To the left of the label on the back and above the vent louvers, I think that I see an extended area that perhaps covered the end of the crt, so I suspect that it was not a projection set. The mask that surrounded the crt appears to be missing, so we just see a rectangular glass in the front.
It appears to be similar in design to this Phillips:
http://www.tvhistory.tv/1949-Philips-663-DoorsOpen.JPG
jr