When are old soda signs considered vintage?

Most soda product signs that are listed as vintage date between 50 and 70 years or older, as stated by Collector's Weekly. Vintage Coca-Cola signs were often created in the 1930s, but ones that were created in the 1950s are still considered vintage and worth money.

The most commonly found vintage soda signs are made of porcelain enamel coated with glass of various colors to give the sign a multi-toned look, fused on an iron base. These signs were found in stores including general stores and soda fountains. A sign such as this has more value based on the condition.