Bristol & West Building Society Metal Sign

I am trying to learn more history regarding my sign. It appears to be from the UK Bristol & West Building Society company that used to give mortgages to people for many years. I think they were a very people oriented helpful company. I wonder if they are still in business? My sign, without the stand part, measures 23 1/2" wide by 35 1/2" high.
I hope you enjoy seeing my sign and I wonder if there are very many out there like this and what would be it's value?
Sandy