Collectible coins are numismatic items valued not only for their metal content but also for their historical significance, rarity, and condition. In the United States, coin types include various denominations and series, such as the Peace Dollar, which was minted from 1921 to 1935 to commemorate peace after World War I. The 1927 Peace Dollar, particularly the San Francisco mint issue (S mint mark), is highly sought after by collectors due to its limited mintage and appealing design, depicting a radiant Liberty on the obverse and an eagle on the reverse. The three-dollar coins, although not as commonly discussed, were also produced in limited quantities and can be significant in specialized collections.