France, 1831: Paris Apothecary Prices (in Nuremburg newspaper)

1831: 1 Troy Ounce Chlor-platinates (Salt?) = Fr 24.38
1831: 1 Troy Oz. Platinum (mfg, in needles or Leaf) = Fr 28.44 (USD$ 5.46)
1831: 1 Troy Oz. Platinum (mfg, "vessels") = Fr 29.86 (USD$ 5.73)

1831: 1 Troy Oz. Platinum (mfg, French tariffed rate) = Fr 93.43 (USD$ 17.92)

November, 1831:
Citation: Allgemeine Handlungs-Zeitung: mit den neuesten Erfindungen..., Vol. 38 (2 December, 1831) p.614





Nuremburg forex, for the same period (November, 1831):


Tariffed Rate for Platinum:



The Platinum Rouble was reportedly not circulating in 1831.