Crawling into West Trenton Yard after completing its journey from Philadelphia International Airport, a train of Silverliner II MUs is dwarfed by a CSX double stack train overtaking it at West Trenton Station. Nearing fifty years in service, the Silverliner IIs soldier on as SEPTA begins to take delivery of their replacements, the Silverliner V. Also of interest on this train is the "R1 Airport" sign on the fireman's window. SEPTA did away the R designation routes earlier this year, but these signs have not all been replaced yet.