Wednesday’s ad is for Rheingold from 1969 and uses baseball and the signs of a good player, showing a few of the qualities one might look for in a good ballplayer. Then it applies the same idea to beer, saying “Look for the sign of a great beer! The Rheingold 10 minute head.” Look at that mug, it’s all head. A generous head, yes, but one that takes 10 minutes to subside (which is my presumption as to what they mean) seems like suspect advice to me. Two fingers is pretty much ideal for most beers, but more than that and you’ll lose too much carbonation and flavors, and Rheingold at that time probably didn’t have much to spare.