2016- US Mint Silver Proof Set with OGP and COA. This 2016 US Mint Silver Proof Set is a must-have for any coin collector. The set includes a variety of coins with a fineness of 0.9 and a strike type of proof. The coins are uncirculated and come with a certificate of authenticity. The set was minted in San Francisco, United States, and is ungraded. The coins in this set are a great addition to any collection and the certification ensures their authenticity. Don’t miss out on the opportunity to add this beautiful set to your collection.