You might want to check your attic for a vase that looks like this

A retired chocolate factory worker who took an old vase to a provincial auction house in a cardboard box is in line for a million-pound bonanza after being told it was a Ming moonflask. Experts at Duke's in Dorchester, Dorset, were stunned when the 79-year-old man, who used to work for Cadbury, showed them the 29cm-tall vase, thought to date from between 1403 and 1424 ...

"It is the largest recorded example from a rarefied group of early Ming moonflasks dating from the Yongle period."..

Last year, Duke's sold a Chinese vase from the Qianlong period for £765,000. It had been used as an umbrella stand by its owners.