Expedition Kon-Tiki Thor Heyerdahl

First Swedish edition of Expedition Kon-Tiki (Stockholm: Bonniers, 1949), signed on the title page by three members of the original Kon-Tiki expedition - Thor Heyerdahl, Herman Watzinger, and Torstein Raaby. Illustrated with numerous photographs and maps documenting the 1947 Pacific crossing from Peru to Polynesia on a balsa-raft, this work became one of the 20th century's most iconic narratives of scientific adventure and human endurance. This copy presents a clean, bold trio of autographs and retains the original light-blue cloth binding with gilt spine title. Text and images crisp; mild edgewear and faint toning consistent with age. A highly desirable signed example of the first Swedish edition - a landmark in exploration literature and a cornerstone for collectors of polar and maritime expeditions.