U.S. Army Technical Manual TM 11-2121 – Central Office Equipment Fundamentals (1950) • Original wartime printing

• Original wartime printing

30-06 popular)

$125 (3-30-25)

This package comes with 4 boxes of 300 Winchester magnum ammo

U.S. Army Technical Manual TM 11-2121 – Central Office Equipment Fundamentals (1950) • Original wartime printingOffered here is an original Department of the Army Technical Manual TM 11 2121, titled Fundamentals (All Relay 100 Point Dial Central Office Equipment), dated April 1950. This manual covers the basic principles and operation of early electromechanical telephone switching systems used in military and civilian communications networks during the post WWII period. Details: Manual Number: TM 11 2121 Date: April 1950 Issued by: Department of the Army