An old light at the end of a row of abandoned pig houses and, amazingly, it still works. The style looks just post-war but it must be a long time since it was used as a working light. Look at the amount of dead flies in the glass bowl, practically soup, but now it's yet another piece of unused equipment on a West Norfolk farm.
That swan-neck is rather fine though, quite classy really and it reminds me of H.G. Wells' War of the Worlds.
No, we don't know why either.