The Pennsylvania Railroad Altoona Coffee Mug features Pennsylvania Railroad’s beautiful dark “hunter” green “E” unit in charge of the St. Louisianian passenger train, rolling over the Juniata River stone arch bridge, near “Horseshoe Curve in Altoona, PA. Printed back and front. Dishwasher and microwave safe. 11 oz. Check out the other PRR items we offer at MrTrain.com .

Beginning in the early 1910s, the PRR received the FF1, but decided that it was too slow for passenger trains; it was relegated to heavy freight service. In the mid-1920s, it received the L5 electric, which had a third-rail power supply at the time. When the Pennsylvania built the O1 and the P5, it chose the P5 over the O1 for its ability and power on the rails. After a grade-crossing accident with the P5, the cab was moved to the center and was designated P5a. PRR still searched for the ultimate electric, since the P5 did not track well at high speeds and was wondering if the P5a could be improved even further. Soon enough, the Pennsylvania was in luck and found two contacts as early as 1932. The mechanical design of the GG1 was based largely on the EP3, which the PRR had borrowed from the New York, New Haven & Hartford Railroad to compare it to the P5a.^[9] In 1933, the PRR decided to replace its P5a locomotives; it asked General Electric and Westinghouse to design prototype locomotives with a lighter axle load and more power than the P5a, a top speed of at least 100 miles per hour (160 km/h), a streamlined body design, and a single (central) control cab.^[10]