Dame Elizabeth Blackadder ( 1931 - ) is a British painter. Dame Elizabeth Blackadder s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2098.69 USD for Still life in 2010 to 23109.37 USD for CATSﾠ ANDﾠ ORCHIDS in 2012 , based on the size and medium of the artwork.