1866-S Motto

The 1866-S Motto half eagle marks a transition year at the San Francisco Mint, the first SF Coronet five with IN GOD WE TRUST on the reverse. The Coinage Act of March 3, 1865 ordered the new motto onto the country's gold coinage, but the working dies were cut at Philadelphia and had to be shipped west. San Francisco opened 1866 production using leftover Type 1 No Motto dies, striking 9,000 pieces now catalogued as the 1866-S No Motto. Once the new dies arrived, the mint switched over and ran the balance of the year as Type 2 With Motto, delivering 34,920 coins. The two share a date and a city but are separate varieties, with this With Motto piece the more available of the pair and the inaugural Type 2 example from the western branch.

Authenticating an 1866-S Motto starts with the Coronet half eagle baseline: 8.359 grams on a calibrated scale, 21.6 mm in diameter, 0.900 fine gold, reeded edge. The decisive attribution check sits on the reverse. The motto IN GOD WE TRUST should appear in a small curved scroll directly above the eagle's head, with each letter cleanly punched. If the scroll is missing entirely, the coin is the rarer No Motto sister, not this issue. The S mintmark sits below the eagle and should match the small, neatly cut letterform used across SF gold of the period. Be wary of altered-date pieces re-engraved from common later With Motto SF dates, where the motto lettering often looks mushy or sits at the wrong angle.

Even with a mintage near 35,000, survivors are scarce in any grade and genuinely rare in mint state. PCGS and NGC together account for only a few hundred certified pieces, with most clustered in VF through AU and uncirculated coins counted on one hand. Doug Winter has flagged this date as a long-running condition rarity for the SF Coronet series, and auction records back that up, with PCGS MS62 examples crossing into the mid-five-figure range while attractive AU coins routinely clear five figures. For collectors building a date set of San Francisco half eagles, the 1866-S Motto is the more attainable half of the 1866-S pair but never easy in original problem-free condition. See the Liberty Head Half Eagle series history.