Kirk,
Those sets are beautys! I really like the Pensbury to the right. I see you have the same wooden box RCA UHF converter as me.
Ever consider how impossible it would be to set up a wall of these early color TV's so their color temperatures, etc., all tracked like they do in the big electronics superstores? Heck, it is hard to do with just two of these vintage color sets! In fact forget tracking, just try to get several all working at the same time!
I tried to capture that stunt here with a CTC-16A and a CTC-20, but my digital camera saturated on the highlights.
Rob