10 Most Valuable Mercury Dimes in the Worldīelow, I have listed the most valuable mercury dimes in existence. The circulated coins are regular coins used in everyday life, the about uncirculated coins are coins never used but with signs of wear, and the uncirculated coins were never used and have no signs of wear, also known as mint state, or MS. Throughout this article, we’ve seen plenty of MS 66 and 67 coins, but what other grades of coins are there? The Sheldon Scale divides coins into three categories and 70 grades: circulated (grades 1-45), about uncirculated (50-59), and uncirculated (60-70). They are actually made of 90% silver, according to JM Bullion. No, Mercury dimes are not made of Mercury. 10 Most Valuable Mercury Dimes in the World.
