Dave, you stated,
The main reason that neither you nor I would see them Keith is that we would not be looking for them. We are not travelers. It does not affect us.

You would have to read it to know it barred Travellers.
It would affect you if it barred people of Polish descent, but if it just barred Travellers or blacks you would ignore it and move on, THEN FORGET YOU HAD EVEN SEEN IT!

Tacit acceptance of racism. That would make you a bigot, and you suggest Rag is the same.

I do not claim no single sign exists, so I can not call anyone a liar, but if they were really common throughout Britain one of us would have seen one.
And remembered it!