Henrysix,
Not sure about the rich part
but pieces I sold in auction came from a house clearance after a relative died some years ago.
I must have restocked a large portion of the Oxfam Bookshop on Byres Road as my aunt had a lot of books.
It's amazing the things people gather during their lifetime.
My aunt was a lovely person though I think she was a bit of a hoarder.