They had a brick base with wooden superstructure but usually also a brick back wall to the operating floor .
Most of the signal cabins on the broad gauge lines were to a BNCR hipped roof design by Berkeley Dean Wise that was introduced c1889 .
BNCR had a brick base with wooden superstructure but usually also a brick back wall to the operating floor .
Most of the signal cabins on the broad gauge lines were to a BNCR hipped roof design by Berkeley Dean Wise that was introduced c1889 .