Off Bridge Street, Howden Farm, Crook, County Durham With thanks to Oliver Davison for informing me of these Survivors. Attached to a building by way of a minimal outreach wall bracket is a GEC Z8128, from the 'Clearmain' range. This is likely to be a 1960s' example, owing to it using the later tapered prismatic glass refractor bowl, rather than the non-tapering bowl that my own example uses. By this time, advances in lamp technologies allowed this lantern to run 125 - 400 Watt MB/U / MBF/U (high pressure mercury vapour) lamps, in addition to the earlier 250 - 400 Watt MA/V (medium pressure mercury vapour) lamps that would become obsolete in the same decade; the cessation of the manufacture of these lamps being a likely reason that the Z8128 was also withdrawn from GEC's product line-up within the first few years of the 1960s - it had existed, in one form or another, since the 1930s. Also attached to the wall a little further along is a Coughtrie PW.15, which was probably installed to supplement the Z8128, though its brightness was probably somewhat lower!
The short outreaches to both fittings makes them rather inconspicuous, and easy to overlook.
Rendering has been applied to the building at some point after the PW.15 was installed, causing much of the bracket's mounting plate to be obscured.
The bowls on both fittings are very clean, although this view of the Z8128 suggests that there might not be a lamp installed in it any longer.
The underside of the bowl features two 'main beam' arrows to ensure that the bowl is positioned the correct way around in the lantern. Given the short outreach of the bracket, lowering the bowl for lamp changes must be tricky here.
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