Numismatic

2017-S ATB Quarter Effigy Mounds National Proof (Silver)

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The 2017-S Effigy Mounds silver quarter offers a fascinating look at ancient American earthworks, rendered in a highly detailed proof finish. Struck at the San Francisco Mint, this modern twenty-five cent piece contains 0.17875 troy ounces of 90 percent pure silver. The coin is a beautiful marriage of precise metal craftsmanship and a design that honors a unique cultural landscape. On the reverse, the coin features a striking aerial perspective of the Marching Bear Group, depicting the famous prehistoric mounds located in Iowa. The design is framed by the inscriptions EFFIGY MOUNDS, IOWA, 2017, and the traditional motto E PLURIBUS UNUM. This bird's-eye view captures the scale and shape of the ancient mounds, creating a powerful visual narrative on a small canvas. The obverse of the coin carries the classic portrait of George Washington, originally designed by John Flanagan. Surrounding the president's profile are the familiar inscriptions UNITED STATES OF AMERICA, LIBERTY, IN GOD WE TRUST, and QUARTER DOLLAR. The small S mint mark is also visible, indicating its origin from the San Francisco Mint, known for producing exceptional proof strikes for collectors to study and appreciate.