One of the interesting things about living in our times is that all the boundaries are blurred. We no longer know if something is advertising, art or genuine. Sometimes I know people find that annoying. But to be truthful, I don't really care. If something catches my fancy, then it catches my fancy.
Like this letter stuck to a heating pipe in an old factory turned into artists studios in Berlin. It seems to be half ripped off and the first line appears to say "My gallery owner threw this out with me..." but as it is half ripped off, who knows. I know that I like making up the story that goes along with these words, somewhat like the people at Found.