Collectible coins are items of interest to numismatists, often valued for their historical significance, rarity, condition, and demand among collectors. The United States has produced a variety of collectible coins, including the Half Cent, which was issued in various designs and materials until its discontinuation in 1857. During the period of United States sovereignty over the Philippines, coins were minted with American designs, including the notable 1908 Philippine coins. Collectors often reference grading classifications, such as "N A," indicating specific condition or grading assessments that can influence the coin's market value.