Whetstones made of mica-schist from the distinctive Eisdorg rocks of southern Norway. They were widely distributed on sites around the North Sea throughout the medieval period. A 9th-century boat carrying these hones was found near Kaupang.
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Whetstones made of mica-schist from the highly distinctive Eisdborg rocks of southern Norway were widely distributed on all classes of sites all around the North Sea throughout the medieval period. A 9th-century boat carrying these hones was recently found near Kaupang.