Here is my CTC-4 as it looked as soon as I got it home. I have the legs section removed in this photo as it had to come off to get it into my small car. It has the original back and is complete except one knob is wrong. My 21AXP22 had gone to air.
I was fortunate to find a good replacement!
Did you see a 21AXP22 just went on ebay for about $650 US. That's $1000 plus duty, plus taxes, +++ where I live. One of these days I hope to actually restore this set with a total re-cap to operational status. I just want to finish the cabinet first so it looks nice on display.
Rob