Depicts maps of Madeira and Porto Santo surrounded by the inscription "600th Anniversary of the Madeira and Porto Santo Discovery". Madeira is a Portuguese archipelago situated in the north Atlantic Ocean, southwest of Portugal. The capital of Madeira is Funchal, which is located on the main island's south coast. Porto Santo Island is a Portuguese island 43 kilometres (27 mi) northeast of Madeira Island in the North Atlantic Ocean; it is the northernmost and easternmost island of the archipelago of Madeira, located in the Atlantic Ocean west of Europe and Africa.

A geographical image of Europe

Edge lettering, fine milled

In 1419 two captains of Prince Henry the Navigator, João Gonçalves Zarco and Tristão Vaz Teixeira, were driven by a storm to the island they called Porto Santo, or Holy Harbour, in gratitude for their rescue from shipwreck. The next year an expedition was sent to populate the island, and, Madeira being described, they made for it, and took possession on behalf of the Portuguese crown, together with captain Bartolomeu Perestrello. The islands started to be settled circa 1420 or 1425. On September 23, 1433, the name Ilha da Madeira (Madeira Island or "island of the wood") appears in a map, by the first time, in a document.