@gunrunnerjohn posted:Class lights on the rear of the locomotive?
Yes. Class lights on BOTH ends of a diesel, since "hood type" diesels were/are bi-directional (in fact, both the N&W and Southern Rwys ran their diesel long hood forward). Those class light assemblies have a small, movable lever, so that the lenses inside can be moved from "white", to "green", to "red".
