1870

The 1870 Seated Liberty Quarter marks the first clear recovery year in Philadelphia output after the Reconstruction-era trough, with a delivery of 87,400 pieces, more than five times the 16,600 figure of 1869. The coin was struck on the 6.22-gram weight standard set by the Coinage Act of February 21, 1853 and belongs to the 1866-1873 With Motto subtype, with the scroll reading "IN GOD WE TRUST" above the eagle's head on the reverse. 1870 was also the year the Carson City Mint opened in Nevada to coin Comstock silver, and the first 1870-CC quarter joined the year's roster as a separate, far rarer issue. The Philadelphia coin remains the workhorse delivery for the date, though its mintage is still modest by parent-mint standards.

What grades and authenticates an 1870 starts with the reverse motto, which must be complete, properly placed on its scroll, and undisturbed at the boundaries. The reverse field below the eagle must show no mintmark; a CC mark there would indicate the Carson City issue, an S would indicate San Francisco, and any added mintmark on a Philadelphia coin is a documented fraud pattern aimed at fabricating a branch-mint rarity. The drapery at Liberty's elbow should be cleanly defined, and strike is generally average for the period with occasional softness on the eagle's right leg and upper shield lines. Weight on a genuine planchet falls within tolerance of 6.22 grams. Larry Briggs catalogs the working die marriages for the year, and a certified holder remains the practical safeguard whenever the price approaches a meaningful multiple of generic type.

For a date-set builder, the 1870 is the most available of the four Philadelphia quarters between 1866 and 1870 and the natural starter date for collectors working through the early With Motto Philadelphia run. The site catalog carries the issue at the Regular tier, reflecting its position as the entry-level Philadelphia coin of the immediate postwar recovery rather than a true Semi-Key. The issue surfaces in Very Good through Fine with regularity and becomes scarce in About Uncirculated and above. Mint State coins are condition scarce, and original-skin examples with clean fields trade at modest premiums to dipped competition. For the broader story of Gobrecht's design, the 1866 motto addition, and the series' production arc, see the Seated Liberty Quarter series history.