This Colombian airmail stamp, issued in 1990 with a denomination of 130 pesos, commemorates the Centenary of the Inter-American System (O.E.A.), celebrating 100 years (1890–1990) of cooperation and dialogue among nations of the Americas. The design by M.C. Bertran G. features a map of the American continents interlaced with white communication lines symbolizing unity and collaboration under the Organization of American States (OEA). Printed by Carvajal S.A., it embodies Colombia’s commitment to hemispheric solidarity and shared progress within the Pan-American framework.