This set of two challenge coins features an Army rank Captain O-3 design and an Air Forces P-51 aircraft airplane design. Both coins are made in the United States and are original, not modified items. These coins are perfect for military enthusiasts and collectors, and would make a great addition to any collection. They are not subject to California Prop 65 Warning, and were manufactured in the 2001-Now time period. The theme of these coins is militaria, making them a unique and interesting collectible.