Just a follow-up on this. I walked over to the Argus Bldg to have a look at the exhibit. Not large in square footage, but interesting nonetheless. Argus started (under another name) as a furniture company in the late 1800's. Then they then built table top radios when the furniture bus. slowed and finally moved into cameras which were produced until the late 60's which is just about when I moved to Ann Arbor.

The exhibit contained many examples, if not all, of their models. I didn't realize they were into some things on display, such as the predecessor to the smart bomb and 35mm enlargers that utilized the camera body as the enlarger lens. Anyway, snapped a couple of pics.