Sparta Blog : USA
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 are given to prove membership when challenged and to enhance morale.
Please see email below from Clyde Roberts, he is with Sparta Pewter. I met his company representatives last year when I attended Career Counselor Symposium. They have provided outstanding service to all branches, however, in particular Navy/Marine Corps, with regards to Navy/Marine Corps Ball and HM Ball. Prices are very reasonable when ordering 100 and over.