This 15-cent commemorative stamp from the Bahamas marks the 20th Anniversary of UNESCO, issued in 1966 (QEII era). The design highlights UNESCO’s scientific mission, featuring a laboratory flask with a stylized globe, symbolizing global scientific cooperation, and three orange wheat stalks, representing progress in agriculture and human development. At right appears a finely engraved profile of Queen Elizabeth II. A clean, modern layout and limited palette give this issue strong visual appeal. Highly regarded in Commonwealth topical collecting—especially UN, science, development, and QEII reign themes.