Correct. Reference to the 'hairy' non-commissioned uniform phased out in 1972. Anyone commissioned from the ranks was/is known as an "ex-hairy" during OCTU/IOT.
The pic below gives a graphic demonstration of the different quality of uniform between commissioned and non-commissioned circa 1973. From the left: Officer No 1, SAC Hairy BD, Officer No 1, and the other 2 are Officer barrathea BD
