This is a beautiful Michigan State Police challenge coin. Coin is about 1 9/16" in diameter and raised lettering on both sides and gold plated with a reeded edge. Reverse side has St. Michael the Protector, Patron Saint of Law Enforcement. Coin is contained in an air tight holder.

The Michigan State Police (MSP) is the state police agency for the state of Michigan. The MSP is a full-service law enforcement agency with its sworn members having full police powers statewide.

The department was founded in 1917 as a wartime constabulary and eventually evolved into the modern agency that it is today. The department's entry-level members are called "Troopers". Its headquarters is in the state capital, Lansing.