This coin is a 2000 Lincoln Cent featuring the Memorial reverse design, minted at the San Francisco Mint, with an 'S' mint mark indicating its origin. As a proof coin, it was struck with a higher level of detail and a polished finish, which enhances its visual appeal. Composed of copper-plated zinc, this one-cent piece has a diameter of 19 mm and weighs 2.5 grams. The production of this particular proof coin was limited, with a total mintage of 4,047,993, making it more collectible than its business-strike counterparts. The Lincoln Cent is a long-standing symbol of American currency, and its Memorial reverse design pays tribute to Abraham Lincoln, the 16th President of the United States. Given its pristine condition—characteristic of proof coins—it is likely to attract interest from both coin collectors and those who appreciate its historical significance. The coin represents not just a denomination of currency but also a piece of numismatic history, reflecting the craftsmanship of the San Francisco Mint.