Flown screw from Gus Grissom's Mercury-Redstone 4 spacecraft, the Liberty Bell 7, recovered from the Atlantic Ocean on July 20, 1999. The screw measures approximately .5″ in length and is presented inside a 5.25″ x 4.25″ x 1.75″ Lucite display with an image of the spacecraft, as well as printed information about the recovery, which reads, in part: “This Liberty Bell 7 component was removed during an extensive restoration conducted on the spacecraft by the Kansas Cosmosphere and Space Center in Hutchinson, Kansas. The item could not be reinstalled in the spacecraft because of the corroded condition of the component to which it was originally attached.” In fine condition.