Re: Blue "Tank Car Connected" Sign
True. In some cases they just used an actual blue flag or blue lantern at night (aha! that's why some lanterns have blue lenses!).toggle quoted messageShow quoted text
In other cases, a piece of sheet metal was painted blue, hand lettered and bolted onto some sort of stand that would clip onto a rail by the shop. The specific wording on the signs is a rather recent development.
Now they have specific signs for specific applications and some signs are red not blue and they have blue flashing strobes, etc., etc., etc.
Violating a blue flag was, and still is, a firing offense.
--- In STMFC@yahoogroups.com, Tony Thompson <tony@...> wrote: