Insignia Description
A silver color metal and enamel device 1 1/8 inches (2.86cm) in height overall consisting of a shield blazoned: Per chevron Sable and Tenné, on a chevron Argent between in chief two unicorn heads erased of the third, and in base a Vietnamese building of the first, charged with a fountain, two lightning flashes Azure, chevronwise. Attached below the shield a Silver motto scroll inscribed "TEAMWORK STRENGTH SPEED" in Black.

Symbolism
The unicorn, the heraldic animal with the body and head of a horse and the legs and feet of a deer, is strong as a horse and swift as a deer. The two unicorns symbolize the teamwork, strength and speed of the Battalion and its heavy construction duties. Since the unit was originally activated at Fort Crowder, Missouri, the horses further allude to the early history of the area when the starting points of the Santa Fe Trail and the Pony Express were in Missouri. The white chevron represents the lights and beacons of the Signal Corps. The Far Eastern structure, and the fountain, a conventional heraldic representation of water, refer to the overseas service, the buildings and rice paddies of Vietnam. The lightning flashes are symbolic of Communications and the four jagged points of the flashes represent the four battle honors of Ardennes-Alsace, Central Europe, Northern France and the Rhineland. The colors black and white refer to the day and night vigilance of the unit, while orange is a color of the Signal Corps.

History
The distinctive unit insignia was originally approved on 7 Aug 1967.

Source: The US Army Institute of Heraldry