Seated Liberty DimesType 4 – Legend on Obverse (1860-1873)Designer – Engraver: Christian Gobrecht Metal Composition: 90% Silver – 10% CopperDiameter: 17.9 mm Mass / Weight: 2.49 gramsType 4 Resumed – Legend on Obverse (1875-1891)Designer – Engraver: Christian Gobrecht Metal Composition: 90% Silver – 10% CopperDiameter: 17.9 mm Mass / Weight: 2.5 grams