This Mexican airmail stamp, denominated 20 centavos, depicts the national emblem of Mexico—the eagle devouring a snake—alongside an early airplane flying above the Valley of Mexico. The distant volcanoes, Popocatépetl and Iztaccíhuatl, form a dramatic backdrop, symbolizing both tradition and progress. Issued in the 1930s, this classic design reflects the rise of aviation and its role in modernizing communication. Printed by the Oficina de Hacienda, Mexico, it remains a sought-after issue for collectors of early Latin American airmail and aviation themes.