Coincidentally, many of the town's holiday parks also installed Z8430CMs on 8m Concrete Utilities Avenue 3DNN and 10m New Highway columns in the 1960s. Thankfully, many of these survive, and
there is a particularly good example of the former still going strong in nearby Walton-on-the-Naze (from zedfive's Flickr site).
Here are some images of this fabulous installation of mercury-running Z8430CMs on 8m Concrete Utilities Avenue 3DNNs at Naze Marine Holiday Park in Walton-on-the-Naze, Essex. The daytime photographs of this holiday park in this post were taken in April 2016.
How the same road in the holiday park looks at night. Both nighttime photographs were taken last night (January 2018).
Another view of Naze Marine Holiday Park taken in April 2016.
This is the same vlew at night.
Where casual replacement lanterns have been needed, the Tamlight "Tamcourt" 90W SOX lantern has been used.
Many of the holiday parks in the top corner of Essex have legacy local authority lighting. This mercury-running GEC Z8430CM on a 10m Concrete Utilities "New Highway" column is one of a small collection on Highfield Grange Holiday Park in Clacton-on-Sea, Essex. This photograph was taken in May 2016.