We have a WWII-era bombsight computer, officially named "Aircraft Bomb-Aiming Mechanical Computer" made by A.C. Spark Plug Division, General Motors Company in Flint, Michigan. It appears to be more or less complete except for the cover and protective rails. Read more about this here. This is not associated with the famous Norden bombsight that won the war, but it is definitely a piece of history. Probably the most amazing thing about it is that it is a mechanical computer as opposed to an electrical one!