Collectible coins encompass various types, including commemorative coins, bullion coins, and specific issues like So-Called Dollars, which refers to tokens or medallion issues that commemorate specific events or anniversaries. The "Hibler-Kappen" reference denotes a catalog that classifies these So-Called Dollars, with the 1984 edition featuring numerous pieces. In the context of the United States, these collectible items often include the iconic "One Dollar" coins, which may hold historical significance or appeal to numismatists. The designation "N A" typically indicates that a specific coin is not available or has not been graded by a major numismatic grading service.