Vintage H. H. SCOTT model 331-A  7 tube Superheterodyne FM radio tuner. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. 8 pages. Dated 1956.  Hermon Hosmer Scott, Inc. of Cambridge, MA. This manual would make a sensational accompaniment to your classic radio equipment.