United States 1952-1959 Plate Block Set of 10. Mint never hinged. Lots are matched. However, this is a file scan, so positions may differ from scan.

Included as listed below:
#C46 - Diamond Head, Honolulu, Hawaii (1952)
#C47 Powered Flight, 50th Anniversary, First Plane & Modern Plane (1953)
#C48 Eagle in Flight (1954)
#C49 Air Force, 50th Anniversary, B-52 Stratofortress and F-104 Starfighters (1957)
#C50 Eagle in Flight (1958)
#C51 Silhouette of Jet Airliner(1958)
#C53 Alaska Statehood, Big Dipper + North Star + Map of Alaska (1959)
#C54 Balloon Jupiter (1959)
#C55 Hawaii Statehood, Alii Warrior + Map of Hawaii + Star of Statehood (1959)
#C56 Pan American Games, Runner Holding Torch (1959)