Large Saturn V second stage S-2 oxidizer shutoff valve used as engineering test hardware, measuring 21″ x 12″ x 18″, marked on a black tag: "Part No. V7480701-P3, Foundry Ident & Ser No. FRAM211, Heat No. TF94M, X-Ray No. 00935, Ht. Source & Batch No. 60D797." A green label on top reads: "For LO2 Service Only." The sides are stenciled, "Engineering Test." The shutoff valve regulated flow of liquid oxygen into one of five S-II stage J2 rocket engines. In very good to fine condition.