Apollo-era ball valve associated with ground support operations at the George C. Marshall Space Flight Center, measuring 5″ x 4.25″ x 2″, with a metal Flodyne Controls label on the body, reading: "Name: 3/8 In. Shut Off, P/N 3A1310, S/N 0000025, Date 9/68, Pres. 6600 PSI, Fluid GN2 GHE, Act. Manual, Spec. 65B23531-125D." A metal NASA/George C. Marshall Space Flight Center attached at the knob reads: "Ball Valve, Assy No. 65B23531-125D, Contr No. NAS8-5608, Accept Date 9-68, Serial No. 0000025, Wt (LB.) 4, Mfd by Flodyne Controls, Inc." In fine condition.