What are Challenge Coins?
Wikipedia defines a challenge coin as “A challenge coin is a small coin or medallion, bearing an organization’s insignia or emblem and carried by the organization’s members. Traditionally, they might be given to prove membership when challenged and to enhance morale. They are also collected by service members and law enforcement personnel. Historically, challenge coins were presented by unit commanders in recognition of special achievement by a member of the unit. They could also be exchanged in recognition of visits to an organization. Modern day challenge coins may feature popular culture attributes or organizational values.”
The reality is, challenge coins are physical proof of hard fought relationships.
For more info, 99% Invisible does a great job of describing the history and usage of challenge coins.
Check out the Podcast