Apollo Saturn V Third Stage Pneumatic Propellant Control Valve made by Clary Corp., measuring 8.75″ x 6″ x 3.25″, with a NASA George C. Marshall Space flight center plate at center: "Valve-Pneumatic Propellant Control, Assy No. 527417, DAC Spec. 1B59010-501G, Contr. No. NAS [7]-101, Ser No. 117, Date 12-66."
