MS21936A, MILITARY STANDARD: CONTOUR AND MOUNTING END, CLUSTER FITTING BODY, SEMIFINISHED (27 NOV 1957) [S/S BY S/S by SAE-AS21936]
MS21936A, MILITARY STANDARD: CONTOUR AND MOUNTING END, CLUSTER FITTING BODY, SEMIFINISHED (27 NOV 1957) [S/S BY S/S by SAE-AS21936].