This runestone was first documented by Richard Dybeck, who is known as the author of the lyrics to the Swedish national anthem, in 1860: "The runestone stands between Litslena and Herkeberga Church, so close to the edge of the road by Kalstad - part of the lower inscription has been damaged."
The cross on the stone indicates that Ágautr was a Christian. The name Ágautr does not appear in any other material (either other rune inscriptions or middle age sources). Lidhsmadhr is also an unusual name, there is however a mention on another runestone in nearby Simtuna with this name, on inscription U 1160, which possibly could reference the same person.
The place name Kelsstaðir in the runic text, sometimes read as Kal-taþum, refers to the modern hamlet of Kälsta.[2]
Inscription
A transliteration of the runic inscription is:
+ lis(m)[a]--... auk + tuki + rastu × stain + (þ)i(n)a + aftir + akaut + bu(k)i + i + k[a](l)[staþ](u)m[1]