Found this old photo of a Coca-Cola advertising installation. Unfortunately, I couldn't find any information about it.
Anyone who's watched Leave It to Beaver reruns shouldn't be surprised that such large advertising installations existed so long ago. Remember the episode when Beaver got stuck in the soup bowl on the billboard?
UPDATE posted 3 August 2013
Turns out, the giant Coca-Cola bottle installation isn't vintage at all. It's located on Roman Square in Bucharest and it appears that it's still there today. Here's a color photo of it that I found at Bucharest Daily Photo.