The medal's obverse bears busts of Roosevelt and Alves, slight left. Around, PRES. THEOD. ROOSEVELT / U·S·AMERICA - : 1906 : - PRES. RODRIGUES ALVES / E·U·BRAZIL; signed at right, (EL monogram)
The reverse bears legend, TERCEIRA / CONFERENCIA / INTERNACIONAL / AMERICANA / RIO DE JANEIRO / BRAZIL / 1906
James G. Blaine, a United States politician, Secretary of State and presidential contender, first proposed establishment of closer ties between the United States and its southern neighbors and proposed international conferences to further that goal. Blaine hoped that ties between the United States and its southern counterparts would open Latin American markets to US trade and prevent European nations from meddling in the Americas.
The Second Pan-American Conference in Mexico had created the Pan-American Railway Committee and tasked it with the creation of a railway connecting the various American republics. Their initial report was presented at this conference and further, more detailed planning took place.
The circular medal measures 45mm in diameter and was struck in bronze. No mintage is reported.