1902.O Barber Dime: Early Silver Dimes
.Mintage: 4,500,000
.Minted at: New Orleans
.Designer - Engraver: Charles E Barber
.Metal Composition: 90% Silver - 10% Copper
.Finesse: 0.900
.Diameter: 17.9 mm
.Mass / Weight: 2.5 grams
.Thickness: 1.2 mm