Collectible coins, particularly those from the United States, include a variety of denominations and themes. Half dollars, such as the 50-cent piece, feature various designs and mint marks, with the 1999 Denver mint issue being notable for its limited mintage and specific characteristics. These coins often attract collectors for their historical significance, rarity, and potential value appreciation over time. The term "Roll" typically refers to a set of coins wrapped in paper or plastic, usually containing 20 or 50 coins, making them convenient for both collectors and investors.

Item Denomination Series Year Mint
1999-D 50c Roll 20 Coins 50c Roll Half Dollars 1999 Denver