G'Day Fella's,

Possibly Eagle 27?
Bob was the man behind Hunt Australia, and guided for all Australian and other South Pacific Game species.
In particular, Bob and his team hunted the NT, every dry season for Buff, Banteng etc.
Here is a link to his recent book; https://www.amazon.com/Penfold-Bob/dp/1594335176 and well worth the read.

Regards
Homer