1884-S

San Francisco struck 564,969 dimes for 1884, the first of the three S-mint Key Dates that close the Seated Liberty series before the 1892 Barber redesign. The mintage falls well below the parent mint's 3,365,505-piece Philadelphia delivery for the year, and it places the issue at the bottom tier of post-1880 San Francisco dime production alongside the 1885-S and 1886-S that follow. The 1884-S is a Legend, No Arrows issue under the 1873 weight standard of 2.50 grams, with the S mintmark positioned inside the wreath on the reverse, below the bow, in the standard placement the branch had used continuously since the resumption of its dime program in 1856. Working-stock demand on the West Coast drove the run; survival is what made the date a Key.

Strike quality is solid for a branch-mint issue, with most documented examples showing acceptable central detail on Liberty's head and the upper shield, though the rim definition and wreath ribbon can run soft on coins from later working-die states. The genuine collecting story is condition rarity rather than absolute rarity. Survivors cluster heavily in Good through Fine, where heavy West Coast commerce wore the coin through the 1880s and 1890s, with Very Fine and Extremely Fine examples scarce, About Uncirculated coins genuinely difficult to source, and Mint State pieces approaching apex condition rarity for the closing-decade San Francisco run. PCGS, the Professional Coin Grading Service, and NGC, the Numismatic Guaranty Company, population reports confirm the steep drop above mid-circulated grades; certified gem Mint State examples surface at major auctions infrequently. Authentication relies on the 2.50-gram weight, 17.9-millimeter reeded edge, and the S mintmark placement and shape; the standard counterfeit threat on the date is an S added to a Philadelphia 1884 to capture the substantial branch-mint premium, and certification by a major grading service is the working standard for any purchase above Very Fine.

For collectors, the 1884-S is one of the three required San Francisco Keys for completing a date-and-mint Seated Dime set, alongside the lower-mintage 1885-S and the parallel 1886-S. Circulated examples through Fine command meaningful premiums over generic Seated dime pricing, and any coin offered above Extremely Fine warrants certified status as a non-negotiable verification step. The Key Date classification reflects the combination of low survival and high collector demand from set-completion buyers, and that combination has been stable for decades. For the broader story of Gobrecht's design, the 1892 Barber Dime transition, and the series' production arc, see the Seated Liberty Dime series history.