The US Mint 11 Annual Proof Sets 1999-2009 OGP Box & COA Coins Estate Sale features a collection of uncirculated coins with a clad composition, struck in proof quality. The sets include coins with denominations ranging from 1 cent to $1, minted in San Francisco between 1999 and 2009. Each set comes with a Certificate of Authenticity from the U.S. Mint, making it a prized addition to any coin collection. The sets are housed in original Government Packaging (OGP) boxes, adding to their value and authenticity.