A gallery in West Tisbury, Mass., on the island of Martha's Vineyard, has reportedly acquired a much-admired painting by American master Thomas Hart Benton. The 1926 painting of a moving train, titled Going West, has rarely been exhibited in public.

While the similar lithograph is widely known, the original oil has only been shown at a 1927 gallery show and, and more than fifty years later, at a Christie’s auction in New York. The piece was then owned by a Connecticut couple, and was once in the collection of embattled comedian Bill Cosby and his wife, Camille, who lives in Massachusetts.

Featuring a black locomotive in a great state of motion, Going West is “one of Benton’s greatest achievements as well as one of the greatest achievements of 20th century American art,” says art historian Henry Adams of Case Western Reserve University for the gallery's description. “Few paintings in the history of American art are so American.”