Route indicator panel and control board for retarders at Wath marshalling yard 'A' hump, c. 1935. Route indicator panel and control board for retarders at Wath marchalling yard 1935
Route indicator panel, wood, York. Dimensions; 32.8346 x 90.9449 in (834 x 2310 mm). Route Indicator Panel, York
Signal, route indicator, metal semaphore type, Stockton & Darlington Railway. Signal, route indicator