| Here is page three of a ten-page cover article by David P. Morgan entitled "Duplex-Drives." It was published originally in the November 1959 issue of "Trains" magazine, page 19. Prominent here is Pennsylvania Railroad engine #6100, the S-1 (6-4-4-6) "Big Engine" built in Juniata during January of 1939 and retired in January of 1949 after just ten years of experimental service. Photo by Bliss B. Straight, Jr. |