1788

1788: 1 Troy Oz. Silver (UK, .999 Mkt) = £0.2904 ; 1 Troy Oz. Silver (S$ .999) = £0.2941

1788 France/UK Exchange:

£ 1. = L.T. 22.7692?


Where the Paris Ell was 1.213 English Yards, and '24 Livres' (Louis d'Or) = £ 0.9286, so 
"33 L.T./Ell" = £ 1.306 ∴ 1 English Yard of 'Peignon' cost 27.205 L.T. (=£ 1.08) 
 
In 1802, the London Price was £ 1.575




1788: S$1. = £0.1750?
 

1789

France:
  
£ 1. = LT. 26.625





S$ 1. = P$ 2.50


1 Onza Gold = P$ 37.50



6 Oct 1789:


Double Louis d'or
Weight: 15.23 g. ; 13.72 g. Fine Gold




Weight: 15.29 g. ; 13.77 g. Fine Au





Weight: 15.29 g. ; 13.776 g. Fine Au, ~.915 Fine (if at Standard Weight)


22 16/32 karats is .9375 ???



c. 1840:
Weight: 15.228 g. ; 13.72 Fine Au

1787

c.1786


Spain: 

Peso Current: P$ 1 = £ 0.15; P$ 6.67 = £ 1.
S$ 1 = £ 0.2107 ; S$ 4.7458 = £ 1.

1920

USA:
NYC





Russia:

April, 1920



May, 1920

1918

USA:
NYC
 


mmmm

1917

USA:
NYC




mmmm

1916

USA:
NYC




mmmm