This vintage Coca-Cola magazine ad is from a 1940 Ringling Bros and Barnum and Bailey Circus Magazine and Daily Review. I find it fascinating that it uses a military theme before the war.

Click on image to see it larger.
(SOURCE: Ringling Bros and Barnum and Bailey Circus Magazine and Daily Review, 1940)
To see other vintage Coca-Cola ads click on "Coca-Cola ads" or "Coca-Cola" below in the labels.