As 'Sir Minty' has mentioned.
This is the Beech AT-11-BH Kansan ZK-AHO (c/n 3691) which was built as 42-37208 for the US military.
After repairs it arrived in NZ by sea in August of 1943 and was assembled at Hobsonville for N.Z. Aerial Mapping Ltd of Hastings.
See previous posts on this beauty HERE.
Anybody recognise where this photo was taken ?
It comes the R McDonald collection.