Hi Regle,
So, the mighty collar studs reigned supreme! Glad to hear it - none of these wimpy sewn-ons...
I do remember the separate collars from my time in the ATC in the '60s. My front collar stud, the long one, rubbed my Adam's apple raw until I got used to it. When I joined, the ATC was cutting over from the old 1920s dog collar tunics, and we had one lanky out-of-measure lad who had to wear one for a good few months until a BD was found for him. He looked like Aircraftman Lawrence...
I joined the RAF as a 16 year old Boy Entrant (38th Entry Telegraphist II, RAF Cosford) in 1959. When I was demobbed in 1973 the official issue shirts still had seperate collars.