Some ancient spray pigment markings. There once was a simple black Kwiz outline on this concrete slab at a tunnel of a small creek. It is barely visible in the Oct 2013 photo and not at all in 2023. The spray-can character, which I have attributed to Kwiz as well, showed up well in the summer photograph, circa 2003. As far as I can tell, it was non-existent when I revisited it 2017. Although, I think it’s worth another look to make sure. I’ve also included the iconic beanie character from the same era, not far away, and quite possibly done with the same can of Krylon gloss black.