Eugene Zak ( 1884 - 1926 ) was a Polish painter. Eugene Zak s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 27485 USD for Pastorale in 2003 to 260000 USD for Nude against the Landscapes` Background, c. 1922 in 2005 , based on the size and medium of the artwork.