For grins, I have posted a picture of my '51 Philco chassis. Although these early Philcos are fairly common and perhaps not worth the "big bucks" yet , I think they are quite worth collecting!

Mine occupies a fairly choice spot in my "TV room".
jr
Edit add "Anyone have a replacement focus pot?" Strange, both my '51 and '53 models have permanent magnet focus! Indeed the chassis resistor on my '51 failed, but did not destroy any other parts...weak point for these sets?