Viking age 793–1066. Artefacts from this age are elusive and consequently very rare and this is reflected in the prices they command. Pieces that are discovered tend to be stirrup mounts and belt buckles, more rare are brooches in a tortoise or trefoil shape often used to fasten shifts and cloaks. Purely ornamental jewellery was highly favoured by the Vikings not only as a way of enhancing personal adornment but as an indication of wealth. Scandinavian traders explored the northern British Isles in their characteristic long ships visiting important ports such as Dublin and York. Yhey also raided Northern areas as well as trading and coexisting with indigenous people.