1888-S

The 1888-S, at 657,000 pieces, is one of the lowest San Francisco Morgan Dollar mintages of the late 1880s and a Semi-Key issue that pairs with the 1886-S as the bridge between the high-volume 1879-1882 S-mint output and the 1893-S apex Key. The figure represents the smallest 1880s S-mint output and reflects Treasury's continued redirection of silver allocations away from San Francisco. The 1888-S carries the standard Reverse of 1879 hub configuration with no major sub-varieties anchoring the year's specialist collecting. The sub-million mintage produced limited Treasury bag distribution.

Strike quality on the 1888-S is generally sharp on early-die-state examples, with Liberty's hair detail and the eagle's central feathers coming up cleanly on most coins. Most surviving examples grade VF to MS63 from circulation and limited Treasury bag releases, with PCGS, the Professional Coin Grading Service, and NGC populations clustering at MS62 and MS63. MS64 examples are scarce and MS65 is genuinely rare; MS66 and above is among the toughest pickups in the late-1880s S-mint series. The 1888-S did not see major Treasury bag releases the way other S-mint Morgans did, leaving the surviving Mint State population correspondingly thin across the certified-pop distribution.

The 1888-S is a Semi-Key issue and a serious condition-rarity acquisition for collectors building a high-grade S-mint Morgan run. Pricing trades at meaningful premiums across all grades, with the gap to MS64 widest because of the limited gem-grade pool. The 1888-S pairs with the 1884-S and 1886-S as the mid-1880s S-mint Semi-Key trio that anchors the difficult-pickup tier of an upper-Mint-State S-mint date set. Treasury bag releases of the 1950s and early 1960s anchor the modern certified-pop survival profile for San Francisco Morgan dates, with PCGS and NGC populations reflecting bag-distribution patterns rather than pre-1950 collector preservation. Registry-set collectors target the upper Mint State tier where strike quality and surface preservation become the limiting factors on assigned grades. For the broader S-mint condition-rarity pattern, see the Morgan Dollar series history.