2011 (44¢) Space Firsts - 2 Varieties, Attached Plate Block

United States #1434-35 8¢ Space Achievements - 2 Varieties, Attached Plate Block*Plate number and position may vary from image shown.

United States #4553-57 - (44¢) Pixar Films: Send a Hello - 5 Varieties, Attached Plate Block*Plate number and position may vary from image shown.

United States #4465-66 - 44¢ Negro Leagues Baseball - 2 Varieties, Attached Plate Block*Plate number and position may vary from image shown.

United States #1912-19 18¢ Space Achievements - 8 Varieties, Attached Plate Block Varieties include: #1912 - Exploring the Moon #1913 - Releasing Boosters #1914 - Cooling Electric Systems #1915...

United States #4467-71 - 44¢ Sunday Funnies - 5 Varieties, Attached Plate Block*Plate number and position may vary from image shown.

United States #4446-49 - 44¢ Cowboys of the Silver Screen - 4 Varieties, Attached Plate Block*Plate number and position may vary from image shown.

United States #2867-68 29¢ Cranes - 2 Varieties, Attached Plate Block Varieties include: #2867 - Black-Necked Crane #2868 - Whooping Crane *Plate number and position may vary from image shown.

United States #3384-88 - 33¢ Hubble Space Telescope Images - 5 Varieties, Attached Plate Block of 10 Varieties include: #3384 - Eagle Nebula #3385 - Ring Nebula #3386 - Lagoon Nebula #3387 - Egg...

United States #1577-78 10¢ Banking & Commerce - 2 Varieties, Attached Plate Block Varieties: #1577 - Banking #1578 - Commerce *Plate number and position may vary from image shown.