Standing Liberty QuartersType 1 (1916-1917)Designer – Engraver: Hermon A MacNeil Metal Composition: 90% Silver – 10% CopperDiameter: 24.3 mm Mass / Weight: 6.25 gramsType 2 (1917-1930)Designer – Engraver: Hermon A MacNeil Metal Composition: 90% Silver – 10% CopperDiameter: 24.3 mm Mass / Weight: 6.25 grams