Mmmmm ...
Vowell Air Services IIRC only had 2 B206A (converted to 'B' spec.) machines (VH-AAL & VH-PMR) up until about 1978 when VH-FJC (a 206B) then joined the fold ....
I'm sure there were probably others after 1982 ... but by then the desire to operate the AS350 machines became the flavour as the H500 were disposed of ... Sk76 arrived for the Antarctic contracts etc etc ...
Ahhh the "good ol' days"