An autographed postcard by researcher and Hero of the USSR Ivan Papanin

Ivan Papanin is an Arctic researcher, Doctor of Geographical Sciences, Rear Admiral, twice Hero of the Soviet Union, recipient of nine Orders of Lenin. In 1937-1938, he headed the world's first drifting station, the North Pole. Streets in Moscow, Tula, Yaroslavl and other cities are named after Papanin.

The postcard comes from Leonid Sladkov's personal collection. Leonid Sladkov worked for the USSR Philately magazine for many years and always, when meeting with the heroes of his essays and interviews, asked them to sign on a postal envelope or postcard. This is how his collection appeared, which today has become an authentic document of the era.

Currently, the exhibit is taking part in the exhibition "Saving the Arctic: Stories of Great Voyages" aboard the world's largest nuclear icebreaker "50 Years of Victory" as part of an expedition to the North Pole.