The Chesapeake & Ohio's M-1 steam turbine-electric No. 500 appeared at the Chicago Railroad Fair, where as a boy of 10 I saw it in operation in 1949. At the fair the C&O distributed a leaflet describing the turbines' specifications. They had a conventional fire-tube boiler installed "backwards" behind the cab, and carried their coal in the nose section. The combination of steam and electric components was complex, and the units were unreliable and frequently out of service. They were withdrawn in 1949 and scrapped in 1950. The turbines' streamlining was emulated by the C&O's very successful class L-1 poppet-valved Hudsons, also planned for the aborted Chessie streamliner and built during the same period. This image came from the collection of Wayne Koch.