Quote Originally Posted by Thunderbox View Post
It is (or was) a 5 Airborne Brigade unit. I can't remember who 5/7 was (pretty sure it was a Para bn), but my own unit was 5/14 at that time.
I'm of the mind that 5/7 is some kind of embark code. Both Chosenman's and mine have the marking and are both from 10th GR SP Coy. In searching through the archives of this site, I also came across a photo of a chest reading 22SAS that also bears the 5/7 marking.