This listing is for a very nice United States Marine Corps / United States Navy 1st Marine Division Chief Petty Officer Chief Petty Officer CPO Challenge Coin. This coin is 2″ x 4″ (oval). Represented on this coin. 1st Combat Engineer Battalion. 3rd Combat Engineer Battalion 3D. 3rd Assault Amphibious Battalion 3D. 1st Light Armored Reconnaissance Battalion. 3rd Light Armored Reconnaissance Battalion 3D. This will make a nice addition to any collection. Any questions, please feel free to ask. I always strive to deliver prompt and accurate results. If you are dissatisfied for any reason, please let me know and I will do my best to resolve the issue to your satisfaction. Just add the items to your cart and request an invoice.