Description: Original rare Colonial (Sylvania) auto radio service manual for the 1951 and 1952 Hudson models: Pacemaker, Super, Hornet, Wasp, Hollywood, and Commodore. Includes convertible, coupe, and sedan models. This manual is for the AM radio model number CH749-2 (Hudson 229403) and has 13 pages including one supplement sheet. Technical service bulletin number 2-23 and dated 12/27/51. Supplement is dated 5/26/52. Includes service instructions and adjustments, schematic/wiring diagrams, parts layout diagrams, parts list and descriptions. Three hole punched for insertion into a notebook. The model number of your radio is located on the unit. Good used condition. Shows some handling and storage age.