Guillaume G. Roger ( 1867 - 1943 ) was a painter. Guillaume G. Roger s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 700 USD for MARIA MARIANI in 2006 to 2113.86 USD for PLM. L' ÉTÉ SUR LA CÔTE D'AZUR. "LE PORT DE SAINT JEAN CAP FERRAT". in 2014 , based on the size and medium of the artwork.