Challenge Coins (Colored Epoxy) have been a tradition that started in World War I and continues very strong today. In the beginning challenge coins were issued to battalions as symbols of camaraderie and unity. As time went on, the "challenge" of the challenge coin came in the ability to show your coin as proof of membership in a club or police/military unit.
Production times are very quick as well with our company, typically 2-3 weeks.