This is a stone that can be found at a place called "Trosa Bro" It means "Trosa Bridge" Trosa is a town that used to be where this stone stands. There is a stream that is mabe 3 meter wide that runns trough therer and it was a bood place for farming and fishing and so on. But due to the sea level sinking, the town had to move 5 kilometer down stream where you can find it today. But the stone still stands about where it used to stand.