Sorry to disillusion you Mick.
That is NOT a 1960's Australian SAS beret. Prior to 1965 the unit wore a red beret. The beret worn from 1965 to the mid 1970's was Australian made and had a fawn coloured cloth headband. It was also a light fawn colour rather than the grey fawn colour shown in the photo. The beret shown is British with the black leather headband which started coming into service in the mid 1970's. I have worn both and was in the unit when the change to the British beret was made. Tried to find my old Australian one to put a photo up but I gave a lot of my stuff to the AWM and it may be there.
Nor did we wear a brass hat badge. The unit has always worn the A/A. Any brass badges were private purchase and there is a discussion on it here.
http://www.britishbadgeforum.com/for...ead.php?t=1447 and here
http://www.britishbadgeforum.com/for...ead.php?t=1774 which we discussed earlier. This badge is a private purchase and worn sometime after 1974 but more probably the 80's or 90's.
I have spoken with former members of the unit at the time it became a Regiment (Sep 1964) and none of them know of a brass badge badge being worn. If your source wore that beret in Vietnam than it was private purchase not issue. No-one in our squadron wore them
Cheers
Chris
PS. If you can PM your source's name I can actually check if he did serve with one of our squadrons in Vietnam. Unfortunately we have more people claiming to have been in the unit in Vietnam than actually served there!