Tenth in Nature of America Series. The product is a sheet of 10 US stamps featuring the Nature of America series, specifically focusing on the Great Lake Dunes. With a denomination of 42 cents and issued in 2007, these multi-color stamps showcase the beauty of nature in the United States. The stamps are in mint never hinged quality and have a face value of $4.20. Perfect for collectors interested in nature-themed stamps from the USA.