This 2001 P $1 Back Diamond Buffalo Silver Dollar is an exceptional piece of modern silver coinage. Graded at Proof 70 Deep Cameo by PCGS, it is a proof strike type coin with a fineness of 0.9. The coin is uncirculated and has a denomination of $1. It features a commemorative design and was minted in Philadelphia. This piece of American history is a valuable addition to any coin collection. The PCGS certification numbers may vary.  It is a must-have for every coin collector.