A Cambridge classic - the GEC Z9530

There used to be loads of these in Cambridge, but they were gradually swept away by the PFI replacement programme in 2012-16. Later a whole load disappeared in 2020-21 due to the City council removing some on housing estates. Now they are very scarce, the top example here is privately owned and does not work, and the lower version has a newer lantern next to it but was not removed during the PFI programme.