So-Called Dollars are a type of commemorative medal or token primarily associated with the United States, often referencing events, places, or significant people. They are typically not legal tender but were produced for souvenir purposes or to commemorate events from the 19th and early 20th centuries. The Hibler-Kappen catalog is a commonly referenced guide for collectors, detailing various So-Called Dollars by number, description, and rarity. The term "unknown" may refer to pieces in the catalog that lack complete documentation or attribution. The year 1825 is significant as it marks the issuance of some early examples in this category, though specifics may vary.

Item Denomination Series Year Mint
1825 Ny Hk-1000a Erie Canal Completion Sc$1 Ms Other / Varied So-Called Dollars - Hibler & Kappen 1825 Unknown