This is a 1999 United States quarter from the State & Territorial Quarters series, specifically featuring the San Francisco mint mark (S). It is a proof coin, which means it was struck using a specialized process to create a high-quality finish, characterized by its mirror-like background and sharp details. The coin showcases a denomination of 25 cents, commonly known as a quarter, and has a diameter of 24.3 millimeters and a weight of 5.67 grams. The composition consists of Copper-Nickel clad Copper, ensuring durability while maintaining aesthetic appeal. With a total mintage of 3,713,359, this quarter is a notable piece of numismatic history. The coin reflects the design and identity of the United States, representing the various states and territories as part of a larger initiative to honor the nation's heritage. Due to its proof status, condition, and limited mintage, collectors often seek this coin, making it a valuable addition to any numismatic collection. The coin is part of a broader celebration of American statehood, intended to inspire pride in the diverse history of the United States.
| Country | United States of America |
| Year | 1999 |
| Serie | State & Territorial Quarters |
| Denomination | 25¢ (Twenty Five Cents, Quarter) |
| Mint | San Francisco |
| currency | USD |
| currency-amount | 0.25 |
| diameter | 24.3 |
| height | 0 |
| material | Copper-Nickel clad Copper |
| mint-mark | S |
| mintage | 3713359 |
| type | Coins |
| weight | 5.67 |
| width | 0 |
| year-display | 1999 |