The US Mint Proof Set 2011 Complete 14 Coin Estate Lot Collection Lot Of 3 is a valuable collection of uncirculated coins with a copper composition, minted in San Francisco in 2011. This set includes 14 coins, each with a denomination of $1, struck as proof coins with a fineness of 0.75. The coins are graded ungraded and come with certification from the U.S. Mint. This lot offers a complete collection of 2011 US Mint proof coins, making it a desirable addition to any coin enthusiast's estate.