[Chuck Schwark]

I see now why you have not been able to ID that set. That Philco chassis is not in a Philco cabinet. Just looking at the front and rear pictures, the dial face does not lineup with the case opening in front. The chassis is too small for the cabinet and the speaker is also offset from the cast circular rib on the inside. The chassis may be a Philco, but the cabinet is not. There would have been a 2-3" rectangular paper sticker on the wall inside or on the bottom center of that bakelite case.

Maybe a larger good photo of the top of that chassis (straight down) showing tube and major component placements AND listing the tube types may be of help to ID the Philco model.

Just by looking at that dial face, it could be a 1942 42-PT25 or 42-PT26, or a 1941 PT-42 or PT-44, or a 1940 PT-26 or PT-28.