As Bob Dylan sang, "...the times, they are a-changin'..." At Andover, VA in 1988, the yard crew is switching the cab track. The three units represent the two predecessor roads of NS, spliced by the one piece of equipment that's actually been repainted into NS "colors." At the time, cabooses were still used on virtually every train here, so you have a selection of four each Southern bay window cabs and four N&W cupola cabs. Notice the different shades of red paint used by the respective companies. The Southern favored cupola cabs as well in the steam era, using a variety of wooden models. But the bay window cab became the standard starting in the late '40s. N&W, on the other hand, stayed with cupola cabs, except for some NKP bay window cars plus some others acquired through merger.