Lot of 6 assorted vintage UNIVAC mainframe computer circuit boards, approximately 7.5" x 5" each. All boards are different, with various part numbers including 3619357-00, 3614689-02, 5028851-00, 5033177-00, 3614435-00, and 4032590-00. Boards feature TI integrated circuits, resistor arrays, and edge connectors. Typical 1970s-era construction with some substrate yellowing but intact components.