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Southern Pacific (SP) "alligator" 3101 was in the Eugene, Oregon power pool on Friday, June 21, 1974.
SP 3101 was an ALCo RSD15, DL600B, SP Class AS624-1. Reportedly, it was built in 1959, construction number 83484, as SP 4817 class DF-502. It was leased in 1960 to T&NO as 251. It became SP 5161 in the 1965 renumbering as class AF624-1. In 1972 it was reclassified to switcher Class AS624-1 and then renumbered SP 3101. It was retired and sold in 1978.
According to OPRRMS years ago on Altamont Press, The vertically mounted disk shaped object on the top of the cab is a, "Receiver for the in-cab hump signals. Used on hump engines at Eugene, LA and Houston until replaced by more a modern radio system. After the RSD15s were retired, they were installed on the three C628s that replaced them, but I don't recall them being on the MP15ACs."
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Analog Image, Kodachrome 25 Slide 2.5-677, Scan 2010.11.13.1.13 & 16-ph, Train Scans Revisited
#train #trains #railroads #railroading #southernpacific #trainspotting #film #filmphotography #ALCo #eugene #oregon #eugeneor #kodachrome
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