Antoine Duclos (after) ( 1742 - 1795 ) was a French painter. Antoine Duclos (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 23 USD for Le Concert in 2005 to 561.04 USD for Le Concert, a Madame La Contesse de Saint Brisson in 2012 , based on the size and medium of the artwork.