Theodora Cowan (1868-1949). A hand modelled earthenware lamp base decorated with platypuses and trees on a riverbank, c. 1935, labelled to base: Cox Collection, 'Theo Cowan, Koala Pottery, 13.5 cm high, 18 cm wide, 19.5 cm deep, 'Illustrated: Australian Art Pottery: 1900 - 1950, Kevin Fahy, Keith Free, John Freeland & Andrew Simpson, Casuarina Press 2004, p. 112, plate. no. 80