Coca Cola signs are highly prized and this one is exceptional. It's a good example of the famous round Coca Cola Button Sign. There is some visible pitting and rust from 70+ years of advertising.

 

Coke signs have been made in a variety of styles and methods over the years and the process involved the work of many artists and craftsman before a sign was ready to display. The Coca Cola button sign was made in several diameters from as small as 8-10 inches all the way up to 48″ and even larger.