Because I sure don't! I found this last year in a corn field near my house. This area was settled sometime around the 1830s. My dad found a 1834 dime AU50 with his metal detector about 1 mile away from this site. As you can see, someone has tried to drill it a couple times, and it has been man-handled by a plow a couple times as well. Diameter is exactly that of a modern us quarter. On the front, there is a basket, with some kind of grass in it. On the back is wording, the words go around the rim, there is a circle, with words written in lines horizontally. The letters appear to be regular roman alphabet.