Kurt Schwitters ( 1887 - 1948 ) was a German Surrealism, Dadaism, and Merz painter. Kurt Schwitters s works have been put up for auction numerous times, with realized prices greatly surpassing estimated prices, varying from 23956.88 USD for Mz 30, 47 in 2002 to a remarkable record 8221326.43 USD for Ja - Was? - Bild in 2014 , based on the size and medium of the artwork.