1866 (S) Seated Liberty Quarter
Strike Type
Coin Details
Value Estimates
Values as of May 2026 — estimates reflect typical grades (G-4 through MS-63). Coins in lower or exceptional grades may fall outside this range.
Auction Record
$97,750 MS66 05-28-2008 Heritage Auctions
Description
Produced at the San Francisco Mint, the 1866 (S) Seated Liberty Quarter is part of the Seated Liberty Quarters 1838-1891 series. With a mintage of 28,000, this is a scarce issue — the higher-mintage of the two mint variants, representing 63% of production. The obverse features Liberty seated on a rock, holding a pole surmounted by a Phrygian liberty cap in her left hand and a shield inscribed LIBERTY in her right and the reverse displays a heraldic eagle with shield on breast, olive branch and arrows in talons, with a banner reading E PLURIBUS UNUM. Motto "IN GOD WE TRUST" added to the reverse above the eagle. Coined at the San Francisco Mint, which transitioned from Gold Rush-era production to its modern role producing proof and collector issues. Estimated market value ranges from $623 to $17K depending on grade and condition. Struck in 90% silver, 10% copper, weighing 6.2 grams, 24.3 mm in diameter, with a reeded edge. Cataloged as PCGS #5469.
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