1991-S Proof Silver Eagle, 1 oz. — PCGS PR70

This exceptional 1991-S Proof Silver Eagle represents one of the finest examples of this classic American bullion coin. The "S" mint mark denotes production at the San Francisco Mint, which produced proof versions exclusively during the early years of the American Eagle program. Struck in one troy ounce of .999 fine silver, this piece showcases the iconic obverse design featuring Liberty and the reverse eagle design that has made the series a cornerstone of modern numismatics.

Graded PCGS PR70, this coin achieves the highest proof grade designation, indicating virtually perfect preservation with exceptional eye appeal. The pristine surfaces display the characteristic mirror fields and frosted devices expected of a perfect proof strike, with no visible imperfections even under close examination. The technical quality of the strike and preservation combine to make this an exemplary specimen of San Francisco's proof coinage from this period.

The 1991-S Proof Silver Eagle remains a popular choice among collectors building complete proof sets and silver specialists alike. PCGS Certification Number 9847 provides authentication and grade verification for this premium example.