Vintage TRAV-LER models 517-106, 517-107, 521-111 and 521-112 (Ch. 520B5 and 520BD5) 13 tube TV television receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. 16 pages. Dated 1956. TravLer Radio & Television Corp. of Chicago, IL. This manual would make a sensational accompaniment to your classic video TV equipment.