CR 4426 Leads Amtrak's Silver Star across the Bush River bridge in Aberdeen MD, 5/80

Conrail E44-4426 is on the point of what I believe to be N/B #82, the Silver Star. Amtrak E60CP-952 is trailing, as the train crosses the Bush River. I don't know the reason for the E44 leader, or where it was added. Late afternoon on 5/10/80 in Aberdeen, MD.