1878 Proof Seated Liberty Dime
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
$4,290 PR65 08-10-1990 RARCOA
Description
The 1878 Proof Seated Liberty Dime is a proof dime struck at the Philadelphia Mint, part of the Seated Liberty Dimes 1837-1891 series. With a mintage of 800, this is an extremely rare issue — the lowest mintage among 3 mint variants, representing only less than 1% of total 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 an agricultural wreath enclosing the denomination (through 1859) or a wreath enclosing ONE DIME with the inscription UNITED STATES OF AMERICA (1860-1891). Struck during the Gilded Age of rapid industrialization and the great silver debates, when monetary policy shaped elections and economic destiny. As a proof issue, this coin was struck multiple times on specially prepared polished planchets using polished dies, producing mirror-like fields and frosted design elements prized by collectors. Struck at the original U.S. Mint facility, in continuous operation since 1792. Estimated market value is approximately $726. Struck in 90% silver, 10% copper, weighing 2.5 grams, 17.9 mm in diameter, with a reeded edge. Cataloged as PCGS #4775.
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