Friday’s ad is for “Coors Beer,” from 1938. This ad was made for the Coors Brewing Co., who did not do as much advertising as their competitors. In part, this was because they were not sold nationwide until the 1980s. This shows one way that “Nature at its Best,” because it made the Bonneville salt flats which turned out to be the best motor speedway,” which naturally (pun intended) leads to the creation of perfect spring water for brewing beer in the Rocky Mountains. Um, okay.