1872-S

San Francisco produced 18,000 quarter eagles in 1872, a modest output that places the issue among the more difficult branch-mint dates of the immediate post-Civil War decade. Pacific Coast commerce had stabilized considerably by the early 1870s, but quarter eagles never achieved the workhorse status of larger gold denominations in the western economy, and most surviving 1872-S pieces show evidence of active circulation rather than the careful preservation typical of higher denomination gold from the period. Estimated survivorship today sits in the low to mid hundreds, with the bulk concentrated in well-worn grades and Mint State examples genuinely scarce.

Authentication should focus on the S mintmark below the eagle's tail feathers, where the genuine impression appears sharp and well-defined with clean serifs and a distinct interior loop. Counterfeit and altered-mintmark detection requires careful examination under angled light for tooling marks, solder lines, or planchet disturbance around the mintmark area, since common-date Philadelphia quarter eagles have historically been used as host coins for fraudulent S additions. The piece weighs 4.18 grams in 0.900 fine gold alloy, measures 18 millimeters across, and carries a reeded edge with coin alignment placing the reverse 180 degrees rotated from the obverse.

For collectors assembling complete San Francisco quarter eagle date runs, the 1872-S represents one of the genuine challenges of the decade and consistently trails only the lowest-mintage S-mint dates in difficulty. Market appearances cluster in the Very Fine through Extremely Fine range, with About Uncirculated coins commanding meaningful premiums and certified Mint State examples reaching levels that reflect true condition rarity rather than any promotional pressure. Buyers should require PCGS or NGC certification for any piece offered above mid-circulated grades, and patience pays off when waiting for an example with original surfaces and honest wear rather than a processed or problem coin. Cleaned and dipped pieces appear with regularity in dealer inventories, and even careful restoration leaves diagnostic traces that experienced graders flag immediately, so reviewing certified imagery from past auction sales builds the visual reference needed to evaluate offered material with confidence. See the full Liberty Head Quarter Eagle series history.