Issued in 1968 to commemorate the XIX Olympic Games, Mexico City, this vibrant trio highlights international unity through prominently displayed national flags and the Olympic rings. The 1P and 3C values feature the Philippine, Mexican, and Korean flags alongside a stylized map motif and Olympic torch emblem. The striking 75C airmail stamp presents a dynamic assembly of world flags, including the United States, Japan, Great Britain, USSR, and others, celebrating global athletic cooperation. The bold typography and vivid color contrasts make this set visually appealing and highly thematic. A desirable issue for collectors of Olympics, sports philately, flag themes, and airmail commemoratives.