From 1988 on there was a recognition that the collection poorly represented work by women and Māori, and a separate account for purchasing Māori art was set up, which enabled the acquisition of "Treaty Painting" (1990) by Robyn Kahukiwa, three works by John Bevan Ford, one by Peter Robinson, and a set of nine Max Hailstone prints, "Te Tiriti o Waitangi" (1990).