<http://www.ghostsigns.co.uk/2013/10/anarchy-on-the-walls-ghostsigns-street-art-graffiti/#article>
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"Inspired by Signs, Sign Preservation, Art, Article, Augustine Kofie, Graffiti, Kasey Smith, London, Patek-Ecklon, Perception Filter, Protection, San Francisco, Street Art, UK, USA"
<http://www.ghostsigns.co.uk/2013/10/anarchy-on-the-walls-ghostsigns-street-art-graffiti/>