This Combat Service Identification Badge is for the 420th Engineer Brigade of the United States Army. This CSIB is a 2 inch enamel pin that is ready to be worn on the Army service dress blue uniforms. Can be easily attached to your uniform with its pin backing to securely display this badge to meet all regulations. After service this combat service identification badge could be displayed in a Veteran’s shadow box. The 420th Engineer Brigade is a subordinate unit to the III Corps and is located in Bryan, Texas. The 420th Engineer Brigade combat service identification badge is made and in the USA.