Export restricted (ITAR), sale only to US Citizens and Organizations. Navigation computer control box (CP723B/ASN-46) built by the Bendix Corporation for the McDonnell Douglas F-4 Phantom II fighter jet, measuring 5.75″ x 6.75″ x 7.5″, with Bendix plate on the reverse: "Computer-Control, CP-723B/ASN-46, Part No. 17319-2J, Contract No. F33657-68-C-0128, Serial No. 811101." The elapsed time ticker on the side reads "3275 Hours," and affixed service tags indicate the unit was overhauled on May 5, 1987. This unit, part of the F-4's Inertial Navigation System, would be used by a Radar Intercept Officer (RIO) to dial in the latitude and longitude of up to two different targets.
