In my 'Morning Review' of the on-line shops, I always check for any New Zealand items. This morning, I came upon these ..
He is labelled Uncle George Dennis, Auckland, New Zealand; Sydney, New South Wales.
It's pretty clear that he is not a professional musician or minstrel: the banjo bit is a hobby ...
Anyway, I searched a bit and I found this from 7 September 1887:
Here is the Foresters Hall