Desirable Mercury-Atlas Launch Vehicle Hydraulic Servo-Valve, measuring approximately 3.5″ x 1.75″ x 2″, with an uncommon and desirable "Project Mercury / General Dynamics Astronautics" label on the top, stamp-dated March 12, 1962. The side is etched: "Cadillac Gage Company, Servovalve-Hydraulic, FC26-398 A, S/N 32932." The opposite side indicates an O-ring cure date of "1Q1961," and the bottom is protected by a plastic panel, marked: "Do Not Remove Unless in a Dust Free Area." In fine condition.
From The Peter Gerry Collection.