An entertaining thing about this strip is how similar the fence-scrawled depiction of Charlie Brown is to the boy himself. And yet, despite his "correction" of the image, Charlie Brown doesn't actually smile in this strip.
The Peanuts characters of this phase of the strip exist in a kind of archetypal comic strip land of childhood that doesn't really exist anymore. Fences on which things are drawn is one aspect of it. Drugstores that sell comic books is another. You expect characters to pop knotholes in fences through which to spy on ball games. It's the same land that Nancy and Sluggo live in.
