Issued by the Ryukyu Islands in 1965, this 3-cent commemorative stamp marks the 20th Anniversary of the United Nations, celebrated globally as International Co-operation Year. The design prominently features a handshake framed by laurel branches, symbolizing peace, partnership, and diplomatic unity among nations. Beneath the emblem appears a globe highlighting the Ryukyu Islands, linking the local territory to the global theme of cooperation. Printed in soft blue tones with multilingual inscriptions, the stamp reflects the strong international messaging common to mid-1960s commemoratives. It is a meaningful collectible representing Cold War-era ideals of global collaboration.