While going through some of my late father’s papers I came across the confirmation he received that he could wear his pilot’s brevet. Granted that things were probably pretty hurried in 1918, but how have people since then been notified that they can wear the relevant brevet? I’d somehow imagined it might be a bit more formal than that.
No. 1 School of Navigation and Bomb Dropping, by the way, was alongside Stonehenge, and he flew DH 9As, luckily too late to see combat.