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1866 (S) Seated Liberty Half Dollar - Motto

Strike Type
1866 (S) Seated Liberty Half Dollar - Motto

Coin Details

Year
1866
Denomination
Half Dollar
Mint Mark
S
Strike Type
Regular Strike
Series
Seated Liberty Half Dollars 1839-1891
Designer
Thomas Sully/Christian Gobrecht
Mintage
994,000
Composition
90% Silver, 10% Copper
Weight
12.4g
Diameter
30mm
Edge
Reeded

Value Estimates

$96 - $2,790

Values as of May 2026 — estimates reflect typical grades (G-4 through MS-67). Coins in lower or exceptional grades may fall outside this range.

Auction Record

$17,625 MS65+ 10-28-2021 Legend Rare Coin Auctions

Description

The 1866 (S) Seated Liberty Half Dollar - Motto is a half dollar produced at the San Francisco Mint as part of the Seated Liberty Half Dollars 1839-1891 series. Total mintage reached 994,000. 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, while the reverse displays a heraldic eagle with shield on breast, olive branch and arrows in talons, with a banner reading E PLURIBUS UNUM. Designed by Thomas Sully/Christian Gobrecht. Struck in 90% silver, 10% copper, weighing 12.4 grams, 30 mm in diameter, with a reeded edge. Cataloged as PCGS #6320. The Seated Liberty Half Dollar was produced over more than 50 years across multiple subtypes reflecting weight changes and motto additions. Carson City Mint issues are especially sought after. The 1878-S is a condition rarity, and the 1853-O "No Arrows" is extremely rare with only four known.

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