5Raftery, Joseph. "An Early Iron Age Sword from Lough Gur, Co. Limerick." The Journal of the Royal Society of Antiquaries of Ireland Seventh 9.3 (1939): 170-72.
The author states that the sword belongs to the class of Irish Iron Age swords with straight sides, and suggests a date for it between 75 and 50 BCE. The lake currently has a level of approximately 75 m (247 ft)., but when the area was first surveyed in 1840 the level was 77 m (252 ft), and evidence of a still higher shoreline suggests that at one time the lake was larger. (Mitchell, G.F. "A Pollen-Diagram from Lough Gur, County Limerick." Proceedings of the Royal Irish Academy. Section C: Archaeology, Celtic Studies, History, Linguistics, Literature 56 (1953-1954): 484.)
In a nearby area, not far from the lake, a Late Bronze Age shield (c. 700 BCE) was found.