My Great Northern E7s (#s 503 and 505) and GP9 (#608 - shhh! that's not a prototypical reporting number for a GN GP9 ;-) ), and a Sounder set,...
AZL new brass E7s with directional lighting, powered B units (in B-B's only), injection molded windows, details, etc.
Direct from the man himself
This is the cab interior of PRR EP20 (EMD E7) #5901, which was one of the first pair of road diesels purchased by the PRR in Sept., 1945