USA, 1868

At 50% markup, the 1868 retail price for semi-manufactured Platinum on the East Coast, USA should have been only about $ 10.90/Ozt. (USD$ 15.25/Ozt.) 

It would appear that cash/currency prices were considerably higher, however.  In 1869, McAllister of Philadelphia charged USD$ 24./Ozt.; Chamberlain in Boston charged ~USD$ 18.61/Ozt. 

1867: 1 Troy Oz. Platinum (UK Bid: Scrap, Trade) = USD$ 6.74 (£ 1.00)

1867: 1 Ozt. Platinum (Paris: Mfg, Trade) = USD$ 9.18 (Fr 34.29) 
1867: 1 Ozt. Platinum (Paris: Mfg, Trade) = USD$ 9.71 (Fr 36.29)
1867: 1 Ozt. Platinum (Paris: Mfg, Retail) = USD$ 12.49 (Fr 46.66)
1867: 1 Ozt. Platinum (US Import: Paris Mfg) ~ USD$ 13.60 (Fr 50.81) 
1867: 1 Ozt. Platinum (USA: Paris Mfg, +25% Profit) ~ USD$ 17.
1867: 1 Ozt. Platinum (USA: Paris Mfg, +47% Profit) ~ USD$ 20.

1867: 1 Ozt. Platinum (UK: Semi-Mfg, Ret.) = USD$ 8.66 (£ 1.60)
1867: 1 Ozt. Platinum (USA, Ret. Import.+34% Profit) = USD$ 11.60 (£ 2.386)

1867: 1 Ozt. Platinum (UK: Ru Pt Scrap, Customs rate) = USD$ 7.57 (£ 1.10)
  

1868: 1 Troy Oz. Platinum (SPb-Paris:Ru Ingot, Bulk) = $4.50 (USD$ 6.30)
1868: 1 Ozt. Platinum (Paris: Mkt) = ~$ 6.075; USD$ 8.60 (Fr. 31.10)

c.1868?: 1 Ozt. Platinum (UK:Semi-Mfg, Trade-Ret.) = $ 7.26 ; USD$ 10.14 (£ 1.50)   

1868: 1 Ozt. Platinum (USA: UK Semi-Mfg, US Ret. +50) = $ 10.89 ; USD$ 15.25 
  
1868: 1 Ozt. Platinum (USA: UK Mfg, Imp. +40%) = $ 10.14 ; USD$ 14.20   
1868: 1 Ozt. Platinum (USA: Hypo. Mfg, US Ret.+50%) = $ 15. ; USD$ 21.


circa December 31, 1898:



Citation: The Mining American, Vol. 39, p.13


1868/9: 1 Ozt. Platinum (London Import:Semi-Mfg) = $ 6.52; USD$ 8.67 (£ 1.34)
1868/9: 1 Ozt. Platinum (+15% Cost Basis:Semi-Mfg) = $ 7.50; USD$ 10.61 
1868/9: 1 Ozt. Platinum (Merchant Importer: Semi-Mfg, Trade) = $ 7.75; USD$ 11. 

1869: 1 Ozt. Platinum (Phila.: Semi-Mfg, Trade-Ret.) = $18. in Gold (USD$ 24.)

In the USA 1867/9, Platinumware importers paid a 40% tariff. Where a 60-Gallon Platinum Still ($15k) included the 40% tariff, the actual cost was $9,000., consistent with earlier French prices. (Unknown if shipping/delivery cost more, if this was built to spec in France or UK, etc.) Logically, 60-Gallon Still should include 1,390 Ozt Platinum.

1865:  28.548 Kg, holding 39.625 Gallons, cost Fr. 30,588.4 ($5,940.)
1865:  43.227 Kg, holding 60 Gallons, cost Fr. 46,317. ($8,994.)

1868: 1 Ozt. Mfg Platinum (Imported: Bulk) = $10.7914 (USD$ 15.11)

1868: 1 Ozt. Mfg Platinum (Cost: Bulk, Net Duty) = $6.475 (USD$ 9.06)
 
1869: a platinum still which holds 60 gallons and cost the modest sum of $15,000.
1875: "a platinum still which holds 80 gallons and cost the modest sum of $20,000. The capacity of this machinery is fourteen thousand pounds of acid a day, though only eight thousand pounds are now to be produced which is about the average consumption in this city alone."




Grove's Battery: Platinum Foil, 1.25 Sq. In. (2.5 Sq. In. Surface)



US Imports: