It is not a field marker or a forgotten gatepost. Carved into its face, in contracted Roman capitals, is an inscription that records the outer edge of civic authority: "The Liberties of the City of Limerick ascertained 1786, Sir Christopher Knight, Mayor." The Liberties, in Irish urban history, referred to the area immediately outside a city's walls that nonetheless fell under the jurisdiction of the municipal corporation. This stone was placed to make that boundary precise and permanent, marking the point beyond which the Mayor of Limerick's writ did not run.

When the 1840 Ordnance Survey six-inch map was drawn, the stone was carefully recorded and labelled "Liberty Stone," positioned directly on what the cartographers called the Parliamentary Boundary of Limerick City. The inscription itself points to 1786 as the year the boundary was formally measured and confirmed, under the mayoralty of Sir Christopher Knight. A 1913 description, published by Barry, gives its dimensions as roughly two feet two inches by three feet three inches, a modest slab by any measure. What makes its survival quietly remarkable is that by the time the more detailed twenty-five inch Ordnance Survey map was produced in 1897, the stone no longer appears at this location, suggesting it had either been moved, obscured, or simply overlooked by surveyors working at that moment. It reappears, clearly visible, in Google Earth imagery from 2018, apparently incorporated into the roadside boundary structure.

The stone sits on the southern verge of the R503 at its junction with a local public road, and it is easy to pass without realising what you are looking at. It has been absorbed into the roadside boundary rather than preserved in any formal sense, which means the inscription faces outward but is not signposted or interpreted. The lettering is worn but legible. A careful look along the verge at the junction is usually enough to locate it, though approaching on foot from a safe pull-in is advisable given the road traffic. There is no visitor infrastructure here, which is precisely what makes the encounter, if you seek it out, feel like something genuinely found rather than presented.