Agatha (gathie) Falk ( 1928 - ) is a Canadian painter. Agatha (gathie) Falk s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 5144.67 USD for Heavenly Body: Moon & Cloud in 2009 to 9635.69 USD for Piece of Water: Chief Dan George in 2013 , based on the size and medium of the artwork.