Group A runes were most common in Viking Age Denmark
Thorfast
Old Norse Þorfastr (m.)
Þorfastr is a common male name in the eastern part of the Viking world – it is common in Swedish runic inscriptions and is even found in the inscription on a rune-stone fragment found in Finland, as well as a couple of Danish ones, but it does not occur in any Norwegian or Icelandic texts. It can be found in the runic inscription on the Lincoln comb-case.