France, 1811: Oversupply w/ Price Decline Begins

1809: 1 Troy Ounce Platinum (Producer's Price)  = £ 0.80  (Fr 13.73)
1811: 1 Troy Oz. Platinum (refined, wholesale)  = £ 0.60  (Fr 10.3)

1811: 1 Troy Oz. Platinum (Mfg, retail) = Fr 36.57 (£ 2.13)

1811: 1 Troy Oz. Platinum (Scrap, Bid) = Fr 15.24 (£ 0.888)

1811: 1 Troy Oz. Platinum (ore, retail?) = Fr 12.19 (£ 0.7104)

c.1811: 1 Troy Oz. Platinum (pure, retail) = Fr 30.48 (£ 1.776)

1812: Janety of Paris produced a 22-litre Platinum still weighing 2.746 kg and another 16-litre Platinum still weighing 1.758 kg









Citation: Donald McDonald 'The Development of the Platinum Industry in Continental Europe' 
"Born in the village of Tence south of St. Etienne, {Pierre Augustine?} Cuoq served in the French Revolutionary Army on the Rhine and then in Napoleon’s Italian campaign. After the peace of Campo Formio he returned to civilian life in local administration and then in 1801 as a lawyer in Lyons where he met his future partner Couturier with whom he joined forces in a merchanting business in 1807. Cuoq travelled widely in the course of his commercial activities, visiting Germany, the Near East, Italy and above all Spain where he spent several periods of time. 

It was on one of these last visits that he negotiated the purchase of about 1,000 kilograms of the native platinum that had earlier been imported from New Granada by the Spanish authorities and for which they now had neither a method of refining or any foreseeable use."

Citation: Le Moniteur judiciaire de Lyon: organe des tribunaux et des annonces légales No. 7 (23/1/1813)



Platinum chains manufactured without solder:


c. 1830, about period prior to 1817