![](http://www.alamy.com/thumbs/6/87034E85-9F6B-497B-938C-6B0ABDDCA829/F6B1GP.jpg)
[St. Louis-San Francisco, Diesel Electric Road Switcher No. 503]
Size: 1574px × 1588px
Photo credit: © ART Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, corporation, diesel, division, electro-motive, frisco, general, gmc-emd, historic, history, locomotives, motors, photograph, railroad, railroads, slsf, switchers, trains, vintage, yards