This is a real advertisement in Life from the July 14, 1972 issue. I thought it so funny, just had to share. I don’t think the drink idea caught on.
The print reads:
Campbell’s Beef Broth right out of the can and onto the ice. Take it straight or add a dash of Worcestershire or lemon peel for a kicky switch. Great way to cool off a hot day. It’s great for dieters, too. Only 16 calories a 5-ounce serving. Don’t even wait for a real hot day; start pouring now. Cheers!