A ready painted cast resin model of a modern era large lineside control cabinet.
Resembling a small hut these cabinets can be found all over the modern UK rail system, often being installed as part of the railways' radio network to ensure good signal coverage for cab-to-shore radio links.
Frequently the buildings are also used to contain signalling equipment for track circuit detection operating automatic signals and Train Protection Warning System (TPWS) control circuits.