There's got to be tons of these plaques around! Keep em coming guys. Heres a couple from the Mountain Quarries Railroad in Auburn,CA:
Now thats what I'm talkin bout! Very cool! Wish I had one of one of the shield style "mobile plaque".
On the side of SP&S 4-8-4 700: Pretty heady stuff, that....................and it's run in excursion service.