[Ron Ramirez]

You won't get an answer, Larry Bordonaro sadly passed away several years ago. I'm frankly surprised his site is still up.

Ed Schutz (renovatedradios) took over much of Larry's old product line, but not all.

Edit: The knobs are the same as used on many of the very small Transitone/Philco Transitone radios as well as some slightly larger Philco table models (40-120 comes to mind), only painted to match the cabinet.