This ninth century gilt silver vessel, discovered on an English farm by a father-son team of treasure hunters, contained one of the biggest Viking treasures ever found. The bowl packed with coins and jewelry was buried more than 1,000 years ago — a collection of items drawn from Ireland, France, Russia and Scandinavia in a testament to the raiders' international reach and terrifying power.associated press

LONDON — One of the biggest Viking treasures ever found has been discovered on an English farm by a father-son team of treasure hunters, the British Museum announced Thursday.

The trove of coins and jewelry was buried more than 1,000 years ago — a collection of items from Ireland, France, Russia and Scandinavia that testified to the raiders' international reach.

"It's a fascinating find, it's the largest find of its type of over 150 years," said Gareth Williams, an expert at the British Museum.

David Whelan, 60, and his 35-year-old son Andrew were trawling a through a farmer's field near Harrogate in northern England on Jan. 6 when their metal detector squealed. The pair began digging, finding a silver bowl more than a foot beneath the soil. Under British law, such finds must be reported to authorities.

The pair turned the bowl over to archeological experts, who discovered it was packed with coins and jewelry. The bowl, a ninth century gilt silver container probably seized by Vikings from a monastery, had been used as an improvised treasure chest.

In all, more than 600 coins and dozens of other objects, including a gold arm band, silver ingots and fragments of silver were found in and around the container.

Some of the coins mixed Christian and pagan imagery, shedding light on the beliefs of newly Christianized Vikings, said Gareth Williams, a curator of early medieval coins at the British Museum.

The booty was likely accumulated through a combination of commerce and warfare, Williams said. Its quantity indicated that at least some of it was taken by force, perhaps in raids on northern Europe or Scandinavia, he added.

The Vikings raids were chronicled as early as the eighth century by Christian monks on the coasts of northern Europe.

The raids spread throughout Europe, from modern day Spain to Turkey.

In some places, the raids grew into full-fledged invasions, and Viking kingdoms were established in Britain, Ireland, and Normandy, France, among other places.

The British Museum said the loot was hidden sometime after the fall of the Viking Kingdom of Northumbria in 927. Vikings often buried their wealth in times of trouble.