With an unprecedented low mintage of under 800,000 for the time, the big 2012 proof set houses 14 coins in three separate lenses. One lens includes five America the Beautiful quarters honoring El Yunque, Chaco, Acadia, Hawaii Volcanoes and Denali parks. Another lens contains issues from the Presidential Dollar series celebrating Chester Arthur, Grover Cleveland's first and second terms and Benjamin Harrison. The final lens features a Lincoln cent, Jefferson nickel, Roosevelt dime, Kennedy half dollar and Trade Routes Native American dollar. Each coin is double-struck for crisp raised-relief images, with elegant frosted-finish engravings that contrast with stunning mirror backgrounds.