This unique sheet of U.S. stamps features the Edwin Powell Hubble Telescope and is a must-have for any stamp collector. The sheet includes 20 stamps with a face value of $6.60 and depicts colorful images of space. The stamps are in mint condition, never hinged, and are perfect for adding to your collection. With its United States origin and 2000 year of issue, this sheet is a great addition to any collection of U.S. stamps and is sure to impress.