This coin is a 1971 Lincoln Cent, produced by the San Francisco Mint, identifiable by its "S" mint mark. It is part of the Lincoln Cents series featuring the Memorial Reverse design, which showcases a depiction of the Lincoln Memorial on the back. The coin is made of brass, weighing approximately 3.11 grams and has a diameter of 19 mm. With a total mintage of 525,133,459, this particular penny is typical of those produced during the early 1970s. The coin carries a denomination of one cent (1¢), and its currency value is USD, specifically reflecting its worth as a small denomination in American currency. While the physical dimensions are noted as zero for width and height, these are not typically measured for coins. Overall, this 1971 Lincoln Cent represents an essential piece of American numismatic history, reflecting the ongoing appreciation for the legacy of President Abraham Lincoln and the enduring nature of U.S. currency.