150w Atlas "Birmingham Corporation" lamp
This looks like a standard 1970s GLS at first glance, take a look at the curious etch however. I'm not sure where this would have been intended to be used, my guess is either in public spaces or in streetlighting. Also note the slightly higher than usual 250v rating.

150w Atlas "Birmingham Corporation" lamp

This looks like a standard 1970s GLS at first glance, take a look at the curious etch however. I'm not sure where this would have been intended to be used, my guess is either in public spaces or in streetlighting. Also note the slightly higher than usual 250v rating.

Screenshot_20210512-171557.jpg Screenshot_20210519-162748.jpg Screenshot_20210527-154855.jpg Screenshot_20210701-174627.jpg Screenshot_20210707-205444.jpg
File information
Filename:Screenshot_20210527-154855.jpg
Album name:LAllenLighting / GLS and Halogen lamps
Manufacturer:Atlas (Thorn group)
Type/Model:Pearl/Single Coil
Wattage:150w
Date manufactured:October 1965
Filesize:126 KiB
Date added:27 May, 2021
Dimensions:689 x 833 pixels
Displayed:13 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=15906
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Slyspark   [27 May, 2021 at 08:59 PM]
I'd guess stgreetlighting. I'd also suggest this has a slightly longer than usual neck, which I believe was a feature for GLS lamps used in open fittings (such as ESLA lanterns) to ensure the filament was correctly positioned to make use of the optics, or in this case the mirrors in the fitting.

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