I put up one of these pics on the SWSAT thread and here is both pics from that day. Head End showing Pennsy Geeps long-hood-front practice.
Rear End:
A Baldwin Centipede Pusher shoving hard. Super-Power in-the-day @ 6000HP. Built and billed as fast passenger power the Centipedes were quickly re-geared and downgraded to Pusher service on the Hill.