The Freedom Train (graffiti)

The Freedom Train was a graffiti mural painted on a New York City Subway train of R36s on July 3, 1976. The artwork was intended to commemorate the United States Bicentennial, but it was prevented from being seen in public by the New York City Transit Authority (NYCTA) who removed the train from public service.

Source: Wikipedia — The Freedom Train (graffiti) (CC BY-SA 4.0)