Coca-Cola Red Disc Ad Sign. A classic symbol reminding us that there is a delicious, cold, refreshing Coca-Cola near. Coca-Cola has been advertising with its iconic Red Disc (“button”) sign since 1947. This collectible is one of the rare original large metal point-of-sale ad signs. It has a diameter of approx. 3.5′ and it weighs around 22 pounds. Having this authentic Coca-Cola Red Disc Ad Sign on your wall as decor will surely impress everyone who enters.