platinum (ingot) = £ 1.26 (USD$ 6.82)

1874/5: 1 Ozt. Platinum (semi-mfg., retail) = £ 1.50 (USD$ 8.13)

1875: 1 Ozt. Pt (London, bulk) ~ £ 1.0 (USD$ 5.59)

1876: 1 Ozt. Pt (London, bulk) ~ £ 1.03 (USD$ 5.57)

1877: 1 Ozt. Pt (London, bulk) ~ £ 1.08 (USD$ 5.47)

1878: 1 Ozt. Pt (London, bulk) ~ £ 1.13 (USD$ 5.50)

1879: 1 Ozt. Pt (London, bulk) ~ £ 1.15 (USD$ 5.58)
1880: 1 Ozt. Pt (London, bulk) ~ £ 1.25 (USD$ 6.05)
1881: 1 Ozt. Pt (London, bulk) ~ £ 1.36 (USD$ 6.58)

1882: 1 Ozt. Pt (London, bulk) ~ £ 1.46 (USD$ 7.09)
1883: 1 Ozt. Pt (London, bulk) ~ £ 1.55 (USD$ 7.52)
1884: 1 Ozt. Pt (London, bulk) ~ £ 1.64 (USD$ 7.94)

1885: 1 Ozt. Pt (London, bulk) ~ £ 1.74 (USD$ 8.44)
1886: 1 Ozt. Pt (London, bulk) ~ £ 1.83 (USD$ 8.87)
1887: 1 Ozt. Pt (London, bulk) ~ £ 1.90 (USD$ 9.22)
1888: 1 Ozt. Pt (London, bulk) ~ £ 2.08 (USD$ 10.11)

1889: 1 Ozt. Pt (London, bulk) ~ £ 2.21 (USD$ 10.77)

1890: 1 Ozt. Pt (London, bulk) ~ £ 2.75 - 4.20 (USD$ 13.37 - 20.41)

1891: 1 Ozt. Pt (London, bulk) ~ £ 2.75 - 1.94 (USD$ 13.37 - 9.45) 
1892: 1 Ozt. Pt (London, bulk) ~ £ 1.75 - 2. (USD$ 8.50 - 9.74)

1893: 1 Ozt. Pt (London, bulk) ~ £ 1.50 - 1.95 (USD$ 7.29 - 9.50)

A. Jamieson, 10 Broad Street , Golden Square, London W. was a dentist in practice before 1878, manufacturing and patenting platinum alloys. His industrial purchases of platina (ore) would likely be bulk-rate at .999 Fine (Specific Gravity = 22) in London.

March, 1880:

Principal in The Dental Manufacturing Company, c. 1882

Where a 'Young Head' Full Sovereign of Queen Victoria weighted 7.98 g (7.315 g pure Gold) we may assume 7.3 g of pure Platinum valued at £ 0.5 intrinsic at the money-changers.

1888: 1 Troy Oz. Platinum (London, scrap) = £ 2.13 (USD$ 10.355)
c.1888:


1891:

1872-1897: London Silver Price


1872: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2714
1873: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2669
1874: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2627
1875: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2559
1876: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2387
1877: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2466
1878: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2368
1879: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2306
1880: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2354
1881: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2331
1882: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2334
1883: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2278
1884: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2283
1885: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2190
1886: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2044
1887: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2010
1888: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1931
1889: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1923
1890: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2151
1891: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.2030
1892: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1793
1893: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1605
1894: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1306
1895: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1346
1896: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1385
1897: 1 Troy Oz. Silver (Fine, Mint Rate.) = £ 0.1242