1879-S

Sandwiched between the 1,739,000-piece 1878-S and the 836,000-piece 1880-S, this date sits inside a gentle three-year decline at the San Francisco facility, reflecting the ebb of West Coast bullion deposits as the post-resumption economy settled. As a Type 3 issue carrying the TWENTY DOLLARS reverse adopted in 1877, the date belongs to the maturest phase of Coronet design, when Mint engravers had refined the relief and the alignment of the legends. Despite a mintage exceeding 1.2 million, the coin is anything but a generic bullion piece, because survival patterns at San Francisco were dictated more by export demand to European banks than by what was struck.

The condition rarity profile reveals the paradox. Combined PCGS and NGC mint state populations are heavily weighted toward MS-60 through MS-62, with the curve dropping precipitously above that. In MS-63, properly graded examples from both services together total in the low double digits before resubmissions, and finer pieces are genuinely scarce. Heritage Auctions catalogued an 1879-S graded PCGS MS-64 in their September 2007 Long Beach Signature sale (lot 3851), where the population at that grade stood at one with none finer at the time. Strike quality follows the SF Type 3 pattern: generally sharp central detail, occasional softness on the eagle's neck feathers and the upper shield lines.

Provenance from the Saddle Ridge Hoard, unearthed in February 2013 in Northern California, gave this date a fresh wave of attention. Forty-three 1879-S pieces emerged from the buried cache, of which four graded mint state and one was tied for second-finest known at the time of Kagin's certification, a meaningful infusion considering how thin the upper-tier census had been. Saddle Ridge coins were typically pedigree-encapsulated, and that label tends to add a modest premium beyond technical grade alone. For broader context on the design progression and the issuing mints across the run, see the Liberty Head Double Eagle series history.