The US Collection of 37 blocks of 4 each Mint NH OG (6 stamp LHR) VF is a valuable assortment of United States stamps in pristine condition. Each block contains of 4 stamps, all in Mint Never Hinged condition with original gum. These stamps are uncertified and in Very Fine quality, making them a desirable collector's item for those interested in American philately stamps in this collection, it offers a comprehensive range of US stamps for any enthusiast or collector.