Hi,
I am wondering if anyone might have any internal images of the "Tecla Thirty". I am guessingthis one dates from about 1922 or 1923. They were out of Detroit Michigan. I also do not believe they made it past "Black Tuesday", if even that far, as I find zero references within the early tube era.

I just aquired the case for one of these in presentable condition, and now have the luxury of recreating the internals with correct era pieces. The previous owner decided to turn it into a sewing case.

Thomas E. Clark (Tecla) was a much older radio company, but as you surmised, did not last far into the 1920s. You should get in touch with the Michigan antique radio club, as Teclas are not very common, and are well worth restoring correctly. Someone may have a set of guts for it, which would be far better than making a homebrew.