SOLD/1877Eagle Mintage: Circulation strikes: 397,650 Proofs: 20 Designer: James Barton Longacre Diameter: ±34 millimeters Metal content: Gold - 90% Other - 10% Weight: ±516 grains (±33.4 grams) Edge: Reeded Mintmark: None (for Philadelphia, PA) below the eagle's tail on the reverse