MCPON Joe Campa Challenge Coin. Has always been in a protective plastic case. Please ask questions before purchasing. Serious inquiries only, please. The item “Master Chief Petty Officer of the Navy (MCPON) Joe Campa Challenge Coin” is in sale since Monday, March 26, 2018. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “navygirldoc” and is located in Memphis, Tennessee. This item can be shipped to United States.