1879-S

The 1879-S Liberty Head Half Eagle was struck at the San Francisco Mint with a reported mintage of 426,200 pieces, nearly tripling the prior year's SF output and signaling a clear shift in West Coast gold production. The increase reflected the Resumption Act of 1875, which restored full convertibility between paper currency and gold on January 1, 1879. With paper dollars again exchangeable for specie at face value, the federal government needed working stockpiles of gold coin in commerce, and the mints producing half eagles that year responded by ramping up output. San Francisco's role was important on the Pacific Coast, where gold remained the preferred medium of exchange. The 1879-S fits cleanly into the long, productive run of SF half eagles that began with the 1878-S rebound and continued through the end of the series in 1908.

Authentication of the 1879-S relies first on confirming the basic specifications. Genuine pieces weigh 8.359 grams, measure 21.6 mm in diameter, and are struck in a 90 percent gold, 10 percent copper alloy with a reeded edge. The S mintmark sits on the reverse below the eagle, and collectors should verify that the punch matches known San Francisco style for the period rather than a tooled or added mintmark moved over from a Philadelphia coin. Strike quality is typically average, with some softness on the eagle's neck feathers and on Liberty's hair curls above the ear. Surface contact marks from active circulation are common, so originality of color and the absence of cleaning often carry more weight than fractional grade differences when evaluating examples.

For modern collectors the 1879-S is one of the most accessible San Francisco half eagles of the With Motto era. Circulated pieces in Very Fine and Extremely Fine grades trade at modest premiums over gold content, making the date a practical entry point for collectors building a Coronet half eagle set or seeking a Type 2 With Motto representative from the western mint. About Uncirculated examples are obtainable with patience, and Mint State coins exist but are scarcer than the mintage figure suggests, since most pieces saw heavy use in Pacific Coast commerce. The 1879-S pairs naturally with the 1879 Philadelphia issue. Read the full Liberty Head Half Eagle series history.