Apollo CM Guidance and Navigation Computer Buffer Unit, measuring 6″ x 4″ x 6″, bearing a large Control Data Corporation affixed to the reverse: "Unit, Computer Buffer, Guidance & Navigation, NAA/S & ID Control No. ME901-0271-0002, Contract No. M5H3XA-450001…Part No. 106068-C002, Mfgr Serial No. 10136SA11365, Dec. 13 1965." The opposite side has three connection ports labeled "J200," "J202," and "J203." In fine condition. The Computer Buffer Unit was part of a system of pre-flight ground check out equipment to confirm the Apollo Guidance Computer (AGC) was fully operational for the lunar mission.
From The Peter Gerry Collection.