This United Nations commemorative stamp set was issued in 1955 to mark the work of the World Meteorological Organization (WMO), highlighting global cooperation in weather science and atmospheric research. Featuring a striking meteorological balloon and global transmission lines, the design symbolizes international data sharing for weather forecasting and climate understanding. Issued in both 3¢ blue and 8¢ red denominations, the stamps reflect early scientific optimism during the post-war era. Multilingual inscriptions emphasize the UN’s global mission. A classic thematic addition for collectors of United Nations, science, and space-age philately.