J M Valentin ( 1900 - ) is a French painter. J M Valentin s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 665.39 USD for Nu allongé au bord du lac in 2004 to 1113.11 USD for Superbia auf einem Löwen reitend in 2005 , based on the size and medium of the artwork.