Rosemary Gardens, Mortlake, London Borough of Richmond-upon-Thames Located adjacent Mortlake Railway Station is a 15 ft (5 m) Stanton 7 concrete column supporting a short outreach bracket and later (late 1970s' - early 1980s') Mk 1 Philips SGS 201 (ME 70) lantern, for 70 Watt SON (high pressure sodium) lamps - at the time, this wattage was still relatively uncommon; indeed, it was the only SON option for this time, along with 125 Watt MBF (mercury vapour) and 35 Watt SOX (low pressure sodium) offerings in the HGS 201 and XGS 201 lanterns, respectively. This part of Rosemary Gardens appears to be in private ownership, which is probably why the installation has survived.
As I took these pictures seconds before catching a train, I am uncertain as to whether or not further examples existed.
Unlike this type, later versions of the lantern saw the single piece GRP (Glass-Reinforced Plastic) canopy replaced with a type with a detachable back, from where the internal wiring could be accessed. On these versions, the same is accessible by removing the plastic panel over the rear of the lantern (seen slightly ajar in this view).
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