1988-S 1 oz Proof Silver American Eagle (w/Box & COA)

Step back into the early years of the Silver Eagle program with the 1988-S 1 oz Proof Silver American Eagle, struck at the historic San Francisco Mint. Containing 1 troy ounce of .999 fine silver, this proof coin displays sharp frosted devices against luminous mirror-like fields, perfectly framing one of America’s most beloved designs. Housed in its original U.S. Mint presentation box and paired with an official Certificate of Authenticity, this edition remains an outstanding choice for collectors of U.S. modern proofs.

The San Francisco Mint, established in 1854 to process gold from California’s Gold Rush, quickly earned a reputation for precision and innovation. Nicknamed “The Granite Lady” after its second building survived the 1906 earthquake, the Mint has been integral to U.S. coinage for more than a century and a half. By the 1980s, San Francisco had become the birthplace of the Proof Silver Eagle, producing early issues—like this 1988 example—with exceptional clarity and finish.

• Metal Content: 1 troy oz of .999 fine silver
• Finish: Proof
• Mintage Year: 1988
• Face Value: $1 USD, fully backed by the U.S. government
• Mint: San Francisco (“S” mintmark)
• Packaging: U.S. Mint display box with Certificate of Authenticity
• Obverse: Adolph A. Weinman’s legendary Walking Liberty shows Lady Liberty draped in the American flag, striding toward the sunrise with oak and laurel branches in her arm. Inscriptions include “LIBERTY,” “IN GOD WE TRUST,” and the year of issue.
• Reverse: John Mercanti’s heraldic eagle grasps an olive branch and arrows while a shield rests at its center. Thirteen stars arch above, representing the original colonies. The “S” mintmark confirms its San Francisco origin.