On the 16th of August 1976 the "Declaration
of Bogota, calling for the economic integration of South America, and
for non-intervention in the internal affairs of the South American
states, was signed.
The design on the stamp is a political map of South
America. Venezuela, Colombia, Ecuador, Peru and Chile are colored, and
their capitols are indicated by a small circle. The outlines of Peru
and Ecuador are based on Peru's claims, although the border was not
settled until 1998. The boundaries of Bolivia and Paraquay reflect the
borders agreed to in the "Treaty of Buenas Aires."