The coin in question is a 1915 Barber Quarter, a notable piece of American numismatic history. It was minted at the Philadelphia Mint and carries the "P" mint mark. This quarter is part of the Barber series, designed by renowned engraver Charles Edward Barber, and showcases his artful depiction of Liberty on the obverse side along with a classic eagle design on the reverse. Measuring 24.3 mm in diameter and weighing 6.25 grams, the coin is composed of 90% silver and 10% copper, which contributes to its value and desirability among collectors. The 1915 Barber Quarter had a mintage of 3,480,000 coins, making it a relatively common date within the series but still a worthwhile addition for collectors focused on this iconic design. Whether you're interested in its historical significance, its numismatic value, or simply appreciate the craftsmanship of American coins, the 1915 Barber Quarter stands as a testament to early 20th-century coinage. As with all coins, its condition greatly affects its market value, which can vary widely based on grading standards.