Friday’s ad is for Guinness, from 1932. While the best known Guinness ads were undoubtedly the ones created by John Gilroy, Guinness had other creative ads throughout the same period and afterward, too, which are often overlooked. This ad, one of many that used Lewis Carroll’s Alice in Wonderland is titled “Why Was The Mad Hatter Mad?,” and is about how Alice, the March Hare, and the Mad Hatter can’t get a glass of Guinness, and it’s making them mad.