This pair of United Nations stamps, issued in 1958, honors the establishment of the World Meteorological Organization (WMO) — a key UN agency dedicated to atmospheric science and global weather cooperation. The design features a meteorological balloon ascending into the sky, symbolizing scientific observation and data collection. The inscriptions appear in multiple languages, reflecting the WMO’s international collaboration under the UN framework. These stamps capture the spirit of global unity in advancing weather forecasting and climate understanding during the early space and scientific era.