Rudolf Hellwag ( 1867 - 1942 ) was a German painter. Rudolf Hellwag s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 647.98 USD for Die Themse mit Tower Bridge und Schiffen in 2006 to 8388.18 USD for In the Park in 2008 , based on the size and medium of the artwork.