Developed for the Korean War, the M1951 field coat was made from OG-107 water repellent and wind resistant sateen and had a zip front closure and button cuffs. It had both waist and hem drawstrings and in cold weather could be fitted with a detachable liner. A hood could be buttoned to the coat’s epaulets to provide protection against the elements for both head and face. Though they were rarely needed in Vietnam, field coats were worn in the Central Highlands where it became rather cold at night.
Patch ( left upper sleeve) : The 6th Air Defense Artillery Brigade was the unit under which the United States Army Air Defense Artillery School is organized. The ADA School has been redesignated to the 30th Air Defense Artillery Brigade. The official motto of the 6h ADA is I Aim With a Sure Blow (Latin: Certo Dirigo Ictu). The brigade was based at Fort Sill, Oklahoma.
Sleeve patches : Army Specialist (E-4)