Quote Originally Posted by rspears View Post
That's not making sense to me, jb. I'd say take a picture of one and post it, but I know THAT's not gonna happen! Green background is reserved for "Guide" signs, like distances to the next town, or information to help guide to special interest points that are not safety related. This summary of signs doesn't show anything like you've described....https://en.wikipedia.org/wiki/Road_s...:_Exclusionary
Groan!
Mea culpa...I've got the brains of a stick...and a brittle one at that...likely to snap at any moment.
I wrote green, when I meant to write BLUE!
Total tossed egg.

I looked through what you posted Roger, (thanks for that, much appreciated!) the blue one with the H denoting Hospital was one of what I was looking at.
But what do the other letters denote?