Flown screw from Gus Grissom's Liberty Bell 7, recovered from the Atlantic Ocean on July 20, 1999. Screw bolt measures approximately .75″ 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. In fine condition. Accompanied by a certificate of authenticity from the Kansas Cosmosphere, which restored the capsule after its recovery.