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PRR's electric empire

Photos from the Classic Trains collection of the Pennsylvania Railroad's 11,000-volt A.C. electrified lines
14800K4Zoo
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First GG1 with a K4 at Zoo

GG1 4800, renumbered from 4899 but still wearing its original striping, stands beside K4s Pacific 5426 at Zoo interlocking, Philadelphia, on November 30, 1934.
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STEAM LOCOMOTIVES

Learn about the many types of locomotives — from tiny 0-4-0s to the giant Big Boy — that powered the railroads for more than a century. Read more now. »

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