Malmby
Ernfastr and Erngautr, Siggunnr's/Sigunnr's sons, have raised the stone in memory of their father Ketilfastr.
This rune stone is standing next to the road, though it's not at its original place.... Some 400 metres to the east is U 504. Last time I was there was 12 years ago, and then the stone was in a worse state, with much lichen on it. (point at the picture)
