Otto Pilny ( 1866 - 1936 ) was a Swiss painter. Otto Pilny s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2044.43 USD for At the Oasis: and At Prayer in 2003 to a remarkable record 222386.95 USD for Dancing slave girl in 2007 , based on the size and medium of the artwork.