Vintage AIRCASTLE models 5003, 5004, 5005 and 5006 5 tube Superheterodyne AM radio receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test charts, repair parts list and description. 4 pages. Dated 1947. Spiegel Inc. of Chicago, IL. This manual would make a sensational accompaniment to your classic retro radio equipment.