1908-S

The 1908-S Indian Head Half Eagle is the San Francisco entry in the design's debut year, and it has the smallest mintage of the three 1908 issues. Just 82,000 pieces left the mint, against millions struck that same year in Philadelphia and Denver. Bela Lyon Pratt's incuse portrait was brand new to American gold coinage, and San Francisco's modest output gave the issue a built-in scarcity that has held up across more than a century of collecting.

For a first-year coin, the 1908-S tends to come better struck than some later San Francisco half eagles in the series, where weak mintmarks are a recurring complaint. The S itself sits inside a recess and is usually clean and full when present, since incuse-design coins resist the kind of mintmark tooling that plagues raised-design rarities. Authentication still rests on the basics. Weight should run very close to 8.359 grams, diameter 21.6 mm, with the 90% gold alloy producing a specific gravity near 17.2. The portrait, headdress feathers, and reverse eagle should all sit below the field rather than above it; any sign of the design standing proud is an immediate red flag. Edge reeding should be crisp and evenly spaced.

Today the 1908-S trades on its mintage and its status as the lowest-production member of the 1908 trio. Circulated examples in VF to AU appear at major auctions throughout the year and remain attainable for series collectors. Mint State coins are scarcer than the headline mintage might suggest, partly because a portion of the original delivery moved into long-term holdings rather than circulation. High-grade survivors carry strong premiums; a PCGS MS68 example realized $192,000 at Heritage in September 2020. Most collectors encounter the date in the AU to lower-Mint-State range, where it serves as one of the more affordable keys to a complete San Francisco run. For broader context on the type's short twenty-one-year life, see the Indian Head Half Eagle series history.