Condition : Used and in good condition. This coin is 1 3/4 inches in diameter. 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 “SEAL / Sub Delivery Vehicle Team One SDVT-1 TU-A ser#152 Navy Challenge Coin” is in sale since Wednesday, September 27, 2017. 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.