I photographed this and many more just like it in the northeastern United States. It’s everywhere, on bridges, water tanks, buildings exc. It possibly could be occult symbolism. Can anyone decode what it means. I have photographed these same symbols in NY, NJ, MA, VA and many more. It is always by itself and has no other graffiti around or part of it, just these three symbols. It’s an upside down triangle, then three horizontal lines and the a circle with a dot in the center, always the same. I believe this one was on the George Washington Bridge in NYC. I don’t know why the photo rotated but it did. I figured I would cast a line into the patriot pond and see if I get a bite.