When I used to work as an archaeologist, I heard a lot of bad-mouthing about metal detectorists. These guys scan the ground for coins and other metal objects. Most of the time they only find a few old pennies. It's when they discover something of historic value that some archaeologists get grumpy. Many archaeologists don't trust metal detectorists, saying they disturb ancient sites and pocket their findings.

This week's discovery of a Viking hoard of silver in England shows how responsible metal detectorists, far from being nosy snoopers into the sacred soil of archaeology, can actually help us learn more about the past.

The hoard, found near the appropriately named village of Silverdale, Lancashire, includes silver brooches, coins, arm-rings, and ingots. There are 201 pieces in all, weighing more than two pounds, and they were buried around 900 AD. While artistic value of the jewelry is priceless, it's one of the coins that tells us something really significant. It's of a type never before seen and bears the inscription AIRDECONUT which may represent the Scandinavian name Harthacnut. There's a famous Viking king by that name, but he lived a century later and his coins look different, so this appears to be a previously unknown Viking king.

Interestingly, the other side reads DNS (Dominus) REX, with the letters arranged in the form of a cross. This was a period when Vikings were beginning to abandoned the old gods like Thor and Odin and turn to Christianity. Also in the horde was a fake silver coin made from copper with a thin silver wash, and Islamic coins from the Middle East.

This isn't the first time a metal detectorist has found evidence for an unknown ruler. Back in 2004, a man using a metal detector uncovered a Roman silver coin in Oxfordshire dating to 271 AD and bearing the face of Emperor Domitianus II. This military officer had been garrisoned in Britain and took advantage of the chaotic political situation to proclaim himself emperor. He minted some coins to celebrate the occasion but his rule only lasted at most for a few weeks. The coin was part of a hoard of about 5,000 coins. This coin is now on display at the Ashmolean Museum in Oxford.

In both cases, the lucky guys did the right (and legal) thing--they reported their finds to the proper authorities. Laws governing such finds differ from country to country, but it's always important to report anything you find that may be of historical significance. You never know, you might have discovered a new king.

Photo courtesy Portable Antiquities Scheme.

Gallery: Lucky metal detector finds

Filed under: History, Learning, Europe, United Kingdom