2019-2023 5 Year Set of Limited Edition Silver Proof Sets - 38 Coins Total, 5 Complete Sets Over 11 Oz of Silver. 2019-2023 5 Year Set of Limited Edition Silver Proof Sets - 38 Coins Total, 5 Complete Sets. All sets contain over 2oz of Silver! Like the standard Silver Proof Set, all coins in the set are made with a composition of 99.9% starting in 2019. Since 2012, the San Francisco Mint issued special limited edition Silver Proof Sets containing only the silver coins of the standard set, plus a proof American Silver Eagle -- except for Two Silver Eagles in 2021! The sets have a mintage limit of 50,000 each.