Last Friday I went exploring on a heavily overgrown part of the old Clara Banagher line.
Right where I have marked with the arrowhead, I photographed a discarded telegraph pole top
Telegraph lines in Ireland only go along road way or railway lines, so its not likely to be something going cross country like ESB wires do. But, the stabilizer shown looks much to clean for something that is lying around for almost 60 years, having been installed God knows how many years before hand.