schematic search for Montgomery ward airline radio

No luck with those numbers. Is there any other number on the chassis or int he set showing a 1-2 diget number and some letters like- 23WGXXX?
I am unable to even find that series in either Riders, Sams or on Nostalgia Air sites.
 Please keep in mind the Wards never made any radio them selves.
Many were made by Wells Gardner (Get it? The 2 letters in the model above WG?).
 You may be reduced to doing what I have had to do numerous times, and that is find the appx. date it was made and search other mfg. schematics of about that time period to find something close or with luck, the same model.
 And to add to the complications, some mfgr's. decided to re-issue model numbers for totally different items! Best of luck.

I recently purchased an Airline radio sold by Mongomery ward  Model 1747 A . I tried to find the schematic on several sites including the nostalgia air, radio museum, and Beitmans. I also did a general search.  There was a photo of it on the radio museum site matching the radio with info saying it is circa 1966 ? but no schemo  Any other recommendations on where to find the schemo?