2012 S Parks Quarter ATB Roll Gem DCam 90% Silver Proof 40 US Coins. 2012 S Parks Quarters. 8 of Each Coin. Gem Deep Cameo Proof. El Yunque National Forest Rec. Chaco Culture National Historic Park. Similar to Coins Shown. Up to 10% off BIN Price. Less than that will be auto declined. To combine more items you can take up to 7 days to pay. Please Allow up to 30 Days for Late Packages. 30 Day Return Privilege.