The stone was discovered in 1802 as a cut piece in Sonder Kirkeby Church north-western wall. In 1809, it was taken out, and sent to Copenhagen. The stone was displayed in Rundetårn (the Round Tower) and then in 1867; moved to the National Museum.

Found: Sønderby Kirke, Busserisvej 1, 4800 Nykøbing Falster.
Present location: Nationalmuseet, Frederiksholms Kanal 12, 1220 København K.

The stone is granite, 79 centimetres high, 71 centimetres wide and 17 to 35 centimetres thick. It was carved somewhere between 950 and 1000.

The inscription "[Sa]ssurr satti stēn þennsi æft Āsgo[t] brōður sinn, en [hann] varð dǿðr ā Go[tlandi](?). Þōrr vīgi rūnaR [þessi]."
Translated: (Sa)ssur placed this stone in memory of Ásgautr his brother, and [he] died on Go(tland). May Þórr hallow [these] runes.