Americas
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Following their independence from Spain, all former territories adopted LMU coinage — some for a limited time. Only Venezuela and the Danish West Indies (today’s U.S. Virgin Islands) adopted the LMU standard directly. The other countries all match at a 1 to 5 ratio.
Several countries listed here could be better included in the colonial page (Danish West Indies, Puerto Rico).
Similarly, the United States adopted the Napoleonic standard in 1873 for its subsidiary silver coinage (excluding gold and the one dollar coin) until silver coinage was debased and ultimately removed. The timing was unusual because by this time France had adopted the LMU standard for subsidary coinage, which debased the fineness from 0.9 under the Napoleonic standard to 0.835.
Coinage by Country
Mintage years listed, followed by the number of gold and silver coins
Argentina
1881-1883
(2 gold; 4 silver)
Bolivia
1865-1893
(8 silver)
Brazil
1868-1913
(9 silver)
Chile
1851-1927
(9 silver)
Colombia
1857-1942
(4 gold, 17 silver)
Costa Rica
1851-1914
(3 silver)
Cuba
1915-1949
(2 silver)
Danish West Indies (Danish Colony)
1904-1907
(2 gold, 4 silver)
Dominican Republic
1937-1961
(3 silver)
Ecuador
1846-1916
(4 silver)
El Salvador
1892-1914
(4 silver)
Guatemala
1853-1897
(5 gold, 6 silver)
Haiti
1881-1895
(3 silver)
Honduras
1879-1914
(5 silver)
Paraguay
1889
(1 silver)
Nicaragua
1889-1912
(3 silver)
Panama
1905-1961
(9 silver)
Peru
1858-1917
(3 gold, 20 silver)
Puerto Rico (Spanish Colony)
1895-1896
(5 silver)
add Hawaii##?
Uruguay
1877-1917
(5 silver)
United States
1873-1964
(10 silver)
Venezuela
1876-1965
(4 gold, 21 silver)