1786

Lima PERU:

Exported Spanish Goods were 28.43% higher at Lima;
Lima Wholesale was 12% higher in Europe; 
Buenaventura Factor higher; unknown.





France: 

From Eckfeldt's Manual of Gold and Silver Coins of All Nations (1842), taking the Spanish Piastre Ag Coin-Weight was 0.8583 Ozt. (~26.697 g , 412 Grains; .900) and the French Crown Ag Coin-Weight was 0.8583 Ozt. (~28.77 g, 444 Grains; .912), so: 

S$ 1. = L.T. 5.4943 ; S$ 0.1820 ~ L.T. 1. ; 1 Ozt. Spanish Ag Coin (Piastre) = L.T. 6.4011 

American State Papers of 1827 (ASSAYS OF FOREIGN COINS. Communicated to the Senate January 17, 1827) suggest the French Crown Ag Coin-Weight was 0.92917 Ozt. (~28.9 g, 446 Grains; .912) ∴ S$ 1. = L.T. 5.5095 ; S$ 0.1815 ~ L.T. 1.

The c.1785 "Propositions respecting the coinage of gold, silver, and copper." suggest the French Crown Ag Coin-Weight was ~0.9423 Ozt. (~29.31 g, 452 Grains; .912) ∴  
S$ 1. = L.T. 5.4327 ; S$ 0.1841 ~ L.T. 1.

c.1782 Robert Morris' "Diplomatic Correspondence" suggests the French Crown Ag Coin-Weight was ~0.9468 Ozt. (~29.45 g, 454.5 Grains; .912) ∴  
S$ 1. = L.T. 5.40 ; S$ 0.1852 ~ L.T. 1.

Where 1 Paris Marc Ag = 245.1907 Grams or 7.883 Ozt. @ L.T. 49.45,   
so: 1 Ozt. Spanish Ag Coin (Piastre) = L.T. 6.2729 

Any Discount, likely reflecting Circulated Coinage.



January, 1786:


March, 1786:


May, 1786:


June, 1786:


September, 1786: 

 
October, 1786:
 

December, 1786: