I have a couple of Montgomery Wards Airline radios, and when I was looking them up found Airlines to be very difficult to pin down. They had so many different models over the years and it seems they had OEM's build for them, so you can have just about any chassis inside. But they are also some of my favorites in my collection.I don't know if restoring old radios is financially feasable or not, but it sure is nostalgic. It's worth it to me on that basis alone. There are some radios that are worth a lot of money, but even the ones that are only worth about a hundred bucks are sometimes really great. I've put more value in them than that, and sometimes buy all new tubes, capacitors and wire to do a restoration. This can sink two and three times that much money in 'em, but they'll last another fifty years and that's pretty cool, all by itself.
Post a photo of your radio if possible. I'll look through my books and see if it happens to be there. You might also interested in the books and parts at Antique Electronic Supply. If you decide not to restore it and want to sell it instead, you might post a photo in the Swap Meet forum here, and maybe someone else will buy it from you.