Traders would normally carry a folding scale that weighed the coins so they could make sure that they got a fair deal. The Vikings created the city of Dublin, which became the trading centre of Europe.
A hoard of artefacts including more than 200 coins, ingots & pieces of silver jewellery, found buried in north Lancashire. The British Museum are examining the hoard after it was discovered in a lead pot by a metal detector enthusiast.
The hilt is all that's left of this sword, found in a pre-Christian burial mound in the Hebrides (Scotland). It probably belonged to an important leader. BBC - Primary History - Vikings - Beliefs and stories