Jean Marc Dunant Vallier ( 1818 - 1888 ) was a Swiss painter. Jean Marc Dunant Vallier s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 343.5 USD for Blick von Brunnen auf den Urirotstock in 2004 to 8015.68 USD for View of San Marco and Santa Maria della Salute in Venice in 2008 , based on the size and medium of the artwork.