I want to call false on the claim that this is s the biggest crt ever made. I used to work in a computer recycling center in the monitor testing area bak in 2007. One day a giant 60 inch blue aluminum industrial sized sony trinitron was brought in by the fork trucks for me to test. There was 2 of them from a large conference room at xerox or kodak or used by a tv station. They were bigger than an average pallet and took a forklift to move them.
Tell me you lived in Rochester, NY without saying so.
Now I want a plate...
That was most likely a rear projection unit, they looked kind of like CRTs but it's different technology. Sony did make them although they weren't marketed as Trinitrons AFAIK.