France, 1859: Paris Catalogue Prices (Breton)

Ingot and scrap appears to represent the same Paris 'market price' by 1857/8, where the technology to re-melt and the inconvenience of re-working impure Russian ingot equalized cost.  The US Platinum price is nearly 100% higher than the Paris Price.

1857: 1 Troy Oz. Platinum (scrap) = Fr 23.33 (USD$ 4.54)

1858: 1 Ozt. Platinum (scrap) = Fr 18.66 (USD$ 3.63)

1858: 1 Ozt. Platinum (scrap) = USD $ 8.
1858: 1 Ozt. Platinum (importer's price) = USD $ 7.50

1858: 1 Ozt. Platinum ( ingot, mkt.) = Fr 18.66 (USD$ 3.63) 

1859: 1 Ozt. Platinum (ingot, mkt.) = Fr 15.55 (USD$ 3.03) 
 

1858: 1 Ozt. Platinum (Ru ingot, whols.) = Fr 18.66 (USD$ 3.63) 

1859: 1 Ozt. Platinum (Ru ingot, whols.) = Fr 15.55 (USD$ 3.03) 

1859: 1 Ozt. Platinum (mfg, retail)  = Fr  31.10 - 38.88 (USD$ 5.98 - 7.47)

  
Citation: Nouveau code du propriétaire, du négociant et de l'industriel" by M. Pasquis
avocat. Bruxelles, Ch. Vanderauwera, 25, Montagne aux Herbes-Potagères (1860) p.168

1857: 1 Troy Oz. Platinum (scrap) = Fr 23.33 (USD$ 4.54)

1858: 1 Troy Oz. Platinum (scrap) = Fr 18.66 (USD$ 3.63)

c.1857/8
Citation: L' éclairage au gaz à l'eau à Narbonne et l'éclairage au gaz Leprince ...; B. Verver (1858) p.27


 
Despite any decline in wholesale or global prices, from 1859 - 1866, retail platinum in Paris apparently rose 50%, with increasing demand or inflation.  

1859: 1 Troy Oz. Platinum (mfg, retail)  = Fr  31.10 - 38.88 (USD$ 5.98 - 7.47)

1866/7: 1 Troy Oz. Platinum (mfg, retail)  = Fr 46.65 - 62.20 (USD$ 9.14 - 12.18)

Citation: Catalogue et prix des instruments de physique, de chimie, d'optique, de ... Breton (Hermanos) 1859, pp.

J. Molteni & Cie. Paris: "Platinum objects also pay at Fr. 1.25 per Gramme; however, the manufacture of each costs differently and varies according to the difference between the pieces." Platinum Fine Wire was 2x the Price for Fine Silver Wire; 3.14x the Base Intrinsic for Wares. The Goldware Base Price was 2.88x Platinum Base.

1859: 1 Ozt. Silver (Semi-Mfg, Ret.)  = Fr 10.89 (USD$ 2.09)
1859: 1 Ozt. Platinum (Semi-Mfg, Ret.)  = Fr 34.21 (USD$ 6.58)
1859: 1 Ozt. Gold (Semi-Mfg, Ret.)  = Fr 116.64 (USD$ 22.43)
 
1859: 1 Ozt. Platinum (Mfg, Base Ret.)  = Fr 38.88 (USD$ 7.48)
1859: 1 Ozt. Platinum (Semi-Mfg, Ret.)  = Fr 40.43 (USD$ 7.78)
1859: 1 Ozt. Platinum (Semi-Mfg, Ret.)  = Fr 46.66 (USD$ 8.97)  

1859: 1 Ozt. Platinum (Fine Wire, Ret.)  = Fr 46.66 (USD$ 8.97) 
1859: 1 Ozt. Silver (Fine Wire, Ret.)  = Fr 23.33 (USD$ 4.49)   

Citation: J. Molteni &Cie: Constructeurs de Machines et Instruments de Precision, CATALOGUE et PRIX COURANT (1859)





1859: 1 Ozt. platina (Colombia: Export?)  = Fr 20.22 - 21.15 (USD$ 3.89 - 4.07)

1857/8?: 
Citation: Dictionnaire universel théorique et pratique du commerce..., Vol. 2 (1860) p.1121


Paris Price, c. 1858: assuming the Pd price Fr. 3.75 per Gramme,

1859: 1 Troy Oz. Palladium (Refined, Retail)  ~Fr  116.64 ($ 22.43)