Chair from New Zealand. Appears to be hand made

Hi, does anyone know when or where this chair might have been made?
I bought it 2nd hand on trade me. NZ website for trading.
It has Dowell joints. It is made from solid wood. The parts seem to slot into each other.
The seat part under the cushion has been replaced with ply and timber. There are long straight grooves on the sides and back, with holes above or below, for the cushion/seat to be attached there somehow.
Thanks :)