Collectible coins, particularly those from the United States, can hold significant historical and numismatic value. The 1926 Buffalo Nickel, known for its distinctive Indian head design on the obverse and a buffalo on the reverse, is a popular item among collectors. The three-dollar gold coin, though produced in limited quantities, is another noteworthy collectible representing a unique denomination in U.S. coinage. Both types showcase important aspects of American history and craftsmanship, making them sought-after pieces for numismatists.