On August 22, 2015, the Rockhill Trolley Museum held a dedication that brought three cars from three generations into service. The oldest is Johnstown Traction No. 311, a double-truck Birney from 1922. Also dedicated was Philadelphia Transportation Co. PCC No. 2743, built in 1947 and recently overhauled. The newest is San Diego Trolley U2 car No. 1019, built in 1982. The oldest and newest of the trio meet at the museum's Altoff Siding on dedication day.
