This is the runestone Sö 254 in Vansta south of Stockholm. It is one of the 25-30 runestones mentioning the ill fated viking raid by Ingvar the Far-Travelled. There is also a saga about this raid that went far into modern day Georgia.
The inscription:
“Sven and Sten raised the stone in memory of Tosti, their father, who died in Ingvar’s retinue, and in memory of Thorstein, and in memory of Eystein, Alfhildr’s son.”
