A set of challenge coins minted by the state of Montana — and designed by a Montana State University student — are intended ...

One of the most popular is through collecting challenge coins. Challenge coins are signs of unity among die-hard riders, often intended to symbolize loyalty and shared experience within motorcycle ...

“So I went back to my military days. The Air Force has what’s called the Challenge Coin. You received it if you were going above and beyond the job requirements.” That began the wheels ...