Three pages with the step-by-step computer procedures that U.S. astronauts followed to land the Apollo 11 lunar module on the moon's surface in 1969 have sold at auction for $175,000.
Heritage Auctions says the pages sold Friday in Dallas to an American collector who wished to remain anonymous.
Heritage says the pages were originally from the personal collection of Buzz Aldrin, the pilot of the lunar module.
Michael Riley of Heritage calls the pages "incredible artifacts from humankind's first landing on the moon." Riley added that they "guided our first real steps away from the earth."
The pages come from the manual and checklist for the operation.
Copyright The Associated Press
