This $05 Cape Verde stamp, issued in 1981, features a reproduction of a 15th-century Portuguese nautical chart, dated around 1471. The map depicts early Atlantic explorations, highlighting the Cape Verde Islands and surrounding waters. Its design includes colorful landmasses, compass lines, and an ornate wind rose, symbolizing the era of maritime discovery. The stamp pays tribute to Portugal’s cartographic heritage and Cape Verde’s role in historic sea routes. A valued collectible for maritime history and cartography enthusiasts.