Here are some pics of the ones I have here at work.
From what I briefly read the Sony CV-2000 is the first home VCR, Bob Crane no doubt had one.
It has no cabinet so it probably was in a console or rack originally, it's missing the cover over the heads and guides.
The others are a Sony AV-3400 and a JVC CR-6000U, a U-Matic machine I think.