2000-D $1 Sacagawea Dollar / South Carolina Quarter Mule MS64 PCGS. A Paul Gilkes front page story in the June 27, 2022 issue of Coin World astounded the numismatic hobby. More than 20 years after it was struck, a mule was reported that paired a Sacagawea dollar obverse and the statehood side of a 2000-dated South Carolina quarter. A mule is a coin struck from mismatched dies. The best-known mule, ranked #1 in the 100 Greatest U.S. Modern Coins reference, pairs the Washington obverse of a statehood quarter with a Sacagawea dollar reverse. An undated Philadelphia Mint product, it was discovered in 2000, the year the Sacagawea dollar was introduced. There are approximately 18 known examples of that mule, and when examples appear at auction, they routinely hammer down in excess of one hundred thousand dollars.