Description
The typical North British or Great North of Scotland Railway signal consisted of a lower quadrant arm on a lattice post, with a ball and spike finial and round-case lamp, all supplied by Stevens & Co. Post-Grouping, the LNER modernised many of these signals by replacing the arm with the upper quadrant Westinghouse type. A square-case lamp was also fitted at the same time. An alternative finial is supplied to represent the open ball and spike pattern used on later NBR signals. Some examples may still be in use on Network Rail today.
