Early Vietnam US Air Force 2nd Air Division TCAS COMM BRANCH OG-107 Utility Set. Standard cotton OG-107 sateen shirt and trousers. Above the pckets are VN hand embroidered branch strip and name with an extra strip that hasĀ VIETNAM 64 65, also hand embroidered. On the right pocket is a 2nd Air Division Pack Rat's pocket patch, that is also Vietnamese hand embroidered. Both shirt and pants have been well starched but are still in great shape. Looks to be about a size medium.