Germany, 1839

In this important summary, Breant's factory is producing platinum apparatus at the rate of Fr 26. - 30. "per Unze" (2 Loth. = 0.9398 Troy Oz., 29.23 g)

1839: 1 Troy Ounce Platinum (Paris: Mfg, Bulk) = Fr 26.42 
1839: 1 Ozt. Platinum (Paris: Mfg, Retail) = Fr 30.48
1839: 1 Ozt. Platinum = Thlr 7.45 - 8.51 (USD$ 5.21 - 5.95)

Citation: Allgemeines Organ für Handel und Gewerbe und damit verwandte ..., Vol. 6 (1840)

Possibly dated materials, but no later than 1842.


c.1839: 1 Ozt. Platinum (Coin Rate, intrinsic) ~ Thl 10.00 (USD$ 8.05)

c.1839?:

Citation: Die Handlungswissenschaft für Handlungslehrlinge und Handlungsdiener ...Fr Bohn (1844) p. 101
 

Where the Platinum 3-Rouble (10.353 g. or 2.427083 золотник) the hypothetical rate converts (1828-44) as follows : 1-Rouble = Thlr. 1.076923,

c.1830's: 1 Ozt. Platinum (Coin Rate, intrinsic) = Thl 9.7061 (USD$ 6.74)
c.1830's: 1 Ozt. Platinum (Coin Rate, intrinsic) = руб. 9.01 (USD$ 

   

1839 Exchange Rate.