Norwegian ethnographer and adventurer (1914–2002) best known for the Kon-Tiki expedition, during which he tested the theory of early contact between South America and Polynesia by successfully sailing a raft across the Pacific Ocean. Postcard photo of the Kon-Tiki, 5.5 x 4, signed in blue ink “Best wishes from Thor Heyerdahl.” Tiny spot of skinning and a few scattered dings and surface marks, otherwise fine condition. R&R COA.