Shoulder Sleeve Insignia

Description
On a black disc 2 1/4 inches (5.72 cm) in diameter, a white circle 2 inches (5.08 cm) in diameter and 1/4 inch (.64 cm) in width.

Symbolism
A white circle was used as a corps badge by an organization designated I Corps during the Civil War. The white circle was selected as the identifying device for the current I Corps.

Background
The shoulder sleeve insignia was approved by the Adjutant General, American Expeditionary Forces telegram on 3 December 1918 and approved by the War Department on 17 June 1922. (TIOH Drawing Number A-1-57)