I just got done testing the CRT, it's tired, especially the green gun however I plugged it in and got a nice raster with all three colors visible.'
I suspect it would make some kind of picture if I hooked up a source.
Edit: hooked it up to a DVD player, the tuners touchy but after I got it tuned in it made a decent picture, missing one thing though, the color.
I also found a date code on one of the filter cans, 6547 so built late in 1965, so maybe a 66 model?