1912

Philadelphia produced 149,824 double eagles dated 1912, the first year of the 48-star obverse configuration that replaced the 46-star design carried through 1907-1911. The two additional stars reflect the January 6, 1912 admission of New Mexico and the February 14, 1912 admission of Arizona as the 47th and 48th states, and the Mint prepared new obverse hubs to incorporate the updated count ahead of the year's production. The hub change is the single distinguishing feature of 1912 as a type-coin year. No mint mark appears because Philadelphia coins of the series carry none. Matte Proof specimens were also struck at Philadelphia in 1912 as part of the 1908-1915 program, in quantities running around 74 pieces. The 1912 production is modest by Philadelphia standards and one of the lower outputs in the series at the parent mint.

Strike quality on 1912 Philadelphia is typical for the parent mint's Motto-era production: central detail on Liberty's torch, drapery, and the eagle's breast feathers comes up cleanly on most examples. The new 48-star obverse shows clean separation between stars on early-state examples; later die-state coins can show softness in the star tips, particularly in the lower arc where die wear concentrated. Wear on circulated examples follows the series pattern, with Liberty's forward knee and breast and the eagle's breast and leading wing first to show friction. Grade distribution favors AU and lower Mint State grades, with MS65 and above genuinely scarce relative to the already modest mintage. Counterfeit risk is elevated for 1912 compared to higher-mintage common-date Saint-Gaudens issues, given the coin's smaller surviving population; PCGS or NGC certification is the standard acquisition safeguard. Examples with original surfaces and sharp star definition command the full market; cleaned or polished coins trade at noticeable discounts.

Market position for 1912 Philadelphia sits firmly in the semi-key / better-date tier of the series, earning that position through a combination of its modest mintage and its genuine first-year-of-48-star-type status. Type-set collectors targeting a 48-star Saint-Gaudens obverse often choose the 1912 over later 48-star Philadelphia issues, because the first-year status carries its own collector weight. Pricing in circulated grades sits at a meaningful step above common-date Saint-Gaudens in the same grade, with the premium expanding through AU and into Mint State. MS65 and finer examples carry registry-set premiums that reach well into five figures for the top-tier grades. European bank hoard returns supplied a smaller proportion of the surviving Mint State population for 1912 than for the common-date S-mints, which is part of why the date retains a firmer price floor than mintage alone would suggest. Acquisition is certified only. For the broader context of the 1912 hub change and the series' production arc, see the St. Gaudens Gold $20 Double Eagles history article.