Apollo Command/Service Module propellant mixture control unit build by Simmonds Precision Products, Inc. of Vergennes, Vermont, measuring 12″ x 12″ x 5″, marked on the side with part information: "Control Unit, N.R. Control No. ME 4E0-0008-0021, Contract No. NAS 9-150, Serial No. 08275PCU8010…S.P.P.I. Part No. 384401-006." Below is a triangular NASA inspection stamp, dated "2/4/71." In very good to fine condition.
From The Peter Gerry Collection.
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