Rubbish masquerading as art, litter louts with a sense of humour - or a bit of a laugh, done by someone who has already arranged for this old mattress to be responsibly recycled? Discarded mattresses are not unusual in this part of town, and at least this isn't a particularly disgusting example, but the art reference is a bit off. Ceci n'est pas une pipe reads the text on the famous surrealist painting. This version is a bit mangled, and mattress certainly isn't a French word. Whatever the motivation, there it sits on Dalston Lane waiting to be removed. The bin men were there today and one of them asked what it was about, but they were doing a proper regulated collection, not just picking up any old stuff.