This is just about Patty at her most charming. Before she became half of the soul-destroying tag-team of Patty & Violet. Peanuts & Schulz: A Biography implies that most of the strip's characters were based, at least originally, on real people. I don't think it's necessarily useful or accurate to make this claim beyond the level of inspiration, but still. I wouldn't like to think that happened between Charles Schulz and whoever Patty and Violet were based on.
(It's also possible, now that I think about it, that I'm conflating Patty and Violet's later roles. Well, getting these things straightened out is part of the reason I'm going through the whole course of the strip.)
In the last panel there is an odd space in Patty's word balloon, like a word got whitened-out between Schulz and print. (Also, for some reason I feel like there should be an exclamation point after her statement there, but that's not really a big deal.)
