Where in Echo Park is This?

Echo Park journalist Julie Walmsley noticed this image near an Echo Park corner Monday.

It suggests the work of a somewhat controversial Echo Park artist, though we can't be sure he's behind it.

Tell us in comments where this is.

As Walmsley notes on her blog, Dorner T-shirts and bumpers have already proliferated, so we wonder if there is more than one spot where this might be found.