ALCo Century C-424 Engine #452 Photograph by Frank (Lenny) Smith at Mechanicsville, NY (DHVM Website)
ALCo Century C-424 Engine #453 Photograph by Gerry Landau on May 16, 1981 at Allentown, PA (DHVM Website)
ALCo Century C-424 Engine #456 Photograph by Dave T. Klutchko (Winter 1984-85) at Taylor Yard, PA - DHVM Website