2012 United States Mint Silver Proof Set – The Key Low-Mintage Modern Silver Proof Set! This is the highly desirable 2012-S Silver Proof Set, widely recognized as the lowest-mintage modern 90% silver proof set of its era. Official final mintage: only 395,443 sets. Why the 2012 stands out. 2009 – Mintage 697,365 (18 coins, 1.52 oz of 90% silver). 2012 – Mintage 395,443 (14 coins, 1.34 oz of 90% silver)? Lowest modern mintage at the time and a surprise sell-out. Complete 14-coin set includes. 2012-S Roosevelt Dime. 2012-S Kennedy Half Dollar. 2012-S El Yunque National Forest Quarter. 2012-S Chaco Culture National Historical Park Quarter. 2012-S Acadia National Park Quarter. 2012-S Hawai’i Volcanoes National Park Quarter. 2012-S Denali National Park and Preserve Quarter. Other coins (all San Francisco “S” proofs). All three protective plastic lenses, original black outer box, Certificate of Authenticity, and the official specifications booklet. Coins show beautiful mirror-proof fields with frosted devices. Carefully stored and in excellent condition. Feel free to ask any questions!