Got a good look at the TV Wilbur won in a contest. It was a mild Italian Provincial style. Damn funny to watch Mr. Ed lasso it and pull it into his barn..
My apologies that my camera was nowhere around to get a screen shot.
General Electric first color chassis was the CW, a CTC11 clone
Next was the CX chassis, a very obvious CTC12, with the "Color" badge on the mask under the screen. After that, the FY and CA CTC15s before the CB-21, all GE with a tube layout similar to the CTC15, their last Roundie.