Sunday’s ad is for Pabst Blue Ribbon, from 1951. Starting in the early 1950s, Pabst started a new ad campaign with the tagline “What’ll You Have” which lasted for a few years. They were colorful ads, and often had the tagline spelled out in creative ways. In this ad, “What’ll You Have” is written on flags flying on the back of a boat, with a tray holding two bottles of PBR and two glasses. Curiously, the two glasses also have flags on them, and they spell out “CS” though I have no idea what that might stand for.