Pip, you make a very interesting point. Many sellers, whether professional dealers or just collectors, do not have encyclopaedic knowledge and rely mainly on the story that came with the piece. If they bought it in an auction described as Whitefriars, then they will sell it on as Whitefriars. In most cases there is no intention to mislead. People just say whatever it is that they have been told either by the person from whom they acquired it from, or by people they have shown it to. "It must be very old because my grandmother is over 70 and her mother gave it to her" Thought bubble: so presumably your great-grandmother bought it new 15 years ago!
As for those stories that come with the piece, some of my earlier work is beginning to appear in charity shops and at fairs so from time to time I hear some wonderful stories about myself and how I made a particular piece and I often wonder whether I have missed entire chapters of my life!!
