These posts are often found on housing estates built in the sixties or seventies where the telephone wires are fed underground into each house. In this image the bottom of the post is obscured by a modern plastic cable joint container, but it has a similar triangular retaining screw like its larger brother below.
This is a rare wider version of the more common post shown above. Within the jointing post will be a cable joint of thin multi-coloured wires joined together with crimp on insulation displacement grease filled sleeves.
The narrow version are often used as distribution points (DP). A single multi pair cable arriving from a street cabinet is cross connected to thin two pair cables running to each house. This allows economic use of expensive multi pair underground cables, as only premises requiring a telephone need a corresponding pair of wires in the cable from the jointing post back to the street cabinet.
