Bertha Sourdillon ( 1896 - 1976 ) was a French painter. Bertha Sourdillon s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 62.42 USD for BATEAUX SUR LA PLAGE in 2006 to 624.17 USD for BERTHE SOURDILLON in 2006 , based on the size and medium of the artwork.