Issued in 1975, this commemorative set from the United Nations marks the 30th anniversary of the UN’s founding (1945–1975). The vibrant design features the UN flag flying above stylized human figures in green, red, and blue — symbolizing unity, diversity, and collective progress. The inscription “The Hope of Mankind” reflects the organization’s enduring mission of peace and cooperation. The stamps were released in denominations of 10¢ and 26¢, printed in multilingual format representing the international character of the UN.