Saturday’s ad is for Duraglas, from 1940. It’s Duraglas, a brand of glass bottles owned by the Owens-Illinois Glass Company, that’s “Changing Beer Bottle Behavior.” If you peek behind the action of the woman handing a green bottle to one of the two tuxedoed gentlemen into the refrigerator, you can see a green, brown and clear glass bottles sitting on the shelf inside. But in the foreground, it’s a brown bottle of beer being poured into the glass next to the salad. If you look closely at the bluish wallpaper around the ad, there are bottles of beer with brands on them, like Carnegie Pilsener Beer, Kato Pilsner Beer, Felsenbrau, Old Ox Head Ale, Mule Head Stock Ale, Topaz, Stegmeier Porter, Monarch Beer, Ruppert Ale, Hillcrest Lager Beer, Lucky Lager, Cincinnati Burger Brau, Top Hat Beer, Lucky Ale, Edelbrau Porter, and that’s just some from the left side. They all appear to be different, which is pretty amazing. I recognize enough of the brands to assume they must all be real brands from the time period.