Apollo Command Module (Block I) Phase-Locked Oscillator, measuring 8.75″ x 4.75″ x 3″, with a Bendix tag on the side: "Oscillator, Phase Locked, NR-SD Control No. ME474-0012-0004, Contract No. NAS9-150, Mfr Pt. No. GZ-29-A2, Mfr Ser No. 01546-501005E." Date-stamped May 26, 1965, with several inspection stamps on the side.
