Wednesday’s ad is for Blatz Beer, from 1949. The ad is part of Blatz’s “I lived in Milwaukee, I ought to know” series from the later Forties and Fifties that featured prominent celebrities, sports figures and famous folks from Milwaukee claiming to know “Blatz is Milwaukee’s Finest Beer” because they lived there, or near there, at some point in their lives. This one features well-known actor Pat O’Brien, who was born and raised in Milwaukee.