Tuesday’s ad is for Bier ein Kraftquell, or Beer – A Power Source, from 1951. From the late 1800s until the 1960s, poster art really came into its own, and in Europe a lot of really cool posters, many of them for breweries, were produced. In addition to posters and other promotional materials, the German Brewers Association also produced calendars promoting their beer beginning in 1951. This is the May/June page from the 1951 calendar, featuring an illustration by German artist Heinz Fehling. The imagery looks very similar to another poster he did, entitled The Worker. It’s impossible to read, but the text in upper left-hand corner is “The creative man drinks beer. It strengthens and refreshes.”