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. Some examples may still be in use on Network Rail today.

The kit can be built as a home or distant signal in any height up to 27ft. An alternative finial as shown is supplied to represent the open ball and spike pattern used on later NBR signals.

The kit is designed for soldered construction, but Araldite or superglue can be used in places, particularly if the finished signal is not intended to operate. Some simple marking out, cutting and shaping of parts is required. To see exactly what is involved in constructing this kit, download the instruction sheet as an Adobe Acrobat® file (116kb).