All told, that’s 150 dummy CCTV cameras installed on one wall. SpY says they were installed “with the intention of not watching over anything.”
And yes, dummy CCTV cameras are a real thing that people install on their buildings. The fake cameras are just empty boxes and don’t actually record anything of course, but most people would never take the time to figure out the difference between an active camera and a dummy. If you like this piece by SpY, definitely check out Brad Downey‘s classic CCTV Takedown video where he goes around London looking for buildings where these dummy CCTV cameras have been installed and removing them.
PS, if you missed the reference in the headline of this post, see here.
Photos from SpY’s website