Here is a radio made by Electrical Research Labs (ERLA). I haven't found the model info for this one. As a matter of fact, the only information I find on ERLA is for Real early radio. I read somewhere that ERLA was bought out by Sentinel radio sometime in '34 so I can't be sure. Tube line-up is 224, 235, 235, 247 and 280. It's components and design appears to be from ~1932-'34. Need to find a third matching knob. The case is untouched and looks pretty good. This radio was a local purchase. I did restore it and it works pretty good. It needs a long wire for an antenna. Since restoring it electrically, I found a set of 3 period knobs that look great. I just need a new picture!