Tax Tokens represent the introduction of sales tax. During the Great Depression, 12 States decided they could raise revenue by implementing a sales tax. Missouri was the first State to introduce them, (1935) and last State to stop using them. (1961) Sales tax levels ranged from 1% to 3%. Tax Tokens came in different denominations. If you look inside the image of the State of Missouri, you'll see a number 1. This number represents how many "mills" the token is worth. Each "mill" represents 1/10th cent. So your token would be used to pay 1/10th cent tax. For example, you make a purchase for $1.10 in a State that had a 1% sales tax. You'd have to pay $1.10 for the goods and a penny plus this 1 mill token for the tax. Without tokens, making a purchase of less than a dollar resulted in "no way" to pay the sales tax without cheating either the buyer or the seller because you know the State was going to get their money! The token you found is most likely made of zinc. They also had tax tokens made of cardboard and plastic. HH Randy