Just put it up on eBay.. 251624670001
Original Ice Cold Coca Cola Sold Here sign.
After discussion with several collectors I have determined the sign is original and was used sometime between 1908 and 1914. The metal is high nickel content typical of the era, the paint color and application is typical for processes of the day.
Though there isn't a registered trademark printed on the sign, it is well known that prior to 1924 Coca Cola standards were not uniform countrywide. Examples of all types of signs and other paraphenalia can be found without the trademark.
I believe this sign was either used as a cooler side panel (hence the Ice Cold) or as a wall tacker sign.