Issued in 1984 by the USSR (Russia), this three-stamp commemorative set marks the 50th anniversary of the legendary Arctic expedition of the icebreaker Chelyuskin (1934). The 15k stamp dramatically depicts the ship trapped and crushed by Arctic ice, while the 45k highlights the heroic air rescue operation—one of the earliest large-scale polar airlifts in history. The 6k value features the vessel with a mapped Arctic route, emphasizing the ambition of the Northern Sea Route mission. This set is historically significant, celebrating Soviet exploration, bravery, and the awarding of the first “Hero of the Soviet Union” titles. A powerful thematic addition for collectors of polar exploration, maritime history, aviation rescue missions, and Soviet commemoratives.