Collectible coins and medals are valuable items sought after by numismatists and collectors. Coins, such as the United States One Dollar, often feature specific designs and mint marks that enhance their desirability. Disney medals, like those from 1988, commemorate significant events or anniversaries and are usually produced in limited quantities, making them attractive to fans and collectors. The designation "N A" may refer to a specific grading or certification status, indicating its condition or uniqueness in the collectible market.