1878-S

The 1878-S, at 9,774,000 pieces, opened the San Francisco Morgan Dollar run with the largest first-year S-mint output and one of the cleaner-struck inaugural-year issues across the three operating mints. San Francisco received only the Reverse of 1879 hub configuration from Philadelphia and did not produce a Reverse of 1878 subtype, so all 1878-S coins carry the rounded-breast eagle reverse that became the standard for the rest of the series. The Bland-Allison Act of February 1878 had directed Treasury to begin large-scale silver dollar coinage, and San Francisco's share of the inaugural-year production order was sized to absorb the Comstock Lode silver bullion that the Western mint had been receiving from regional mining operations.

Strike quality on the 1878-S is generally sharp, with Liberty's hair detail and the eagle's central feathers coming up cleanly on most coins from early die states. Most surviving examples grade MS62 to MS65 from broken Treasury bag releases of the 1950s and 1960s, with PCGS, the Professional Coin Grading Service, and NGC populations clustering at MS63 and MS64. MS65 examples are widely available and MS66 represents a meaningful condition tier. The 1878-S avoids the strike-quality issues that would later define many San Francisco Morgan Dollars from the mid-1880s and 1890s, since the inaugural-year dies operated under fresh tolerances and the broader S-mint strike-quality profile had not yet developed into the late-period pattern.

The 1878-S is a regular common date and an inexpensive S-mint Morgan acquisition in MS64 or MS65. Pricing has held flat for two decades at small premiums above the 1878 Philadelphia issues. The 1878-S anchors the entry-grade S-mint Morgan pickup alongside the 1879-S and 1880-S, all three of which combine large mintages with strong typical strikes and produced consistently sharp Mint State examples from the post-1962 Treasury bag releases that supplied most of the modern collector market. For the Bland-Allison Act backdrop and the broader 1878-1921 series history, see the Morgan Dollar series history.