Issued by the United Nations Postal Administration in 1971, this striking pair of stamps celebrates the United Nations Volunteers (UNV) Programme. The hexagonal pattern symbolizes cooperation across various fields—education, health, agriculture, law, and technology—reflecting the multifaceted nature of volunteer service worldwide. Designed in two color schemes (blue 21¢ and brown 8¢), the stamps emphasize unity and the power of collective human effort under the UN emblem. These issues are valued for their symbolic design and their role in promoting global volunteerism during the early 1970s.