Issued by Panama to commemorate the centenary of the historic 1826 Congress of Panama led by Simón Bolívar, this finely engraved stamp features a dignified portrait of El Libertador. Printed by Waterlow & Sons, London, the deep blue steel-engraved design showcases crisp line work and ornate classical framing. The dual dates (1826–1926) mark 100 years of Bolívar’s vision for Latin American unity. A popular inter-war commemorative, it is valued for both historical importance and elegant British security printing quality. Well-centered, clean examples are highly collectible in Latin America and thematic independence collections.