Mintage: 22,220,000 Philadelphia – 4,080,000 Denver – 5,058,000 New Orleans – 3,178,470 San Francisco

Metal Composition: 90% Silver – 10% Copper

Weight: 2.5 grams

Potential Value: $4 – $700

Diameter: 17.9 mm

Mints: Philadelphia, New Orleans, Denver, San Francisco

The 1907 Mercury dime has to valuable mintmarks. The (S) and the (D) are both worth about $700 for dimes rated MS-63. The other two mintmarks are worth $190-$325 for similar MS-63 condition coins.