Can anybody identify this? What year?

[Mallachi]

There's all kinds of names on it but the one that really stands out of course is RCA. On the tube chasis it says 8C-807 and it states that as the model on a sticker inside that also includes the tube layout. What did I get? OH, also on the front there's a badge and I can't tell if it says Solver-Marshall or Lilver-Marshall MFG.CO. But the Marshall part looks exactly like the Marshall badges on my guitar amps but they are made in Britain and this thing says made in USA all over it. HELP?!