The Seated Liberty Half Dollar is a silver coin that was produced by the United States Mint from 1839 to 1891. The 1842 Seated Liberty Half Dollar, which features the iconic depiction of Liberty seated with a shield and a cap, is particularly sought after by collectors. The coin is composed of 90% silver and 10% copper, giving it a distinctive weight and quality. Collectors value these coins not only for their silver content but also for their historical significance and the artistry of their design.