:Hi Turner,
:Your Airline is a 1941 model, built for Mont. Wards by the Wells-Gardner Co. of Chicago. It will operate either from AC line or 6 volt auto battery. Schematic and service information can be found here on NostalgiaAir. From the home page click on "Resources", then scroll down through the list of manufacturers and select "Airline", then scroll down through the model numbers and select "13WG-575".
:Poston
Correction: I meant to type "14WG-575" for that model number.
Poston
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::I am looking for information on the age of this radio, and information for restoring it.