Separate issue, priced "Prix Deux Francs" lower right.

A detailed chart of Buenos-Aires, when it was the independent capital of the United Provinces of the Rio de la Plata. At the height of his powers, and while the Peninsular War was going well for him, Napoleon Bonaparte had thought that he might be able to extend his empire to include Spanish colonies in South America. However, that was not to be the case. By 1818 Argentina had won its independence from its Spanish rulers, and by 1830, Uruguay had attained its independence from the Empire of Brazil, which had formerly been a Portuguese colony.

Nevertheless, France retained its Caribbean colonies of Guadeloupe and Martinique, and French Guiana on the coast of South America, the latter of which Henri Freycinet was such a successful governor, from 1827 to 1829, that he was promoted to Rear-Admiral, and Baron.

Interestingly Jacques Arago is listed as a Lieutenant of the 'Emulant'. Arago had been a member of Louis Freycinet's crew aboard the 'Uranie' for the 1817-1820 voyage. He died in Rio de Janeiro, Brazil, in 1855, having been blind since 1837.