Hopefully someone will be able to confirm the details. Perhaps Bristows were at one point supporting Hiller sales through this company as part of the JV?
For Nigel 'Ozzy' Osborn:
Nigel: From your era ..
Helicopter Utilities FH1100 VH-UTZ at Sydney's Mascot Airport on 5th April 1969 (Photo: Greg Banfield)
Evidently this craft flew in Fifi for a time (as DQ-FBZ) but was eventually destroyed or substantially damaged on 10th February 1977 at Hoxton Park.
I am assuming that Rosemary Arnold (Australia's first woman helicopter pilot)
must have been a friend of yours given that she was flying at around the same time as you!
Rosemary Arnold with FH1100 N420FH in 1968 (most likely during one of her Stateside visits)