The seller is a charity, Norfolk Hospice. They provide care in the final phase of a terminal illness. Their new facility was opened by the Queen in 2016. People donate to them and they sell either from local shops or increasingly more poular, on
ebay. The person doing the listing can't be an expert at every item that is donated and put up for sale.
I've bought a lovely old 1940s Stanley Gibbons catalogue from such a charity. It's nice to know that the money is going to a good cause.
Not so funny now...