Vintage AIRCASTLE models 472.17XUCM, 472.17XUCM.1, 472.17XUCM.2, 472.17XUCM.3, 472.17XUCM.4, 472.17XUCM.5, 472.17XUCO, 472.17XUCO.1, 472.17XUT.4, 472.17XUT.5, 472.17XUT.6, 472.17XUT.8, 472.21XUCM, 472.21XUCO, 472.21XUCO.1, 472.21SUCO.2, 472.21XUT, 472.21XUT.1, 472.21XUT.2, 472.217C, 472.217C.1, 472.217T, 472.217T.1, 472.221XC, 472.221XT, 472.221XT.1, (Ch. 317-B, 317-D, 321-B and 321-D) 20 tube TV television receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list. 20 pages. Dated 1953. Spiegel Inc. of Chicago, IL. This manual would make a sensational accompaniment to your classic video TV equipment.