Naval Special Warfare Group 2. Condition : Used and in good condition Please see pictures. This coin is 1 5/8 x 2 inches. Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless otherwise specified above. The free listing tool. The item “Naval Special Warfare Group 2 Mobile Communications Team CPO Navy Challenge Coin” is in sale since Friday, May 20, 2016. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “rolyat11″ and is located in Panama City, Florida. This item can be shipped worldwide.