5 x Notre Dame Navy Chief CPO challenge coin Condition is New. The item “Navy/Notre Dame Football Game, Navy Chief CPO challenge coin 5 Total Coins” is in sale since Monday, October 29, 2018. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “ajs0923″ and is located in San Diego, California. This item can be shipped to United States.