Presented By The Commodore. Naval Special Warfare Group 2 / Two. Condition: Used, and in nice shape. It is 2 inches in diameter. NOTE: Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless specified above. The free listing tool. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “rolyat11″ and is located in this country: US. This item can be shipped worldwide.