The coin in question is a Seated Liberty Half Dollar, produced in 1877 at the Philadelphia Mint. This particular coin has a denomination of 50 cents and is composed of silver, with a weight of 12.5 grams and a diameter of 30.6 millimeters. The mintage for this year was 8,304,000 pieces, making it relatively accessible to collectors compared to other years in the series. The Seated Liberty design features a depiction of Liberty seated, holding a shield in one hand and a liberty cap on a staff in the other, symbolizing freedom and protection. The reverse showcases an eagle in a classic heraldic pose. The Philadelphia Mint mark 'P' identifies this specific coin's origin. In terms of grading and market value, this coin's worth can vary significantly based on its condition, ranging from circulated grades to uncirculated examples. Factors such as wear, toning, and strike quality will affect the overall grade and collectible value. The 1877 Seated Liberty Half Dollar remains a popular choice among numismatists, appealing to both historical enthusiasts and investors in silver coins.