Damned good thread, I need to pay more attention to this photo section, I enjoyed browsing through all these signs. I especially like that english and welsh river warning one.
Here's a few from my Chernobyl trip. It has only just occured to me while posting these photos that it is very odd that a sign in Ukraine would say "stop" in English
My contribution to this fascinating thread are sign inside DSG 189. Minehead, Teeside Coast, Crewe, original joint Norwich tram & bus stop, match striker on trolleybus, signage inside JVY 516 - an AEC Regal, believed to be last registered half cab coach in 1954