The Superb was used as U.S. President Warren G. Harding's personal Pullman railroad car in a cross-country tour in 1923.

After Harding's death, the car returned his body from San Francisco to Washington, D.C.

In 1926 it was temporarily renamed Pope Pius XI for the Cardinal's Train from New York City to Chicago.

[2] The car was donated to the Southeastern Railway Museum in Duluth, Georgia in 1969 and opened to the public in 1995 after a 20-month restoration.

This article about a property in Georgia on the National Register of Historic Places is a stub.