Wednesday’s ad is for the UK brand Double Diamond, which was originally owned by Allsop, but is now part of the Carlsberg dynasty. The ad’s tagline, “Loyal Greetings from the brewers of Double Diamond,” and shows their cartoon mascot propping himself up, high into the air, on beer bottles so that he can better see the passing parade. As for when the ad is from, the bottom offers a clue. The phrase found there, “A Double Diamond Works Wonders,” was used during the 1970s. I assume there was some sort of royal ta-do going on.