Henryk Arctowski and International Lighthouse Day

The stamp on the right commemorates the 150th anniversary of the birth of Polish scientist and explorer Henryk Arctowski. The postmark commemorates International Lighthouse Day. On the postmark is an image of the Arctowski Lighthouse on King George Island which sits off the coast of the tip of the Antarctic peninsula. There are several research bases on the island, including Poland's Henryk Arctowski Station.