Universal Postal Union (UPU) Centenary
Costa Rica · 1974 · 10 c
This airmail stamp commemorates the 100th anniversary of the Universal Postal Union (UPU). The design features a stylized globe with lines of longitude and latitude, overlaid with the word 'Languages' in multiple languages, symbolizing the UPU's role in facilitating international communication. The UPU centenary logo is also present.
Issued in 1974, this stamp was part of a worldwide series celebrating the centenary of the UPU, an organization established in 1874 to standardize international postal policies and rates.
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