This 1931-D Mercury Dime is a rare find for collectors. With a semi-key design and a better date, this coin is sure to be a valuable addition to any collection. The coin has been circulated and is composed of 0.9 fineness silver, making it a unique piece of American history. The strike type is business and the coin was minted in Denver, United States. The coin is ungraded and uncertified, but its rarity and historical significance make it a must-have for any coin collector. This Mercury Dime is a great addition to any collection and is sure to impress.