Sandor Bortnyik ( 1893 - 1976 ) was a Hungarian painter. Sandor Bortnyik s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 407.19 USD for abc 1922 in 2004 to 114137.44 USD for A motoros in 2007 , based on the size and medium of the artwork.