Theo Van Sluys ( 1849 - 1931 ) was a Belgian painter. Theo Van Sluys s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1139.45 USD for Haybarges and a two-master on a calm in 2004 to 18000 USD for Sheep and Chickens in a Farm Interior in 2005 , based on the size and medium of the artwork.