I have no information whatsoever, but I do have a Keith twin-lens 4x5" portrait camera which I acquired a couple of months ago in great shape and am looking forward to using. In fact, my first APUG posting was about this. Someone who lived in Riverside CA was kind enough to look in their phone book but found no trace of them. I searched the web in every way I could think of - nothing!
Want to form a Keith Owners' Club? Exclusivity guaranteed!
David, You didn't by any chance buy mine? I sold one awhile ago on Ebay. They're really neat cameras.