e6 - Original North American Aviation T-39 Sabreliner Airplane Hydraulic and Flight Control Manual printed in November 25th, 1960. I personally acquired this book from the estate sale of the engineer who worked on it here in Manhattan Beach, California.
The 6-hole punched binder is filled with over 100 pages of diagrams, blue prints, etc that all pertain to the T-39 airplane.
Measures: 6-/1/2” x 5” x 1