This coin is an 1866 Shield Nickel, minted at the Philadelphia Mint. As part of the Shield Nickel series, it showcases the iconic design that represents the early years of U.S. coinage. The coin is made of a copper-nickel composition, providing a distinctive metallic luster. It has a diameter of 20.5 mm and weighs 5 grams, consistent with the specifications for nickels. The denomination is 5 cents, which is commonly known as a nickel. With a mintage of 14,742,500, this coin is relatively abundant, although its condition and specific features will significantly influence its value among collectors. The shield motif is emblematic of American heritage, featuring the representation of a shield on the obverse, symbolizing strength and protection. Its mint mark is "P," indicating it was produced in Philadelphia. The overall condition, such as its wear and any unique characteristics, will determine the coin's grading and ultimately its market value. The 1866 Shield Nickel stands as a piece of numismatic history, reflecting an important period in the evolution of U.S. currency.