The world's most expensive ancient coin has emerged for sale - for a cool £2million. This Greek drachma was first struck 2,418 years ago and has risen in value at nearly £1,000 a year ever since.

A private collector has spent a pretty penny to get their hands on a 2,000-year-old gold Greek coin. Known as a Panticapaeum stater, after the ancient Greek city in modern-day Crimea, the coin ...