So-Called Dollars are a type of collectible coin that refers to medals or tokens issued primarily in the United States, often commemorating events or places, and are typically larger than standard coins, featuring unique designs. The term was popularized by the Hibler and Kappen reference book, which catalogs these items, including many produced in 1915. The designation "Unknown" may refer to certain pieces in this category that lack clear historical provenance or documented issuers. Collectors often seek these items for their artistic merit and historical significance.

Item Denomination Series Year Mint
1915 Ca Hk-1030 Panama-Pacific Expo Gold Sc$1 Pf Other / Varied So-Called Dollars - Hibler & Kappen 1915 Unknown
1915 Ca Hk-399 Panama-Pacific Exposition Sc$1 Ms Other / Varied So-Called Dollars - Hibler & Kappen 1915 Unknown