Recognize this guy?

He is in the corners of the 1925 New Zealand commemorative set for the NZ and South Seas Exhibition in 1925-26, a world's fair that drew 3 million in paid attendance in a country of 1.25 million people.

The design depicts the view down the Grand Court toward Festival Hall.
The stamps were printed by the Government Printing Office in New Zealand using typography on Cowan chalk-surfaced paper, with each stamp being a different color, and printed on a different paper.

These are SG 463-465, Scott 179-181.
In looking for some information on the exhibition, I saw quite a bit of ephemera online.