Oscar Louis Roty ( 1846 - 1911 ) was a painter. Oscar Louis Roty s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 1000 USD for Plaque: Dans le Deuil de la Patrie (recto); Sadi Carnot Presidente de la République Francaise (verso) in 2014