United States Navy Chief of Naval Operations Challenge Coin Presented by Admiral Mike Mullen. Mike Mullen went on to become Chairman of the Joint Chiefs of Staff. The item “US Navy Chief of Naval Operations Challenge Coin Pres by Admiral Mike Mullen(42)” is in sale since Tuesday, February 27, 2018. This item is in the category “Coins & Paper Money\Exonumia\Medals”. The seller is “bonanzacoins” and is located in Silver Spring, Maryland. This item can be shipped worldwide.
- Country/Region of Manufacture: United States