France, 1801

1793: 1 Troy Oz. Platinum (Paris First Base Cost) = L.T. 45.53 (S$ 11.83)

Fall 1795 - Fall 1801: 1 Troy Oz. Pt (Mfg Cost, Estimate) = Fr. 15.2361 / 15.238

Fall 1795 - Fall 1801: 1 Troy Oz. Pt (Mfg: Actual Cost) = Fr. 31.102
 
The total weight of the final delivered Platinum product (4 Meters, 4 Kilograms) should have been ~416.603 Ozt (~12.96 Kgs) ; the weight of Kilogram known, the Meter is presumed 72 Ozt. 

Jannetti was actually paid Fr. 12,922.10 for the eight (8) items.

1.The first Meter & Kilogram required 136.846 Ozt Platinum (Assume: for the Metre ~92.25 Ozt, for the Kilogram 44.6 Ozt) (~28.13% wastage on the Meter; ~38.72% wastage on Kg.)
2. Second Meter required 90.08 Ozt (~25.11% wastage on 2nd Meter)
3. The first Meter was reworked, + 8.861 Ozt (~40.43% wastage on 1st Meter
4. Second Kilogram required ~36.92 Ozt (~14.83% wastage)
5. Third Kilogram required ~37.90 Ozt (~17.89% wastage)
6. Third Meter required 85.406 Ozt (~18.62% wastage)
7. A Kilogram was reworked, ~44.303 Ozt (~37.8% wastage)
8. Fourth Meter required 80.85 Ozt (~12.3% wastage)

Citation: Annales de chimie et de physique, 1882
 







c.1799: by fusing with metallic arsenic, Jeannetty's Platinum was probably ~1% metallic Arsenic, 7.2% Iridium and 91.8% Platinum or 1.10% As, 13.8% Ir and 85.10% Pt

 



1801: 1 Troy Oz. platina (Estimated: Cartagena Mkt) ~ Fr. 2.37
1801: 1 Troy Oz. platina (Estimated: Jamaica Mkt, 25% higher) ~ Fr. 2.95