![](http://www.alamy.com/thumbs/6/9B97EBEE-314C-478E-9F9A-B30CD90C8B2C/2JX2W68.jpg)
BR British Rail - Up Main railway train signal, B Box, showing statuses of Train on line, Normal, Line Clear
Size: 4968px × 3564px
Location: Crewe,Cheshire,England,UK, CW1
Photo credit: © Tony Smith / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -box, 1940, 1940s, @hotpixuk, box, british, cheshire, clear, crewe, electro, england, gotonysmith, green, hotpixuk, indicating, line, main, mechanical, needle, network, normal, north, rail, railway, railways, red, relay, relays, safety, showing, shows, signal, signalbox, station, status, statuses, technology, train, trains, transport, uk, white