Issued by the United Nations Postal Administration in 1975, this 31-cent stamp features a reproduction of a thirteenth-century fresco, part of a series celebrating world cultural heritage. The artwork depicts two Byzantine-style figures in richly detailed robes, rendered with the muted tones and solemn expressions characteristic of medieval religious murals. Through this issue, the UN highlighted its commitment to preserving artistic masterpieces as part of humanity’s shared heritage. It belongs to the UN’s cultural preservation theme, aligning with UNESCO’s mission.