Princeton University Art Museum has sent six works of art back to Italy.
An agreement between the university and the nation says Princeton acquired the art in good faith.
Last month's return of a pair of statuettes, fragments of architectural pieces and other works is the latest in Princeton's nearly 50-year history of returning art to Italy.
In 1953, the university returned an ancient marble head of a goat that was stolen during World War II. But the mayor of Rome sent it back to the university.