Someone and Fukt contributed these images: "[We] happened to be breaking into an abandoned (but guarded!) military complex (as one does when there's nothing else to do), we spotted this fixture... in a building thats been entirely bricked up for many decades. Every door/window/vent has been bricked up. Not sure of the age of it, looking at everything else there, could be around 1900."
"Locally its known as Forbidden City... I guess it would be East Wear coastal defence batteries, and their associated complex. The fixtures were in what I believe to be barracks."
"I should like to add that no urinals were hurt in the making of these photos."