The most common bark used for bark painting is from manbordokorr (Eucalyptus tetradonta or stringy bark). Bark for painting must be harvested when the sap is flowing freely in the tree and the bark is moist and supple. This is mostly during the Kunwinjku seasons of kudjewk (the wet season, around Decemeber to March) through to yekke (the cold season, from June to early July). The sheets are then flattened and dried over a fire or in the sun, and the surface smoothed with a piece of sandpaper, or with a knife. Knowledge of country and seasons is essential for Kunwinjku art.
Bark paintings from Oenpelli were first collected by Baldwin Spencer in 1912. The first 38 paintings were taken from the inside of wet season shelters. Over the following decade, another 170 or more bark paintings from Oenpelli and the Alligator Rivers area were commissioned by Paddy Cahill for the National Museum of Victoria. In the 1970s and 1980s bark paintings began to be marketed from Arnhem Land communities as contemporary art. Bark paintings from Injalak Arts have attracted the attention of the art world and the public at large; and recent generations of Arnhem Land bark painters continue to build on their artistic heritage, taking their art in new directions while building on past achievements.
All paintings purchased online are accompanied by a Certificate of Authenticity.