The history of advertising signs dates back to the late 19th century when businesses began using them to promote their products and services. As the popularity of these signs grew, companies began producing them in large quantities, making them a common sight in cities and towns across the United States. Today, vintage advertising signs are highly sought after by collectors, and their value can vary widely depending on factors such as rarity, condition, and historical significance. Some of the most popular types of advertising signs include those for popular brands such as Coca-Cola, Pepsi, and Ford, as well as signs promoting popular products like cigarettes, gasoline, and food products. Collectors often search for vintage advertising signs at flea markets, antique stores, and online auctions. It is important to be cautious when purchasing signs, as there are many reproductions and fakes on the market. Authenticating a sign can be challenging, but collectors can look for telltale signs of authenticity, such as the presence of rust, fading, and wear consistent with the age of the sign.