So-called dollars are a category of novelty or commemorative coins that were often created to mark significant events or to celebrate organizations and individuals. The term "so-called dollar" typically refers to pieces that are not official currency but are similar in size and design to U.S. silver dollars. The Hibler-Kappen catalog, established by authors Hibler and Kappen, catalogs these items and includes various types issued, including those from 1901, which may commemorate events such as the Pan-American Exposition. Collectors of these items value them based on historical significance, rarity, and condition.

Item Denomination Series Year Mint
1901 Hk-131 Evacuation Of Boston Sc$1 Ms Other / Varied So-Called Dollars - Hibler & Kappen 1901 Unknown