Sarah Biffin ( 1784 - 1850 ) was a British painter. Sarah Biffin s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 606.03 USD for A lady, in white lace-bordered black dress with white sleeves, white ribbon tied at waist, upswept dark hair dressed in ringlets in 2007 to 1239.19 USD for A Lady in 2009 , based on the size and medium