Dirty 'button' unearthed by metal detectorist turns out to be a rare 900-year-old coin from Norway's last Viking king, Magnus Barefoot

A metal detectorist in Norway discovered what appeared to be a tarnished button but turned out to be a coin from Magnus Barefoot, the 11th-century Norwegian king often considered the nation's last Viking ruler. The coin, approximately 900 years old, represents the first specimen of its kind ever found in Norway, according to researchers who examined the artifact.

Magnus Barefoot reigned from 1073 to 1103 and earned his nickname from his practice of wearing short kilts in the Scottish Highlands during military campaigns. He expanded Norwegian control over territories in Scotland and the Western Isles. The newly discovered coin dates to his reign and provides archaeological evidence of the monetary systems used during this transitional period in Scandinavian history.

The detectorist initially dismissed the find as worthless due to its degraded appearance and small size. Experts later identified it as a legitimate historical artifact bearing markings consistent with Magnus Barefoot's coinage. The discovery contributes to understanding economic practices in late 11th-century Norway and demonstrates how Viking-era rulers commissioned coins as symbols of authority and trade facilitation.

Finding coins from this specific period on Norwegian soil remains exceptionally rare. Most surviving examples reside in museum collections or were recovered from hoards found elsewhere in Scandinavia. The circumstances of this discovery—through amateur metal detecting rather than professional archaeological excavation—highlight how important artifacts continue to surface in unexpected ways.

The coin's condition and findspot provide researchers with data about medieval trading patterns and the geographic distribution of Magnus Barefoot's monetary circulation. Such discoveries offer tangible connections to historical figures often known primarily through written records and sagas. This find reinforces that significant archaeological evidence from Norway's Viking Age still lies beneath the surface, waiting for detection by alert searchers with the right equipment.