This is a Heathkit model FM-4 F M Tuner assembly and using manual from 10/5/1959.

Includes the manual and a large loose insert showing various drawings of the components as they are assembled.  There is a second wiring schematic that is attached to the back page of the manual.

The book is in excellent condition.  There are pencil check marks by each assembly steps.

Original owner from my Dad who assembled the FM Tuner.  His complete system worked well.