I photographed this object attached to the wall on the Picadilly Line at Kings Cross station. I also found another almost identical unit on the Northern line platform. As you can see from the photo, this object is strongly attached to the wall. It is comprised of a tough steel box, a knob on the front with what appears to be a hex-key slot. On the side there is what looks like a spout, which is attached to a thick metal flange. At the centre of the spout is an orage section, this is actually a lens.
Because of the curvature of the wall it is not possible to look directly into the device, so I cannot tell if the orange colour comes from the lens that is inset into the flange, or something deeper within the device. It does not appear to be emiting any light, however it looks like it ought to.
Would anybody care to tell me what this device is? There is no prize, just my admiration. I shall have an answer, even if it means hassling every underground obsessive in our fair nation.
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