This CPU board is one of two boards that were used in the NOVA 800, a 16 bit minicomputer. This board consists of resistors, capacitors and many integrated circuits SSI and MSI dips. There is a copyright 1970 by Data General solded on component side of board. On the circuit side is a yellow sticker with the following drawing no.: 007-000-116-18; 007-000-117-10; 007-000-118-06.There is a top cover for the circuit side made out of fiberglass. The screws to attach it are missing.