In the present study, the silver content of 155 Viking-Age coins was analyzed. The aim was to re-exam the traditional interpretations of the silver content of different coinages during the Viking Age, and to offer an overview on the subject. The main question is what level of silver purity was considered as fine silver in everyday transactions in the Northern Lands and what variation was tolerated? The second aim of the study was to find possible inconsistencies in the silver content.