2012 P Denali 5-ounce ATB NGC. This 2012 P 5oz silver 25c DENALI NGC SP70 American the Beautiful ATB Coin is a stunning addition to any coin collection. Minted by the U. The coin is made of 5 ounces of pure silver and is proof-like in strike type. Certified by NGC, this coin has a certification number of NGC 2600438-002 and is graded SP70. This coin is a must-have for any coin collector. NOTE: The photo above is the coin you will receive.