[Roccus]

In Woodside, NY back in the 70's, a citizen, tired of seeing graffiti all over the handball wall in a schoolyard, painted a duplicate of the cover of "Darkside of The Moon." It remained , untagged, for decades.

[wideawake]

I've seen that precise handball wall. I grew up in Glendale in the 70s.

[The_Reader_David]

Actually that's the wierd thing about graffitists in ghetto culture, while we regard their 'work' as uglifying and defacing buildings, railcars, etc., they think of themselves as artists, and will usually not paint over other art (as they see it), whether other graffiti (which can provoke a gang war) or what we (or event the 'hoity-toity' Philadelphia Art Commission) would see as art.