Besides being a CTC-15, The CRT Bezel could almost pass for a CTC-12 version. There are some slight differences to the now trained eye! The black accents must be exclusive to that model too. That is just really a beautiful set.
I once had a CTC-12 that was in a black metal cabinet with black screw in legs that I really liked but I had to part/thin out my sets in the late seventies when I moved from Michigan to Texas...kinda' reminds me of it...