When it was first recorded in 1790, this ogham stone was a visible, vertical presence in the middle of Ballineesteenig. Ogham is an early medieval Irish script in which letters are represented by groups of notches and scores cut along the edge of a stone, most commonly used to mark personal names and genealogical claims. At some point after its discovery, the stone was broken in two, and the fragments were put to use around a farm before eventually being moved to Burnham House, now Coláiste Íde, where they remain.

The stone itself is a long rounded boulder, 1.98 metres in length and a metre in circumference. Despite the break across its middle, which destroyed two of the E scores in the inscription, the text remains clearly legible and reads MOINENA MAQI OLACON, a formula meaning roughly "of Moinena, son of Olacon". The scholar R.A.S. Macalister catalogued it in 1949 as number 147 in his corpus of Irish ogham inscriptions. What makes the stone additionally interesting is a small Latin cross cut into its opposite face, a combination that points to the early medieval period when ogham traditions and Christian practice overlapped. The cross was almost certainly added after the original inscription, reflecting a common pattern across Irish ogham stones where later hands left their own marks on already-ancient monuments.