this is an example of Old Norwegian as it was around 1255. It is again Arne Torp who made the video, check out his website here:
http://folk.uio.no/arnet/
This street sign probably refers to Haraldr Hárfagri (Harald Fairhair), ruler of Norway from c. 872 to 930, who recaptured Shetland and Orkney from his rivals in c. 875. Many streets in central Lerwick are named after Scandinavian Kings, Queens and…
This street sign probably refers to Hákon Hákonarson, King of Norway from 1217 to 1263. Many streets in central Lerwick are named after Scandinavian Kings, Queens and Saints, particularly from the medieval period.
Website for Avaldsnes: Noregs eldste kongesete (Norway's Oldest Royal Seat), which includes information about the Avaldsnes History Centre, Viking Farm, and background information about the Vikings, illustrated with images of re-enactors.