The USN Navy Petty Officer 2nd Class Patch Challenge Coin is a collectible item that represents the rank of a Petty Officer 2nd Class in the Navy. The patch features the Navy anchor and star with the designation “PO2″ and “Challenge Coin” on the back. This coin is a symbol of pride and achievement for those who have served or are currently serving in the Navy, making it a coveted piece for military enthusiasts and collectors alike.