So-Called Dollars are a type of collectible coin that emerged primarily in the United States, often commemorating significant events, individuals, or anniversaries. The term originated from the 19th century, as these pieces were not officially minted as currency and were intended for souvenir or artistic purposes. Among the earliest examples are medallions and tokens dating back to 1775, which reflect the historical context of the American Revolutionary War. The 1 One Dollar denomination often serves as a common reference point in the classification of these pieces, highlighting their value and recognition among collectors.