A Norfolk Southern intermodal train heading from Morrisville PA to Chicago IL, passes under the old Pennsylvania Railroad position light signals in Leetsville, Pennsylvania, on September 21, 2019. Norfolk Southern train 21E has ET44AC 3644 and Dash 9-44CW 9586 for power. This would be the last full day of operation for these venerable old signals, this design of which began to be used in the 1920s, as the signal bridges in Leetsville would be removed the next day, on September 22, 2019. (Thanks to Marc Lingenfelter for the symbol.)