Aboriginal art

Rows of four-petal forms in grey-blue, each ringed by concentric ochre and white dotting, divided by long horizontal bars that run the full width of the canvas. The dotting is dense and even, and the surface reads as ground seen from directly above.

Held by the gallery under the plain title Aboriginal art. Mark Cook's own account of the work, and what the gallery knows of how it was acquired, is a conversation with Ross.