DetectingDayz

Hello there I have recently found what i believe to be a Anlaf Guthfrithson Silver raven penny whilst i was out metal detecting I have tried to research for the same coin online but i cannot find the exact same coin, i can only find the Anlaf Guthfrithson silver penny with raven on front side and small cross on the reverse side when as the one which i found has a sword on the reserve side with writing which says Hrafn Konungr which when i translated from old norse to english translated to RAVEN KING.. Have any of you guys come across a coin with this same design? Im wanting to find more out about it but so fair nobody seems to be able to give me any info.. Thanks