So-Called Dollars are a type of commemorative coin or token that typically represent events, individuals, or institutions, and are often made in non-circulating metal compositions. They were popular during the late 19th to early 20th centuries, particularly in connection with exhibitions and significant anniversaries. The Hibler-Kappen catalog is a key reference for collectors of these items, providing comprehensive listings and identification for various types. The "1854 N A" designation generally refers to a specific piece that may have been issued during that year and may not have a designated mintmark, indicating that it does not belong to a specific U.S. mint.