Barber Quarters, minted from 1892 to 1916, are a type of twenty-five cent coin produced by the United States. Designed by Charles E. Barber, the Barber Quarter features a portrait of Liberty on the obverse and an eagle on the reverse. These coins are significant among collectors due to their historical context and varying mintages, with particular dates and mint marks being highly sought after. The Barber Quarter is a key component of the broader series of Barber coins, which also includes dimes and half dollars.