One of the four longitudinal stays which tie the outer wrapper of firebox to smokebox tubeplate.  (These are shown in the boiler before removal in picture 13 & 14)
One of the four longitudinal stays which tie the outer wrapper of firebox to smokebox tubeplate. (These are shown in the boiler before removal in picture 13 & 14)
Credit: Dick Bellchambers, 3 August 2005