Apollo Command Module (Block I) Phase Lock Oscillator built by the Bendix Corporation as part of the spacecraft's telecommunications subsystem, measuring 7" x 4" x 3", with the Bendix plate reading: "Oscillator, Phase-Locked, NAA/S&ID Control No. MC474-0012…Contract No. NAS 9-150." Stamped "Eng. Test," with a manufacturing date of March 1964.
