Insignia Description
A silver color metal and enamel device 1 1/8 inches (2.86cm) in height overall consisting of the shield and motto of the coat of arms.

Symbolism
The background of the shield is black.  The bend is orange bordered in silver for Signal Corps.  The silver peach is symbolic of the State of  Georgia, the origin of the cadre and original officers of the 29th Signal Construction Battalion.  The horse's head represents the state of activation - Kentucky.  The telephone poles are symbolic of telephone construction, the type of work done by this unit; the two poles represent the second unit from one origin - the 29th Signal Construction Battalion.

History
The distinctive unit insignia was originally approved for the 40th Signal Construction Battalion on 6 Jan 1943.  It was redesignated for the 40th Signal Battalion (Construction) on 30 Jul 1954.  The insignia was amended to correct the update and correct the description on 23 Oct 2003.

Source: The US Army Institute of Heraldry