Guillaume Georges Roger ( 1867 - 1943 ) was a French painter. Guillaume Georges Roger s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1600 USD for L' ÉTÉ SUR LA CÔTE D'AZUR in 2008 to 2500 USD for Breton Girl on Shore in 2010 , based on the size and medium of the artwork.