This is a rare 1935 Mercury Silver Dime with a machine error. The coin is composed of silver with a fineness of 0.9 and was struck in business style at the Philadelphia mint. It is uncirculated and ungraded, with no certification. The coin features the image of Mercury and has a denomination of 10 cents. There were 58,830,000 minted, and this particular coin is a great example of a machine error.