A core penthouse extraction duct, not sure what it was used for, presumably toilets. 24 Sep 2011.
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See full size image Caption: A core penthouse extraction duct, 24 Sep 2011 Description: A core penthouse extraction duct, not sure what it was used for, presumably toilets. 24 Sep 2011. Alt text: A core penthouse extraction duct, 24 Sep 2011 Image credit: Team Urbex - ATF Photo subject date: 24/09/2011 |