CoinWorldTV 1866, United States. Beautiful Copper-Nickel 3 Cents (Trime) Coin. Mint Year: 1866 Reference: KM-95. Designer: James B. Longacre Denomination: Nickel 3 Cents (Trime) Material: Copper-Nickel Diameter: 18mm Weight: 2.21gm Obverse: Coronet head of lady Liberty left. Legend: UNITED STATES OF AMERICA / 1866 Reverse: Roman numeral (III) within wreath. The copper- ...