Pennsylvania Railroad No. 94 is a class A5 0-4-0 switcher built at PRR's Juniata shops in 1917 for the Pennsylvania Railroad. The A5's were a development of Pennsy's A class, which started in 1885 with the A1 and A2, formerly Q class.
It was one of the class used as switchers on the Pennsylvania Railroad.
It was retired in 1956 and all the remaining PRR 0-4-0 switchers retired the following year. Later they were all scrapped.
Today it's on static display at the Railroad Museum of Pennsylvania. It is the sole surviving Pennsy A5s and was loaned to the museum by Penn Central in 1969, and then finally donated outright in 1979.