It depends on the condition, rarity and the artistic design of the bill. If it is a real confederate bill or not plays a part in the value. A coin shop can help determine if it is real or not, there have been many duplications of these bills that look like the real thing. If it is real dealers usually pay from 1-1/2 cents to 2 1/2 cents for circulated wheat cents. There is a book called the ‘Red Book’ A Guide Book Of United States coins that would be helpful for different currency of this nature.