Collectible coins, particularly in the context of the United States, often include commemorative issues, historical coins, and special mint sets. The "One Dollar" denomination has a rich history, featuring prominent designs such as the Peace Dollar and the Eisenhower Dollar. Proposed national issues in 1776 played a significant role in the early development of American currency, reflecting the nation’s values and historical milestones. Collectors often seek coins from this era for their numismatic value and historical significance.