This hooded military coat is labeled as a Woman's Medium-regular with measurments as follows: Shoulders 25 across. The OG-107 uniform was introduced in 1952 during the Korean War, succeeding the M1943 Uniform. The designation came from the U. Army's coloring code "Olive Green 107", which was the shade of dark green used on the original cotton version of the uniform. It became the standard for use both in the United States and on overseas deployment by the beginning of the Vietnam War.
As the Tropical Combat Uniform (jungle fatigues) became more plentiful in South Vietnam, they began to replace the OG-107 uniform in combat units. In the United States and foreign postings (outside of Southeast Asia), the OG-107 remained the standard uniform throughout the 1960s and 1970s. This is one of the longest issued uniforms by the US Military, seeing use from 1952 until the adoption of the woodland-patterned camouflage Battle Dress Uniform (BDU) as the armed-forces-wide replacement beginning in 1981 and being completed by 1989. Minor modifications were made to the uniform over time such as adding buttoned cuff slits in the mid-1960s.