Originally from GG1 4877:
Granted they were not the offset number board actually used by PRR, but the Tucsan PA's will have the correct type
of number board.
That's Ok, Bill Davis of American Scale Models has the correct Offset Number board bugeye Marker light combo that can easily fix those E7's!
http://americanscalemodels.com/O?product_id=2163
Here are pics I pulled off Da Bay of an O scale Phase III PRR F3