Issued by Chile in 1971, this 3.50 Escudos commemorative stamp marks the 10th Anniversary of the Antarctic Treaty (1961–1971), celebrating international cooperation in Antarctica. The design features a polar explorer guiding a dog sled against a map outline of Antarctica, symbolizing scientific exploration and peaceful research. Printed by Casa de Moneda de Chile, the stamp reflects Chile’s geographic and political connection to Antarctic activities. Its bold monochrome engraving style makes it a notable thematic issue for polar and treaty collectors. A desirable addition to Antarctic exploration and international relations collections.