A collector hid his treasure from the Nazis, his widow kept it secret for decades, but now Roman aurei, Greek staters and British pounds so rare that some have never been sold at public auction have ...

Hidden in aluminium boxes, this huge, high-quality collection could sell for $100 million or more. Find out how here.

Over time, coins can become rare collectibles that are sold for thousands, if not millions, of dollars in the present day.

Assembled in the 1930s before being buried for 50 years, the consignor of the so-called Traveller Collection has chosen to ...