A $7.5 million find: Overlooked map turns out to be 14th-century treasure
Alex Clauson and Barry Ruderman, who buy and sell antique maps in California, found a rare map – a 14th-century "Rex Tholomeus" Portolan Chart – at an estate sale for Gordon Getty. They bought the map for about $250,000, but found out that it's really worth $7.5 million.