Breakfast of Champions

Here’s another gem discovered by Henry Bossett, an illustrated ad for Pettijohn cereal. According to Mr. Breakfast, Pettijohn’s was produced by a Chicago company from 1889 until 1893, when Quaker Oats bought it. As was the case in those days, the artists were anonymous.
UPDATE: The artist is Fanny Cory,  one the first  female syndicated cartoonists.