Pennsylvania Railroad

The Pennsylvania Railroad (AAR reporting marks PRR) was an American railroad that was founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania. The PRR was the largest railroad by traffic and revenue in the US throughout its 20th century existence and for a long while it was the largest publicly traded corporation in the world. The PRR corporation still holds the record for the longest continual dividend history: it payed out annual dividends to shareholders for more than 100 years in a row. In 1968 the Pennsylvania Railroad was merged into Penn Central Transportation.

The Pennsylvania Railroad's corporate symbol was a keystone which is Pennsylvania's state symbol. The letters PRR (Pennsylvania Railroad) were intertwined inside it. When colored, it was bright red with silver-grey edges and lettering.