With a system with a KIM-1 and a KIMSI I acquired came a board that I do not recognize. The board is connected to the Application connector of the KIM-1. IT has the markings microcalculator model-85. The display is made by HP 7447632K 14 digits. Besides the recognizable CMOS based logic ICs from the 74C and CD range there are some unidentified ICs, 1CA-85, 1CD-85A. And some ITT IC's like 7708 500N and 501-5N Any clue?