SAR Challenge Coin
The origin of the Challenge Coin, like many other aspects of military tradition, is a matter of much debate, and many organizations and services claim to have originated it. [Read more on the coin’s background by searching “challenge coin” on the Internet.] It became tradition to ensure that all members (of an organization) carried the medallion at all times. This was accomplished via a challenge: a challenger would ask to see the medallion (of a fellow member), and if he could not produce his own coin, he would be required to buy the drink of choice for the challenger. If the challenged member did produce a coin, then the challenger was required to buy the drink. Coin measures 1¾" in diameter and is 1/8" thick.