So-called dollars are a type of collectible coin that were issued primarily as commemorative items, often minted to celebrate events, people, or places in American history. They typically feature a denomination of $25 and often include design elements reflecting their commemorative purpose. The Hibler and Kappen reference is a comprehensive catalog that details these coins, providing information on their history, design, and rarity among collectors. Collectors seek out these coins for their artistic value and historical significance, making them an intriguing segment of American numismatics.

Item Denomination Series Year Mint
United States of America 1881 N/A So-Called Dollars - Hibler & Kappen $25 $25 (Twenty Five Dollars) So-Called Dollars - Hibler & Kappen 1881 N/A