The coin in question is a Seated Liberty Half Dollar minted in 1885 at the Philadelphia Mint, distinguished by its "P" mint mark. This particular piece belongs to the denomination of 50 cents and is made of silver, weighing in at 12.5 grams with a diameter of 30.6 millimeters. It falls under the category of coins and is classified as a proof production type, which indicates it was struck with a high-quality finish intended for collectors. With a mintage of only 930 pieces, this coin is not only a significant representation of the Seated Liberty series but is also relatively rare, making it of higher interest to numismatists and collectors. The detailed design features Liberty seated on a rock, holding a liberty cap in her left hand and a shield in her right, exuding a classic artistic elegance that defines this historic series. As a coin produced in proof quality, its pristine condition showcases the intricate details and luster that proof coins are known for, providing an exceptional example of 19th-century American coinage. Overall, this 1885 Seated Liberty Half Dollar is a coveted item for collectors, reflecting not only the artistry of its time but also its rarity and historical significance.