Iconic Design – The obverse features Adolph A. Weinman’s Walking Liberty, originally from the 1916–1947 half dollar, while the reverse showcases John Mercanti’s heraldic eagle with a shield, clutching arrows and an olive branch.
San Francisco Mint Issue – The “S” mintmark on the reverse identifies it as a San Francisco Mint proof strike, part of the U.S. Mint’s prestigious proof Silver Eagle series.
Limited Mintage & Rarity – Only 511,925 proof Silver Eagles were struck in 1991, making it a relatively lower-mintage year compared to later issues.
Proof Quality & Cameo Contrast – As a proof coin, the 1991-S Silver Eagle features deeply mirrored fields and frosted devices, with many exhibiting strong Cameo (CAM) and Deep Cameo (DCAM) contrast.
Original Packaging – Coins were originally sold by the U.S. Mint in a blue velvet case with a certificate of authenticity (COA). Those with original packaging tend to hold higher collector appeal.
Market Trends & Investment Potential – Proof Silver Eagles, particularly older San Francisco Mint issues, have shown strong long-term demand among collectors and investors.
Common Issues & Preservation – Ensure proper storage in airtight holders or original mint capsules to prevent toning or spotting, which can affect value.
Where to Buy and Sell – The 1991-S Silver Eagle Proof is available through numismatic dealers, auction sites (Heritage, Stack’s Bowers, GreatCollections), and online marketplaces (eBay, APMEX, JM Bullion).
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