Sondra Lipton ( 1900 - ) is an American painter. Sondra Lipton s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3900 USD for Untitled (Apricots) in 2007 to 12000 USD for Untitled (Lilies of the Va ll e y ) in 2007 , based on the size and medium of the artwork.