Some background on this comic:
Transcript:
The seed for this cartoon all started with a simple T-shirt design. If T-shirts were as popular in the nineteenth century as they are today, I wondered what kinds of things they would say. The sketch above lead to this cartoon.
Good catch, updated it. I've got an ImageMagick command that tries to find each panel and rearrange them into a 2x2 grid, and it got screwed up because of the hole in bottom right border of the last panel.