Collectible coins encompass a variety of numismatic items, including historical currency, commemoratives, and tokens. The United States has issued numerous collectible coins, such as the ten-dollar gold pieces and various commemorative coins celebrating significant events and states. Alaska tokens specifically refer to pieces created during the 1935 Alaska-Yukon-Pacific Exposition, which served as souvenirs and currency in some local commerce. These tokens often hold value for their historical significance and limited mintage.