1867-S Liberty Head Gold $2.5 Quarter Eagle (Coronet Head)

San Francisco struck 28,000 quarter eagles in 1867, a figure that places the issue squarely in the middle of the western branch's Reconstruction era output for the denomination and well above its Philadelphia counterpart of the same year. The Pacific Coast economy continued to operate on a hard money standard while the eastern states worked through the protracted process of restoring specie payment, and small gold pieces remained genuinely useful in California commerce. The quarter eagle filled a transactional role alongside the larger half eagle and double eagle production from the same facility, with merchants, miners, and travelers all drawing on yellow metal coin for everyday purchases. Despite the moderate mintage figure, decades of active circulation in a working economy have produced a survival population that classifies the 1867-S in the semi-key tier for the date set, with most known examples grading in the Very Fine through Extremely Fine range and About Uncirculated pieces drawing premium attention.

Authentication of the 1867-S centers on the S mintmark beneath the eagle on the reverse, an area persistently targeted for alteration on scarce branch mint gold. The genuine punch shows uniform metal flow around the letter, sharply formed serifs, and crisp transition into the surrounding field, with the loops evenly defined and the position consistent with documented die placements for the year. An added mintmark, typically lifted from a sacrificed donor coin and applied to a Philadelphia host, betrays itself through tooling marks at the base, a slight raised collar around the perimeter, granular interior texture in the loops where a struck S would be smooth, or a vertical position that drifts measurably from standard placement. High-magnification comparison against verified reference images for the 1867 S punch is the most reliable single test. Standard weight runs 4.18 grams in 0.900 fine gold with specific gravity near 17.2, and the reeded edge should display consistent file marks throughout with no seam suggesting a cast counterfeit.

For the San Francisco gold collector, the 1867-S belongs in the harder middle tier of post-war branch mint quarter eagles. See the full Liberty Head Quarter Eagle series history.