Finely illustrated map of America, distributed in connection with the American Radio program Adventures of the Sea Hound during World War II.
The radio program and this map were intended to engage the interest of the American public in South America through popular culture. Produced on behalf of Nelson A. Rockefeller's Office of Inter-American Affairs (1940-46), the show was part of a national program to strengthen inter-American relations. Broadcasted five times a week, the show featured Captain Silver and his sidekick Jerry hunting Nazi spies throughout the hemisphere. As noted in Media, Sound, and Culture in Latin America and the Caribbean:
Adventures of the Sea Hound enacted a visit to a different country every show. In order to help its young listeners visualize the hemisphere and grasp the strategic importance of the sister republics, NBC encouraged listeners to request complementary materials such as Captain Silver's Sea Chart--a colorful map of the Americas that identified the most important products and carried pictures of outstanding heroes and flags of all the Latin American Republics.
The map also notes "Products Vital to the War Effort of the United Nations". A fine example of the map, which also has been re-issued with changes in 1943. Postage stamp and ink address on the verso.