Numismatic

2017-S ATB Effigy Mounds Monument BU (Enhanced Finish) SP-70 NGC

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The 2017-S Effigy Mounds National Monument quarter represents a distinctive entry in the America the Beautiful series. Struck at the San Francisco Mint, this copper-nickel clad coin features a specialized enhanced finish that highlights the subtle details of its design. It has been graded at a perfect Specimen 70, indicating a flawless strike and pristine surface preservation that showcases the coin as the engravers intended. The reverse design honors the sacred prehistoric earthworks of Iowa, depicting animal-shaped mounds rising from the landscape under a canopy of trees. The inscriptions on this side read "EFFIGY MOUNDS," "IOWA," and the traditional national motto "E PLURIBUS UNUM," alongside the year of issue, 2017. On the obverse, the familiar portrait of George Washington is accompanied by the inscriptions "UNITED STATES OF AMERICA," "LIBERTY," "IN GOD WE TRUST," and the denomination "QUARTER DOLLAR." The "S" mint mark is clearly visible, denoting its origin from the historic San Francisco facility, making this specimen a fascinating study in modern minting techniques.