Graffiti Posters & Re-purposing Junk Mail

I may be expanding the definition of "graffiti" a bit when I include creative, non-commercial posters pasted up, not unlike what Shepard Fairey does with some of his potent designs.

Earlier this summer of 2013 I saw a set of traditionally printed posters with intriguing images pasted on the Northbank Park stairway:

I couldn't find much about the phrases on the poster "undisturbed conscience" and "the revolution has begun" but a Google search of "undisturbed conscience" brought up a flag-like image with the strange sigil in the upper left and the text of the First Amendment written on the white stripes...a tea party group? The sigil looks slightly fascistic to me, but I could be wrong.

The homemade poster below is cut from junk mail advertising and then decorated with paint and marker, perhaps a parody of consumer culture or a spoof on the fact that we all subsidize the junk mail we despise.

And there were other faces and posters pasted on the stairs...

         

Though I still don't know the origin of the "Undisturbed Conscience" posters, the corner of one that was ripped down wins my heart with it's image of Edgar Allan Poe with a halo...