Hi Christine,
Thanks for that link and I will get in touch with them but I suspect that they do not have any of the old records.
It is possible that this is a rare piece as no one else has come up with possibilities .
I spoke to Nigel and he looked at it but he is currently unable to post here due to computer problems. With out the Mappin , London connection he thought it might be German.
Lets hope I can find some more information because it is certainly an unusual shape.
Regards,
Patrick.