Ahem; just to put in a bit on "marker lights":
- on the front they are called "classification"or "class" lights - never "marker"
- on the rear (tender) they are "marker" lights, and are red, or off (these are "taillights",
and are only on if the tender is the last car in a train, as in, for example, a pusher situation)
- the class lights may be white (running extra), green (second section is coming) or red
(when loco is backing up, essentially), or Off
- most of the time on most RR's these lights, both ends, were Off.
- I actually disconnect mine, often, as I don't like the "decorated" look.
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No one cares about all this, but it just bugs me, and it comes up sometimes, but in most situations your loco's marker (rear) and class (front) lights should simply be Off, and in the steam era, during daylight, except at the very end, on some roads, that steamer's headlight should be Off, too.
