Daylight freight on the Hudson Line. Northbound freight from the GM plant in Tarrytown heads for Selkirk ahead of Friday afternoon commuters. Three more B23-7's trail the leader and include 1912 and 1962. The 2 NB freights on this line at the time, TTEL and OPSE, were both scheduled to run at night so it is very unusual that this was running just ahead of NB commuters on a Friday. Based on off schedule run, I am guessing on the symbol based on consist.