| The trailing U33C 6875 (ex-EL 3307 and former CR 6570) smokes it up while a pair of 1977-built SD-40-2's (6439 and 6432) lead mixed freight through Spruce Creek, PA in November, 1980. Both 6439 and 6432, part of CR series 6431-6440, underwent an operational cost comparison program in 1977. Participants of the program received a white star under their cab numbers. |