Collectible coins refer to coins that are valued not only for their face value but also for their rarity, historical significance, and condition. One notable example is the 1928 One Cent Penny from the United States, which is particularly sought after by collectors due to its unique characteristics. The time period of U.S. sovereignty over the Philippines also introduced various coin designs that reflect the cultural and political context of that era. Each of these collectible coins can hold significant appeal for numismatists and investors alike.

Item Denomination Series Year Mint
United States of America 1928 N/A Philippines Under U.S. Sovereignty 1¢ 1¢ (One Cent, Penny) Philippines Under U.S. Sovereignty 1928 N/A