http://farm1.static.flickr.com/126/418142576_c9480f4b28.jpg
The number 24.20.3 is found on the billboard.
==Content==
This site also mentions something called [[Operation Chip Sweep]], which led to another website, also apparently based in England.
== Hidden Numbers24.20.1 was also found on this site.24.20.3 was found on the billboard.24.20.4 was found on the [http://farm1.static.flickr.com/124/418209836_e12fe81937.jpg flyer].
== Notes ==
* [http://www.met.police.uk/history/brixton_riots.htm Operation Swamp 81] refers to an actual plainclothes police operation and related riots in Brixton in 1981. Operation Swamp 0000 seems to be named after this historical event.