Mystery Cabinet - what was inside?

[Vintv49]

EarlyFilm - this is all wood, indeed, and looks professionally done by Drexel, Baker, or other high end type cabinet maker. There are some attachment screws in the front horizontal board and two holes in the back left horizontal support board that would have provided support for the main tv. I'll detail with photos later, as it's late for me to be up right now. Thank you, I think it's RCA possibly as I found a very similar cabinet in pine on CL today, nearly identical, but with minor design differences.

Electronic M -this is where I was heading...RCA. There's some writing, that I think is the final inspector(s) marks - will take photos of that, too.

mininman82 - what is TC-166? Chassis? I apologize, I'm going to fall on my face with alphanumerics. Do you have a photo of this cabinet? If it's identical, then you can explain what TC-166 refers to (RCA chassis?). Thank you for the input and all others, I'm really pleased with the cabinet, but ...wouldn't it be nice to have the original tv in there?