Issued by the United Nations Postal Administration in 1979, this 20-cent stamp promotes the theme Safety at Sea. The design depicts a ship sailing through fog, with navigation lights in red and green — a symbolic reminder of international maritime safety standards. The muted tones and reflective water emphasize the peril of poor visibility at sea and the importance of navigational vigilance. This issue forms part of the UN’s ongoing efforts to raise awareness of global safety and cooperation on the oceans.