This 10-cent stamp from South Africa (RSA) features George Stubbs’ celebrated equine painting Groom and Horse, reproduced from the collection of the South African National Gallery,...

This Polish commemorative stamp honors the Soviet cosmonaut Gherman S. Titov, the second human to orbit Earth following Yuri Gagarin. The design features a bold red...

A 1988 Polish commemorative issue honoring Hipolit Cegielski (1813–1868), the influential industrialist and founder of the famed H. Cegielski Metal Works of Poznań. The design pairs...

Issued by Canada, this 15-cent stamp celebrates Radio Canada International and its mission of broadcasting to a global audience. Designed with bold, stylized maple leaves radiating...

This 5-cent South Africa stamp features a dramatic maritime scene by Dutch Golden Age painter Willem van de Velde the Younger (1633–1707), celebrated for his stormy...

This 1956 USSR commemorative stamp honors Georgi Valentinovich Plekhanov (1856–1918), regarded as the founder of Russian Marxism. Issued on the 100th anniversary of his birth, the...

This 1959 San Marino L.3 commemorative stamp honors the 100th anniversary of the first postage stamp of Sicily (1859–1959). The design features the medieval Cathedral and...

This 1956 Ecuadorian airmail stamp (Servicio Aéreo) commemorates the 50th anniversary of the “Milagro de la Dolorosa” (1906–1956), a significant religious event associated with the Colegio...

Issued by Rwanda in 1975 to commemorate International Women’s Year, this 30 centimes stamp features Gari Melchers’ evocative painting “Mère avec son Enfant” (Mother with Her...

This vibrant 300-agorot stamp from Israel, issued in 1979, features a stylized illustration of a fig branch with leaves and fruit, rendered in rich green tones....

This 43c commemorative from Australia (1989) features a vibrant bouquet of native wildflowers, beautifully illustrated in rich, natural tones. Designed as a greeting-type issue, it highlights...

A distinguished 1965 Venezuelan airmail commemorative issued for the 100th anniversary of the death of Andrés Bello (1781–1865)—a foundational figure in Latin American literature, linguistics, law,...