There's probably a fat pigeon that's eaten a young kid flying around or something!
I have seen Seleniums in Salisbury, on a mixture of older columns and new ones. I think the Selenium makes the Phosco P700 look like Kate Moss!What, the P700 has it's compartments too far apart on the 'face' of the lantern?
Okay, here's another one.
Urbis Albany. The lantern body is not secured to the threaded piece of metal that sticks out from the top of it. Instead, a plate of round metal above the lantern body is welded to the thread, then there is a rubber piece and then the top of the lantern. A rivet goes through from a metal plate inside the lantern, through the top of the lantern, through the rubber, to secure to the round metal. (more will be revealed once I get my website done - or I may put some pics on here). Long and short is that when you tighten / loosen the lantern on the tight thread in/out of the bracket, this rivet first cuts a groove through part of the top of the lantern (so instead of a small hole, you have an arc) and then the rivet shears off. this leaves the lantern to spin around on the thread... if you have enough thread showing above the top of the lantern before the bracket then you can use some big wrenches to get the thread out of the bracket, but otherwise the lantern would have to be stripped right down in order to get it off the bracket once the rivet fails.
Maybe this shouldn't be seen as a 'fault', maybe it's a cunning plan so that the rivet fails and then the albany can NEVER be removed!! (cue 'mwuahhahahahaha!')
(maybe this got fixed in newer versions... as mine is a first generation albany)