20th Anniversary of UNESCO - 10 fils
This commemorative postage stamp was issued in 1966 by the Federation of South Arabia, a British protectorate in the southern portion of the Arabian Peninsula centered around Aden. Releasing this dedicated postal issue allowed the regional administration to join member states and territories worldwide in celebrating a milestone anniversary for United Nations specialized agencies, highlighting regional participation in global scientific and educational networks.
The issue was released to celebrate the 20th anniversary of the founding of UNESCO (the United Nations Educational, Scientific and Cultural Organization), which was established in November 1946. This specific stamp focused on UNESCO's scientific mandate, honoring two decades of international cooperation dedicated to advancing global scientific research, environmental conservation, agricultural innovation, and technology transfer across borders.