1. collectible items that resemble coins or medals but are not legal tender, such as tokens, badges, or commemorative pieces.
Usage: numismatics field; uncountable noun; often used in plural form

Examples

• Collectors of exonumia often seek rare tokens from defunct amusement parks.
• The museum's exonumia collection includes badges and medals from the early 20th century.
• Unlike coins, exonumia items have no face value and cannot be used as currency.
• She specializes in exonumia from transportation companies and trade fairs.
• Exonumia enthusiasts attend conventions to buy, sell, and trade their collections.