We carried out a condition survey of the eight remaining cast-iron Police Call Posts in the City, with a full conservation plan for the restoration and maintenance of all the posts, including the replacement of all missing parts.
These were manufactured in the early 1930's by British Ericsson and ceased to be used in the 1960's. The upper hatch opened to give access to the telephone; the middle door opened horizontally to provide a writing surface and the larger, lower storage cupboard contained first aid kit etc. The posts allowed the public to call the Police station and were also used for the station to contact the officer on the beat by flashing the red signal light.