12RB. High Street, Angel, London Borough of Islington Attached to a building located adjacent Duncan Street are four Revo 'Silverblue' C13594 / 6 /S 1950s' lanterns, designed for running a 250 Watt (C13594) or a 400 Watt (C13596) MA/V (medium pressure mercury vapour) lamp, but nowadays, are fitted with LED 'Corn' lamps instead. Prior to that, elliptical high pressure sodium (SON-E) lamps were employed; however, the lanterns are not original to this building, and only in 2012 Google Street View imagery do they make an appearance. The lanterns are installed on short 90 degree outreach brackets that position them parallel to the walls, giving the appearance of bulkhead fittings instead of street lighting lanterns.
The first two lanterns are to be found either side of the building's southern doorway.
All four are in good external condition, with none having any visible damage to any of the glass pieces that make up the overall bowls. The lower (i.e. front in this view) panels of these two lanterns may have been replaced, as the glass appears not to feature the distinctive dimpled patterning that would have been installed here originally.
Although the LED lamps create a peculiar 'dotted' effect through the glass, the cool-white light is more in-keeping with the former mercury lamps.
The northern end of the building is a mirror image of the first, and the two lanterns are positioned at the same equivalent points on either side of the doorway.
These examples still feature the dimpled effect to their (ordinarily) underside panels.
The brackets look to have been made specifically for this location, given that the outreach positions the lanterns immediately in front of the building's decorative stone banding.
With these lanterns not being original to the building, and having run lamps very different from those that they were designed to operate, I suspect that much of the inner wiring will have been renewed, while the magnetic arc deflectors used for allowing the MA/V lamps to be burnt horizontally without their arc tubes rupturing may have been removed completely.
For saying that the lanterns are installed on completely the wrong plane, there does not seem to be much of a build-up of dirt of trapped moisture within them.
The lanterns must look quite a sight after nightfall.
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