With the shield wall all but gone the Norwegians were now greatly disadvantaged. Harold's forces were now able to inflict serious harm on the Viking invaders. In the upper border appears the rune Berkano. Its animal symbol is the swan. In Norse mythology, two swans drink from the Well of Urd. The water of this well is so pure and holy that all things that touch it turn white. In the lower border two men take autumns harvest to the mill for processing.