Vintage Radio Service Manual - AIRLINE model 74WG-1509A & 74WG-1510A 6-tube. Superheterodyne AM radio receiver. Manufactured by Montgomery Ward & Company of Chicago, IL. Dated 1947. 4 pages.  Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. This manual would make a sensational accompaniment to your retro audio equipment.