dawnsh - yes I did, clicked too quickly! Thank you very much for the link and the information, I now understand what that figure means. If I'd have calmed down a bit and not panic researched (read a million documents at the speed of light because it was a major discovery and not concentrated properly), then I probably could and should have solved it myself!!
Carol - I have decided it will remain a mystery for me. Maybe she won it at Bingo! I have been told she took in washing and made meals for a single gentleman, so perhaps he left her something when he died.
Thanks,
Pip
