Ewald Namatjira ( 1930 - 1984 ) was an Australian painter. Ewald Namatjira s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1083.03 USD for CENTRAL AUSTRALIA in 2004 to 9260.56 USD for Untitled in 2009 , based on the size and medium of the artwork.