During this period, McCahon was experimenting with a number of commercial oil and water-based paints. In some cases, he mixed these with artists' oil colours. The exact nature of the medium can be difficult to determine.
Six works, each titled Waterfall, series 2, and each priced at 10 gns, were shown in The 1964 Group Show at the Durham Street Art Gallery, Christchurch. It is possible that this work was one of that number.