An incomplete silver early medieval penny of the Vikings possibly minted in the name of Sihtric and imitating swordless St Peter Two-Line Type coins which were minted in York, c.905-920. Sihtric Caoch was the Scandinavian ruler of Dublin from 917-920 CE and subsequently the ruler of Northumbria from 921-927 CE. It is not certain why he left Ireland. The Irish annals state that it was ‘through the grace of God’ and do not elaborate on the politics behind his departure. After the establishment of the Danelaw, some Viking leaders decided to mint their own coins to solidify their legitimacy in the eyes of the local populace. This created a hybrid economy where some members of the Danelaw used bullion and others used coins.