Reconnaissance Team One / SRT-1. This coin is 2 inches in diameter with hard baked enamel and serialized on the edge. Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless otherwise 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.