Military Challenge Coin. USN – US Navy – United States Navy – SEAL Team XVII – SEAL Team Seventeen – NSW – Nava. L Special Warfare – C. PO – Chief Petty Officer – Excellence Through Leadership – Ask the Chief – April 1, 1893. Coin is maintained in a vinyl protective case. See pictures for visual details. Photos taken with and without camera flash. Some photos may show currency, soda cans and/or props along with item(s) fo. R size representation only. The ad price is my price. Your Satisfaction is Guaranteed! All items come from pet-free and smoke-free environment. The images you see are my actual pictures of the item(s); No “stock”, “internet” or “borrowed” photos. Please contact me if you have any questions. Thank you for looking.