GEC ZD10606 Lantern Installations
GEC's ZD10606 was an enormous post-top lantern (83.3cm in diameter) for use with: 250W-400W MBF/U, 90W SOX, or 310W-400W SON lamps. The lamp is mounted horizontally inside the lantern, between three struts which support the canopy. Much like many post-top lanterns, on top is a small nut which can be removed to access the internals.
Birmingham
A small park next to Vauxhall Road sports two post-top GEC ZD10606s. It is unknown what lamp-types these installations run, or if they are in service at all given the surrounding WRTL 2600s. The first one is located on a crossroad section of the pathways.
A view of the ZD10606 and one of the more modern WRTL 2600s:
Another ZD10606 was visible in the distance:
Oddly, this installation is located a bit further from any pathways, being placed in the grass.