UK:
Spanish Dollar after 1772:
S$ 1. = 0.8675 Ozt, 0.8958333 Fine Ag; 0.77713542 Ozt Fine Ag
c.1804 Coin Assay:
Citation: The elements of commerce; or, A treatise on different calculations [&c.]; Christopher Dubost (1806)
London Exchange in Sept. 1804
Par, sending Cash:
US/UK 1804:
1804: 1 Troy Ounce Fine Silver, Spanish Dollars = £ 0.3242 - 0.3267
USA:
As stated in the Preface:
1804: 0.50 руб (Ag) = 157.5 English Troy Grains * 0.86667 Fine Ag = 136.5 Grains/ 8.845 g Fine Ag
where S$ 0.7361 = 1 руб (Ag) = £ 0.1844 - 0.2524
1804: 1 Troy Ounce Fine Silver, Coined Roubles = 1.75824 руб
Assayed in 1809?
France c. 1804:
April 1804
c.1805
Germany: 1 C. Rthlr = 1 Banco Mark, 2mo = Fr. 3.436 3mo = S$ 0.901 3mo
Russia:
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