Vintage Blue Men's U.S. Air Corp Master Sergeant Uniform: Vintage men’s U.S. Air Corp Master Sergeant Uniform in blue. This style of uniform was the first blue uniform approved by President Truman and was not distributed until 1950 as the Korean war was starting. The jacket features two breast pockets, deep pockets at the waist, metal buttons up the front, and one Master Sergeant E-7 insignia patch to each arm. Includes a pair of matching pants with removable suspenders and cap with a visor and Bullion eagle emblem. The pants are marked W30 L33, the jacket is marked 38/L, and the cap is marked “6 3/4”. Tag in Pants is dated from the 1940’s.