Thanks again Nik,
I did find it on the Whitefriars site last night after you gave me the good news, I can't believe that the name Whitefriars did not enter my head as a possibility.
I did pick up another vase, clear, heavy, large with blue swirls yesterday which probably started life in a Heart Foundation shop but I may take a photo and list it later. i thought I could make out a signiture on the base.
Has anyone else noticed how much Whitefriars type glass is being sold new in these Heart Foundation charity shops over the past year or so.
Bryn (not Brian)