About five years ago, the first of these Mercury/Libertys Dimes became one hundred years. Stackers and holders, of these beauties, can look forward to twenty-five years of one-hundred year birthdays, each year, until the year 2046, when all Mercury Dimes will be over one century old. Only no birthday-celebrations, in 2022, 32, 33, for no US Dimes were minted those years a century earlier. Thanks for showing, the fractional treasures, @goldkey.