The 2018-P Breast Cancer Awareness Commemorative Proof Silver Dollar is a special coin issued by the United States Mint in Philadelphia. This uncirculated, modern silver/clad coin with a fineness of 0.9 has a denomination of $1 and features a commemorative design related to breast cancer awareness. It comes with a Certificate of Authenticity (COA) from the U.S. Mint, making it a valuable collector's item for those interested in modern commemorative coins.