This strip of three se-tenant stamps were issued to commemorate 200 years of Birth of Charles Darwin, an English naturalist, who went on HMS Beagle under Captain FitzRoy on an expedition to chart the coastline of South America. Throughout the voyage, Darwin spent most of that time on land investigating geology and making natural history collections, while the Beagle surveyed and charted coasts.
The background of the three stamps shows the world map with route of the HMS Beagle, which made stops at Cape Verde. The design on first stamp shows Darwin and evolutionary tree, second stamp shows drawing of HMS Beagle, and the final stamp shows young Darwin studying an octopus.
Many thanks to my friend, Manuel Moreira from Portugal for sending me this stamp set.