"A shrunken head from Ecuador that was brought to the United States in the 1940s (and in 1979 was loaned as a prop to the film 'Wise Blood') has been authenticated and repatriated to its country of origin." Source: Live Science.
"In 1942, James Ostelle Harrison — a faculty member at Mercer University in Atlanta, Georgia, now deceased — acquired the object, known as a 'tsantsa,' during his travels in Ecuador. Harrison donated the head to the university, where it was displayed in campus museums for decades. Then, in the 1980s, the university placed the tsantsa in storage.
"Such tsantsas were crafted from human heads — typically belonging to a slain enemy — and were made and used in rituals in Ecuador until the middle of the 20th century by men in the Amazonian Shuar, Achuar, Awajún/Aguaruna, Wampís/Huambisa and Candoshi-Shampra populations, known collectively as the SAAWC culture groups, according to a new study about the artifact."
Related: The authentication and repatriation of a ceremonial tsantsa to its country of origin (Ecuador)